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CEEC prepares for next chapter in growth with personnel changes

Comminution of minerals, Environmental, Mineral processing, Mining people, Sustainable mining, Water management, , , , , , , , , , ,

The Coalition for Eco Efficient Comminution (CEEC) has announced several major changes in its governance and operation, with CEO, Alison Keogh (right), stepping down, Janine Herzig (left) joining CEEC as Executive President and Board Director and Marc Allen taking over from Michael Battersby as Chair.

After six years of working as CEO to promote CEEC, Keogh has decided to step down from the position, and to welcome in new leadership for CEEC’s next chapter, CEEC said, adding that it will make an announcement shortly about the appointment of additional operational staff and Directors.

Keogh says she is proud to have been an early mover to help industry share critical knowledge on installing renewables and progressing net zero emissions approaches. She grew the group’s global reach, led international workshops across three continents and developed free webinars and podcasts to reach more people, CEEC said. She also initiated CEEC’s first workshop on Water Curves in North America and helped raise awareness of how important comminution and processing are to reduce energy, emissions and water footprint across mining worldwide.

More recently, she steered CEEC through the global pandemic and oversaw the organisation’s 10-year anniversary milestone in 2021.

“I am honoured to have led CEEC, which helps industry share practical solutions and innovative advances that are so important for the sustainable minerals needed for our world’s future,” she said. “Collaboration is vital to accelerate the world’s transition to net zero emissions. CEEC brings leaders and innovators together to share knowledge of cutting-edge processing to reduce mining’s footprint.

“I look forward to CEEC’s next chapter led by Marc Allen and Janine Herzig and encourage visionary leaders to contribute to this inspirational and global group.”

CEEC’s Board of Directors has undertaken a strategic review to consider the ever increasing environmental, social and governance (ESG) requirements of the resources sector. The outcome of this analysis is that CEEC has created the role of Executive President and has brought in Janine Herzig in this position.

Herzig is a Director of MetVal Consulting Pty Ltd, Convenor of the MetPlant Conference Series, former Non-Executive Director of Base Resources Ltd and former Director and Immediate Past President of the Australasian Institute of Mining and Metallurgy (AusIMM). She has over 30 years’ experience in the resources sector, across multiple commodities; starting her professional career as a graduate metallurgist in Mount Isa and later working in various operational and project roles across on numerous sites, including 10 years with Iluka Resources.

As General Manager – Minerals and Industrial, with Amdel, she then led a major expansion and transformation of the company, which then became Bureau Veritas.

A Fellow and Chartered Professional (Metallurgy) of the AusIMM, Herzig is currently the Chair of the AusIMM ESG Board Advisory Group, Chair of the AusIMM International Advisory Forum, and Chair of the AusIMM Awards Committee Highest Honour Panel. She is also Co-Chair of the Global Mineral Professionals Alliance (GMPA) and its Global Action on Tailings (GAT) initiative.

Herzig is also a member of the Steering Committee for the NExUS program, the Advisory Board for the ARC Training Centre for Integrated Operations for Complex Resources, presenter for the AusIMM Professional Certificate in ESG and Social Responsibility and is on the Advisory Board of the Australian Society for Off-Earth Construction (ASOC) which operates out of the Andy Thomas Centre for Space Resources.

“I am delighted to assume this comprehensive leadership role with CEEC, having been a CEEC Advocate for the past two years,” she said. “It allows me to combine my passions for mineral processing, ESG initiatives, technical excellence and giving back to an industry that I love.”

CEEC’s Board has appointed Marc Allen as Chair of CEEC, taking over from Michael Battersby.

Allen is an energy and emissions expert who joined the CEEC Board as a Director in 2019. He is the Technical Director at engeco, a Singapore-based consultancy providing advisory services primarily in energy and greenhouse gas management and strategy, as well as broader sustainability, across Australasia.

He has over 20 years’ experience in a variety of operational and consulting roles with INPEX, Energetics, Simulus and BOC. His experience has focused on sustainability, process engineering, carbon management and energy efficiency to enable the transition to a low-carbon economy through development and implementation of robust strategies for greenhouse gas and energy management. He has published several papers on renewable energy, energy efficiency and carbon pricing, and holds a Bachelor of Engineering (Chemical) degree from the Curtin University of Technology. He is also a mentor for the Curtin Next Step mentoring program.

Outgoing Chair, Michael Battersby, welcomed Allen to the position: “I have been honoured to hold the position of Chair of CEEC for the last four years. However, renewal is always beneficial. I will join Joe Pease in becoming a past Chair and will continue as a Director.

“Having worked with Marc Allen during my time as Chair, I know he will lead CEEC to new heights in the coming years.”

Allen commented: “I have been involved with CEEC since 2018 and am very much looking forward to fulfilling the role of Chair and working to continue our mission to maximize energy efficiency across the minerals processing industry. I’m appreciative of the leadership shown by both Joe Pease and Michael Battersby during my time at CEEC so far and hope to continue to work with them closely while they remain on the board.”

CEEC will be announcing additional changes to prepare for the next evolution of the organisation and its growth and expansion. These include an increased focus on net zero, decarbonisation and ESG, finalisation of the Water Curves project, the release of new ‘Spotlight Leader Conversations’ video interviews and more episodes of the new ‘CEECing Change’ podcast.

The winners of the 2021 CEEC Medals were announced on June 21 and will be officially awarded by President, Janine Herzig, at the upcoming IMPC-APAC Conference in Melbourne in August.

CEEC heralds latest eco-efficient comminution medal winners

Base metals, Comminution of minerals, Environmental, Mineral processing, Mining equipment, Mining industry recognition, Mining services, Power supply for mines, , , , , , , , , , , , , , , , , , , , ,

The Coalition for Eco Efficient Comminution (CEEC) has announced the recipients of its 2021 CEEC Medal, which recognises outstanding published research and field work that contributes to making mineral processing more eco-efficient.

For the past decade the global not-for-profit organisation has been championing greater sustainability in mining, with a strong focus on communicating knowledge, technology and approaches that reduce energy usage in the high-intensity breaking, crushing and grinding processes.

CEEC Chair, Mike Battersby, said the 2021 CEEC Medal award received 14 high-quality submissions from researchers, operators and suppliers around the world, with entries judged by a Medal Evaluation Panel of four CEEC Directors.

“CEEC congratulates each of the award recipients for their outstanding work,” he said. “Their contributions have the potential to reduce environmental impact and unlock hidden value for shareholders, not just in their own operations, but industry-wide.”

The award recipients are:

  • 2021 CEEC Medal – Technical Research
    Marcos Bueno, Janne Torvela, Rajiv Chandramohan, Tábatha Chávez Matus, Toni Liedes and Malcolm Powell for their paper titled ‘The Double Wheel Breakage Test’. This was published in Minerals Engineering, Volume 168, July 2021.

The authors collaborated from across the world, comprising Finland’s Marcos Bueno, Geopyörä and the University of Oulu’s Janne Torvela and Toni Liedes, Intelligent Machines and Systems, and Tábatha Chávez Matus, Oulu Mining School; Rajiv Chandramohan from Ausenco, Canada; and Malcolm Powell, Julius Kruttschnitt Mineral Research Centre, The University of Queensland, Australia.

The winning paper shares the development of a prototype breakage testing device, Geopyörä, and shows breakage calibration results that indicate its potential to improve geometallurgical ore testing.

Medal Evaluation Panel Spokesperson and CEEC Director, Greg Lane, said the paper proposes a “genuinely better way to do something we already do”.

“This paper is a credit to the authors because it presents an opportunity to cost effectively increase our understanding of the ore breakage characteristics across an ore body and change the way we design plants,” he said.

“In presenting a detailed and complete description of a new testing device, this research offers huge potential to increase the scale of testing and number of comminution tests conducted for projects. This should allow for improved design outcomes, a reduction in project risk and better throughput (revenue) forecasting.”

  • 2021 CEEC Medal – Operations
    Ben Wraith, Justin Resta and Johan Welmans from Bluestone Mines Tasmania Joint Venture, Australia for their paper ‘Recent improvements in ore sorting at the Renison Tin Concentrator – target 1 Mt/a’. This was presented at the AusIMM Mill Operators’ Conference in Brisbane, Australia in June 2021.

Renison is the largest tin producer in Australia, and the paper documents how the site overcame challenging conditions and increased processing rates by upgrading its ore through X-ray Transmission (XRT) ore sorting and other mine to mill and geometallurgy practices.

Lane said the well written paper provided a valuable insight into the application of ore sorting in an operating plant, describing the reason for installation, the issues, and the cost impacts.

“The efficiency gains from coarse ore rejection prior to fine grinding are significant,” he said. “This insightful publication documents Renison’s experience with ore sorting and shares the value that coarse ore rejection added to the business.”

The CEEC Medal Evaluation Panel also awarded two High Commendations:

  • 2021 CEEC Medal High Commendation – Technical Research
    ‘SAG mill energy and wear insights derived from measuring inside the Mill’, authored by Dr Paul Shelley and Eugene Davies from Molycop, Global; Jacques Olivier, Western Australian School of Mines, Curtin University; and Mark Atta Danso, Westgold Resources, Australia. This paper was presented at the online Comminution ’21 conference.

It was the second year running that Dr Shelley’s research on SAG mill optimisation has received a High Commendation in this category. The judges noted: “It is good to see work progressing on understanding the efficiency gains that can be achieved by understanding what happens inside a mill.

“By getting real measurements from the heart of the breakage process, the paper shows how researchers, operators and suppliers can systematically investigate methods and materials to improve milling efficiency.”

  • 2021 CEEC Medal High Commendation – Operations
    ‘Throughput improvements at the Capstone Pinto Valley Operation’, a video presentation delivered at the online Comminution ‘21 conference.

The work was authored by Umut Erol and Curtis Wettstein from Capstone Mining Corporation’s Pinto Valley copper mine in Arizona, USA, and Adrian Dance, SRK Consulting, Canada.

The judging panel said the well-presented, clear and concise presentation provided evidence of how increased fragmentation affected project efficiency and operating costs.

“The work outlines how projects can make material value improvements through diligent and well-planned work focused on optimising comminution efficiency to improve plant capacity and reduce operating costs,” the judges said.

Battersby said the CEEC Medal, now in its 10th year, would not be possible without the support of CEEC’s industry sponsors who help fund the organisation’s work in accelerating more eco-efficient mineral processing.

“Special thanks to our valued sponsors and to everyone who nominated for the award,” he said. “Abstracts from the successful papers can be viewed on the CEEC website, along with other freely available resources that catalyse industry uptake of more efficient comminution practices.”

He also paid tribute to CEEC Director, Zeljka Pokrajcic, for her stellar work in chairing the CEEC Medal Evaluation Panel for the past 10 years, before handing over the reins to Greg Lane.

Nominations for the 2022 CEEC Medal are now open, with submissions closing on 31 October 2022. Details on how to apply can be found here

Metso Outotec to spread sustainable comminution message through CEEC

Comminution of minerals, Environmental, Mineral processing, Mining equipment, Mining industry recognition, Mining services, Power supply for mines, Sustainable mining, , , , , ,

Metso Outotec has become the latest company to join the Coalition for Eco Efficient Comminution (CEEC) as a new sponsor, with the OEM’s President and CEO, Pekka Vauramo, noting that the company’s sustainability focus aligns with CEEC’s objective to promote eco-efficient minerals.

CEEC’s vision is to accelerate the implementation of eco-efficient comminution practices through promotion of supporting data and industry benefits.

Alison Keogh, CEEC CEO, said: “Metso Outotec brings strong alignment and skills to support CEEC’s mission. Metso Outotec has a global reach and has been championing sustainability for a long time by proactively developing technologies and partnering with mining companies to become more energy efficient.”

Vauramo said: “We are committed to limiting global warming to 1.5°C and accelerating our sustainability efforts, as the most recent IPCC report makes it clear that the window of opportunity for keeping to 1.5°C is closing quickly. We want to support our customers in reducing their emissions with our sustainable offering that utilises the most efficient technologies.”
Metso Outotec Head of Grinding Business Line, Christoph Hoetzel, said that as comminution is the most energy-intensive step in mining, improving how rocks are ground and processed now and in the future is key to reducing industry’s carbon emissions.

“I encourage three collaboration actions through CEEC to accelerate our collective efforts for more energy and water efficient minerals: sharing case studies and knowledge, benchmarking and innovation,” he said. “Our combined learnings and operational successes can all help industry truly improve and accelerate the decarbonisation change.

“Visionary leaders are actively pushing towards what can be done better. Metso Outotec is keen to help communicate the business case for alternative grinding circuits and processing flowsheets. Our range of proven energy efficient solutions – which is the widest in the industry – allows a truly holistic approach considering efficiency, reliability and low operational costs. Such holistic approaches with innovative plant design and optimisation are vital to reduce mining’s footprint.”

Keogh commended Metso Outotec’s goals to accelerate eco-efficient minerals, noting its demonstrated track history of being a leader in comminution improvements.

Metso Outotec has previously been shared winners of the CEEC Medal twice.

In 2012, staff from Metso and Compañía Minera Antamina co-authored the paper ‘Optimisation and continuous improvement of the Antamina Comminution Circuit’, which won the inaugural 2012 CEEC Medal.

In 2020, Metso and Newmont Corp staff co-authored the paper ‘Reducing Energy and Water Consumption through Alternative Comminution Circuits’, winning the 2020 CEEC Medal for Operations.

Maptek brings mining software knowledge to CEEC

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Maptek has become the latest company to join the Coalition for Eco Efficient Comminution (CEEC) as a new sponsor, signing on for three years of sponsorship.

Announcing the Maptek sponsorship, CEEC CEO, Alison Keogh, welcomed the company to CEEC’s worldwide network of miners, mining supply companies and researchers working toward more sustainable practices.

“Maptek is the first mining design software company to sponsor CEEC’s important work,” she said. “It delivers advanced tech solutions to people making key decisions at mine sites, and has a truly global reach, which means Maptek can help drive large, positive impacts.

“High-impact Maptek technologies are used at thousands of sites worldwide, so Maptek is in a great position to work with miners to find and implement new ways to create value and reduce footprint. Together, we see exciting opportunities for mining companies to leverage technology as we all strive to decarbonise and achieve the best possible ESG outcomes.”

Maptek solutions cover the whole mining cycle, and the company’s vision is to change the way mining is done, forever, CEEC says.

Maptek CEO, Eduardo Coloma, said these aims can be best achieved by considering comminution outcomes from the earliest stages of mining.

“Building eco efficiency and sustainability into a mine’s operating model is more than possible,” he said. “The latest technologies allow us to predict energy and productivity improvements by linking the orebody to the plant. There are a lot of opportunities, and we hope to contribute to sharing the world’s leading practices and technology options to accelerate these through our support of CEEC.

“CEEC objectives to drive efficiency, productivity and sustainability throughout the whole mining life cycle are well aligned with Maptek aspirations.”

Coloma believes the industry can share site knowledge and practical ways to optimise energy consumption and reduce operating costs, with better downstream cost efficiencies.

He added that partnerships and collaboration are key to success. Maptek brings established partnerships with miners and collaborators, including CEEC Sponsor PETRA Data Science, and is looking forward to working with others to help share practical site optimisation and industry decarbonisation options, CEEC says.

Coloma said understanding its customers’ future energy plans now enables users to incorporate solar and wind energy usage into mine scheduling tools, and predict better plant and energy performance.

“Maptek solutions already include multi-objective optimisation for blast design and fragmentation prediction and analysis, all helping to drive improved productivity and performance from mine to mill,” he said. “Tracking fragmentation on a blast-by-blast basis helps operations improve mining performance.

“We’re keen to share inspiring ideas and solutions like this, to help encourage uptake of best practice, which is fundamental to increasing sustainability for the future of the mining industry.”

Keogh said Maptek coming on board as a CEEC sponsor highlights the huge potential to translate improvement goals around mining footprint and productivity, and connect them across the silos into real actions on the ground at mine sites.

She noted that industry now has advanced technology to make decisions that drive big impacts downstream: from blast design and execution, to ore-waste delineation, efficient excavation and fleet use, through to energy and water use in the mill and beyond.

“Technology options available now offer exciting and tangible options,” she said. “We can leverage advanced, practical software at sites, and extend this further with new knowledge from big data and digital twins. I look forward to mine sites sharing their work to not only test and plan, but also put in place these positive changes across mine sites worldwide.”

Swiss Tower Mills Minerals backs Coalition for Eco-Efficient Comminution

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Swiss Tower Mills Minerals AG (STM) has become the latest sponsor to support the work of the not-for-profit Coalition for Eco-Efficient Comminution (CEEC).

An innovative company that has successfully translated the vertical stirred milling technology of industrial minerals to hard-rock minerals processing, STM’s support of CEEC’s work was a natural fit for the company, according to Managing Director, Ralf Hesemann.

“The uptake of new technology in the mining industry is traditionally a slow process,” Hesemann said. “Tapping into a trusted independent body that communicates the latest technical findings on efficient comminution practices is a win-win for both of us.

“I look forward to our collaboration.”

Swiss-based STM developed the Vertical Regrind Mill (VRM) and released it to the minerals market in 2012. More than 60 of the stirred media grinding mills have been sold to mines across the Americas, Europe, Africa, Asia and Australia. For fine and ultra-fine grinding applications, it is marketed under the name HIGmill, through the exclusive partner Metso:Outotec. For coarse regrind applications, STM offers the VRM mill directly to customers in the minerals market.

Since the grinding principle of multi-compartment grinding offers substantial energy savings, a new stirred mill has been developed for coarse grinding applications up to 6 mm feed size, the Vertical Power Mill™ (VPM). Mill sizes range from 700 kW to 12,500 kW with high flow rates, and potential energy savings of up to 40%. Due to its small footprint, STM is marketing the VPM as a viable ball mill replacement in HPGR circuits or for capacity increase in existing plants.

The energy savings are achieved through uniquely designed rotors and stator rings in a vertical arrangement that enable high power intensities, even with relatively low tip speeds, STM says. This results in higher energy efficiency, a smaller footprint and the potential for increased recoveries. Power intensities of 200-300 kW/cu.m are typical, and operational tip speeds range between 6-12 m/s, depending on application and mill size.

CEEC Director, Chris Rule, said it was encouraging to see energy efficient, stirred media mills being installed by industry as a step towards more sustainable mining practices, in line with ESG considerations and net zero emissions commitments.

One of the first HIGmills be commissioned, in 2015, was a 700 kW mill for a copper concentrate regrind application at the Kevitsa mine in Finland. Several papers have been published on the energy efficiency and metallurgical performance of this mill, including an Outotec paper presented at Comminution Capetown 2016, and ‘A Review of Published Full-Scale Stirred Mill Results’ by Michael Larson, Molycop, USA, presented at the SAG 2019 Conference.

The technology will also be installed at the Iron Bridge Magnetite Project in Western Australia. The joint venture between Fortescue Metals Group and Formosa Steel IB Pty Ltd is the world’s first large-scale plant without horizontal milling. The flowsheet consists of a two-stage HPGR circuit feeding in total 10 advanced HIGmill grinding mills.

Rule said stirred mill grinding technology had been well proven for decades in industrial mineral applications such as in the opacifiers, fillers, ceramics, paint and pharmaceutical industries.

“We commend STM for translating this technology to mineral processing, offering miners an energy-efficient, low footprint alternative to high-intensity ball milling,” Rule said.

“Having STM on board as a CEEC sponsor means greater opportunities for us to learn about and share alternative comminution approaches. This support from our valued sponsors over the past 10 years is what enables CEEC to help keep industry aware of demonstrated advances that help mining leaders tackle the challenges of reducing the energy consumption, emissions and overall footprint of their operations.”

Hesemann said declining ore quality meant energy efficient comminution was becoming a more critical stage for realising profit.

“We’re proud of the part our technology plays in lowering the footprint of mineral processing, while at the same time decreasing capital expenditure and operating expenditure and improving the bottom line.

“Being a CEEC sponsor will enable us to more widely share any advances in this field, as well as learning from the global network of industry experts that CEEC brings together through its events and online resources.”

Pictured is the factory acceptance test success for a new 50,000 litre Vertical Regrind Mill (VRM50000)

Weir-backed report highlights decarbonisation opportunities in mineral processing

Base metals, Comminution of minerals, Environmental, Mineral processing, Mining industry recognition, Mining services, Power supply for mines, Precious metals, Sustainable mining, , , , , , , ,

An independent report, commissioned by the Weir Group, has highlighted the global mining industry’s energy usage, illuminating where energy is consumed and linking it with opportunities and pathways for sector-wide decarbonisation.

The report analyses mine energy use from over 40 published studies, centred on five commodities – copper, gold, iron ore, nickel and lithium. For these five metals, it finds comminution – the crushing and grinding of rocks – alone accounts for 25% of final energy consumption at an ‘average’ mine site. Extended across all hard-rock mining, this is equivalent to up to 1% of total final energy consumption globally.

The report reconfirms comminution as a key target for energy and emissions reduction efforts.

These findings align with the mission of the Coalition for Energy Efficient Comminution (CEEC), a global initiative to accelerate eco-efficient minerals, with a focus on energy-efficient comminution. It also extends on previous CEEC messaging, indicating up to 3% of global electrical energy is used in comminution when considering all mined commodities, quarrying and cement production.

In addition to optimising comminution, the report also highlights other energy and emissions reduction opportunities such as the redesign of grinding circuits at greenfield sites, improved drill and blast approaches, pre-concentration, and the use of artificial intelligence and machine learning to improve decision making.

The report emphasises the mining industry’s crucial role in supporting the transition to net zero emissions, needed to limit global temperatures in line with the Paris Agreement, CEEC says. This includes more efficient and sustainable technologies if the industry is to meet the challenge of decarbonisation.

“Despite the scale of the challenge, the report underlines that small improvements in existing mines can lead to large savings in both energy consumption and greenhouse gas (GHG) emissions,” CEEC said.

Report author, Marc Allen, states a 5% incremental improvement in energy efficiency across comminution could result in greenhouse gas emission reductions of more than 30 Mt of CO2e.

Allen said: “A relatively modest 5% improvement in comminution across the industry may result in emissions reductions close to the total emissions for New Zealand (35 Mt CO2e).

“A more robust energy audit process and implementation of low-cost opportunities across a mine and process plant may result in total energy savings of up to 10-15% and overall emissions reductions of over 200 Mt of CO2e per annum, depending on the source of electricity.

“Large-scale introduction of renewable energy provides the potential to reduce emissions significantly in the industry – hundreds of millions of tonnes of greenhouse gas savings when there is widespread adoption of renewable energy and energy storage.”

CEEC CEO, Alison Keogh, commended Weir for commissioning this timely work, and all industry leaders taking proactive steps to reduce mining’s footprint. She said outstanding CEEC Medal winning work and 700 published advances have already shared good options for miners to consider, thanks to CEEC sponsors, volunteers and authors.

She urged industry to collaborate to accelerate decarbonisation steps.

“More open knowledge sharing helps speed installations of renewables and energy-efficient approaches across all of industry,” Keogh said. “Benefits also include increased productivity, shareholder value, and financing as companies demonstrate performance towards net zero emissions sooner.”

She cited three key collaboration actions vital to success: (1) sharing best practices, to ensure existing mines and processing plants are better informed and take actions earlier to become more energy and water efficient; (2) sharing new technologies, designs and innovations; and (3) supporting test work and pilots of novel technology on sites and at increasing scales.

Keogh called for greater industry dialogue, noting: “This report highlights both a challenge and an opportunity to revitalise cross-industry discussion and actions on decarbonisation and ESG solutions. Weir is one of many visionary CEEC sponsors supporting public good initiatives like CEEC; we invite industry leaders to actively contribute and collaborate through mining-vendor-research partnerships and share knowledge, site case studies and net zero plans via independent organisations such as CEEC.

“Together, we can accelerate improved energy, emissions and water footprint across industry faster.”

Weir Group Chief Executive, Jon Stanton, commented: “Mining needs to become more sustainable and efficient if it is to provide essential resources the world needs for decarbonisation while reducing its own environmental impact. This report is an important contribution to that debate which we hope will spark thoughtful conversations around the world on the way forward.”

Centerra Gold joins CEEC’s quest for eco-efficient comminution

Comminution of minerals, Environmental, Mineral processing, Mining services, Power supply for mines, Sustainable mining, Water management, , , , , , , , ,

Centerra Gold has become the latest miner to join the Coalition of Energy Efficient Comminution (CEEC) as a new sponsor.

Centerra, which follows in the footsteps of Hudbay Minerals in backing the not-for-profit organisation, is a Canada-based gold mining and exploration company with assets in Canada, the Kyrgyz Republic and Turkey. It is one of the largest Western-based gold producers in central Asia, and its Mount Milligan mine (pictured) is the first, large new operation in British Columbia in a generation.

The company’s vision is to build a team-based culture of excellence that responsibly delivers sustainable value and growth, according to CEEC.

CEEC CEO, Alison Keogh, said: “We are thrilled with Centerra’s decision to become a CEEC sponsor. Our sponsors work collaboratively to accelerate energy-efficient, productive mining processes. That’s vital for our industry and communities as we reduce impact, tackle costs and improve shareholder value.

“As a CEEC sponsor, Centerra helps CEEC provide industry with information and tools from experts and grow the network of committed professionals working to accelerate eco-efficient comminution and maximise the potential of their mineral resources and assets.”

Centerra Vice President and Chief Operating Officer, Daniel Desjardins, praised CEEC for its contributions towards environmental, social and governance (ESG) actions in the field and welcomed the opportunity to share information to advance business goals.

“Centerra’s financial and operational objectives are underpinned by a fundamental commitment to ethical and sustainable practices,” Desjardins said. “Our values are strongly aligned to CEEC’s mission for eco-efficient comminution; environmental, social and governance factors are our foremost priorities as we strive to continually improve the management of our operations.

“CEEC offers a pathway to share best practice and innovation in the international mining sector. We look forward to collaborating with like-minded organisations on shared challenges such as energy and water use.”

Centerra produced 783,308 oz of gold and 3,220 t of copper in 2019, making it one of the leading gold and copper producers based out of Canada.

The company’s major assets include the Kumtor Mine in the Kyrgyz Republic, which has produced more than 12.6 Moz of gold between 1997 and the end of 2019, and the long life, low-cost gold/copper Mount Milligan Mine, in British Columbia, Canada. The third operating mine, the Öksüt Gold Mine, in central Anatolia, Turkey, poured gold for the first time on January 31, 2020, after just 22 months of construction.

Hudbay invests in comminution energy efficiency research with CEEC sponsorship

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The Coalition for Energy Efficient Comminution (CEEC) has announced new sponsorship from base and precious metals mining company, Hudbay Minerals Inc.

Hudbay, a diversified mining company producing copper, zinc, gold and silver, owns three polymetallic mines, four ore concentrators and a zinc production facility in Canada and Peru (Constancia, pictured), as well as copper projects in the US. Its vision is to be a responsible, top-tier operator of long-life, low-cost mines in the Americas, CEEC says.

CEEC CEO, Alison Keogh, said that with growing global demand for minerals such as copper to support the shift towards low-carbon technologies, the need for lower footprint mineral processing was becoming even more critical.

“Rock crushing and grinding can typically account for more than half of a mine’s energy consumption,” she said. “By working together as an industry to understand and optimise comminution challenges, we have the opportunity to improve efficiency and environmental outcomes.

“We’re delighted that Hudbay has joined our list of visionary sponsors, each committed to collaborating with CEEC’s global network of miners, suppliers and researchers to advance efficient, cost-effective, lower footprint mining.”

Peter Amelunxen, Hudbay Vice President of Technical Services, said increasing performance and delivering sustainable value involves a combination of operational know-how and technical sophistication.

“We recognise that collaboration with CEEC is a positive step in our commitment to continuous improvement.”

Amelunxen said Hudbay was particularly interested in “adding a metric to our success” by contributing to the CEEC Energy Curves database. This free tool allows users to benchmark the energy efficiency of sites and visually assess potential energy and cost benefits through various operational scenarios.

“We’ve always approached what we do in terms of improving cost and energy efficiencies,” he said. “However, we’re most excited about using the Energy Curves to quantify, pound for pound, the energy reduction piece.

“This will help inform our decisions around targeted enhancements to existing sites and plan best practice operations in future mines. The bottom line is that this tool will enable us to demonstrate how we are improving environmental management while also improving returns for shareholders.”

David Clarry, Hudbay Vice President of Corporate Social Responsibility, said data sharing through the CEEC Energy Curves, and broader initiatives such as participation in the CDP (formerly Carbon Disclosure Project), were important for the industry.

“By being transparent and sharing knowledge, we can learn from each other and find novel approaches for achieving environmental benefits in a cost-effective way,” Clarry said. “Tapping into all the resources that CEEC offers gives us cutting-edge learnings so we can continue to pursue economically viable opportunities to improve energy efficiencies, reduce greenhouse gas emissions and better manage climate-related risks.”

Keogh said with the COVID-19 pandemic affecting many businesses around the world, Hudbay’s sponsorship during this time was commendable.

“As a lean, virtual not-for-profit, we thank all our sponsors for their continued support during this period of uncertainty,” she said. “This ongoing commitment will help CEEC and the industry to weather the storm and come out stronger and more sustainable on the other side.”

CEEC Medal recipients recognised for pushing lower footprint mineral processing

Base metals, Bulk handling, Comminution of minerals, Environmental, IoT, Metallurgy, Mineral processing, Mining equipment, Mining people, Mining services, Power supply for mines, Sustainable mining, Water management, , , , , , , , , , , , , , , , , , , , , , , , ,

Two standout research and field work contributions that have the potential to improve environmental, social and governance (ESG) performance across industry have been awarded the highly respected CEEC Medal for 2020.

Attracting a record 23 high-quality nominations from across the globe, the shortlisted Operations and Technical Research papers showcased exciting site improvements and innovative ideas for future technologies, according to the Coalition for Energy Efficient Comminution (CEEC).

Now in its ninth year, the CEEC Medal recognises the best published papers that raise awareness of comminution research findings, alternative comminution strategies and installed outcomes.

CEEC Director and Medal Evaluation Committee Chair, Dr Zeljka Pokrajcic, said this year’s nominations reflected industry trends to install renewables, consider embodied energy and emissions, and the continued embracing of technologies such as pre-concentration and coarse flotation.

“It’s rewarding to see how industry leaders and experts are collaborating to forge improvements that make good business sense and proactively improve efficiency,” Dr Pokrajcic said.

The 2020 recipients are:

Operations

Peter Lind and Kevin Murray of Newmont and Alan Boylston and Isaias Arce of Metso Outotec, (formerly Metso), for their paper titled, ‘Reducing Energy and Water Consumption through Alternative Comminution Circuits’. This was presented at the 7th SAG Conference in Vancouver, Canada, in 2019.

Technical Research

Dr Grant Ballantyne (pictured), for his paper titled, ‘Quantifying the Additional Energy Consumed by Ancillary Equipment and Embodied in Grinding Media in Comminution Circuits’. This was also presented at the 7th SAG Conference in Vancouver.

Dr Pokrajcic said the winning Operations paper from Newmont/Metso Outotec documents a successful miner/vendor collaboration on how to assess the comminution circuit options in a low energy and water environment.

The paper considers a typical case of a low grade, bulk tonnage copper-gold orebody in an arid climate (Chile, South America) with significant energy costs. It brings together important solutions – including energy-efficient comminution, ancillary equipment, preconcentration and flotation – and presents compelling economic comparisons.

CEEC CEO, Alison Keogh, said of the paper: “This global knowledge sharing offers real value for decision-making across the globe. The paper’s practical, systematic technology approach, which incorporates all-important financial analysis, has the potential to accelerate industry’s progress to deliver lower footprint minerals.”

The paper’s co-authors, Lind and Boylston, explained that the work was the result of collaboration between many innovative thinkers, with ideas and approaches built over many years.

“We wanted to make a difference, to bring technologies together to show that you can save energy, save water and save money as well. This was a group effort, not only by our extended teams at Newmont and Metso Outotec, but also involving Steinert and Scantech in working through how to apply technologies,” they said.

The CEEC Medal Evaluation Committee praised the winning Technical Research paper from Dr Ballantyne as being “an impressive approach to capturing and quantifying energy consumption of ancillary equipment and energy used to manufacture and transport grinding media”.

The paper shares insights on embodied energy using data collected from sites and presents results on the CEEC Energy Curves.

“The research presents a broader approach that considers the impacts of not just energy used in particle breakage but also embodied energy in the manufacture and transport of grinding media, and energy used in the operation of ancillary equipment such as conveyors and pumps,” Dr Pokrajcic said.

“Bringing this spotlight to embodied energy has strategic value. Many companies are including investigation of supply chain in their procurement decisions.”

Dr Ballantyne, previously a Senior Research Fellow at the Julius Kruttschnitt Mineral Research Centre (JKMRC), and now with Ausenco, noted that his work started in 2012, building on earlier concepts shared by industry at a CEEC workshop in Australia. These concepts were developed further following industry input at the 2015 SAG Conference in Canada.

“I also acknowledge the inspiration and collaboration of Chris Greet (Magotteaux), Evert Lessing (formerly Weir, now Metso Outotec), Malcolm Powell (formerly The University of Queensland) and Greg Lane (Ausenco) for contributing expert input and data to the work,” Dr Ballantyne said.

“New research ideas and collaboration with industry are key to industry innovation,” he said. “Support and mentoring from these suppliers as well as experts from Ausenco and The University of Queensland ensured these new ideas could be published for industry to progress thinking.”

In addition to the two CEEC Medals awarded in 2020, three publications received High Commendations.

High Commendations – Operations

Ben Adair, Luke Keeney, and Michael Scott from CRC ORE, and David King from Minera San Cristóbal operations, for their paper titled ‘Gangue rejection in practice – the implementation of Grade Engineering® at the Minera San Cristóbal Site’. This was presented at Physical Separation 2019, in Cornwall, United Kingdom.

This paper shares the prediction and outcomes of a Grade Engineering pilot at Sumitomo’s Minera San Cristóbal operations in Bolivia. The work identifies ore amenability and levers to optimise up-front rejection of gangue before processing.

Keogh said: “This approach highlights the scale of the opportunity for mining leaders to invest in unlocking hidden value for shareholders through productivity step-change while significantly reducing impact on the environment.”

High Commendations – Operations (continued)

Malcolm Powell, Ceren Bozbay, Sarma Kanchibotla, Benjamin Bonfils, Anand Musunuri, Vladimir Jokovic, Marko Hilden, Jace Young and Emrah Yalcin, for their article titled ‘Advanced Mine-to-Mill Used to Unlock SABC Capacity at the Barrick Cortez Mine’. This was presented at the 7th SAG Conference in Vancouver.

This work was a collaboration between three organisations: JKMRC at The University of Queensland’s Sustainable Minerals Institute, Barrick’s Cortez mine and JK Tech. It shares an advanced mine-to-mill approach that unlocks improved SABC production capacity at Barrick’s Cortez mine in Nevada, USA.

Dr Pokrajcic said the article was an excellent review of the dynamic between SAG and ball mills, illustrating how mine-to-mill, with the consideration of blast movement as well as fragmentation, and operation-wide optimisation could empower sites to identify and sustain long-term improvements.

“It highlights the opportunity of operationalising cooperative ore blend control to balance energy use across the milling circuit, reducing specific energy consumption while benefitting from increased production,” she said.

High Commendation – Technical Research

Paul Shelley and Ignacio Molina (Molycop) and Dimitrios Patsikatheodorou (Westgold Resources), for their paper titled ‘SAG mill optimisation insights by measuring inside the mill’. This was presented at the Procemin-Geomet Conference in Santiago, Chile, in 2019.

In a first for industry, this innovative approach aims to collect data from sensors inside the grinding balls within grinding mills, CEEC said. It brings potential application for high frequency measurement of temperature and impacts inside the mill.

Dr Pokrajcic said: “If this early work can be successfully commercialised and scaled up, it could bring new insights that link to operational and energy efficiency improvements.”

Keogh said nominations for the 2021 CEEC Medal were now open, and she encouraged the submission of relevant, ground-breaking articles from online events and industry presentations.

“Because of disruptions to physical events, we have extended the closing date for submissions to October 30, 2021.”

Details of the application process for the 2021 CEEC Medal can be found here.

Thermo Fisher Scientific joins CEEC communication hub

Bulk handling, Comminution of minerals, Environmental, IoT, Mineral processing, Mining policy, Mining services, Power supply for mines, , , , , , , , ,

The addition of new industry sponsors is enabling the Coalition for Energy Efficient Comminution (CEEC) to gain greater traction in leading change and driving the uptake of more energy and water efficient, lower impact mineral processing, it says.

CEEC said this after recruiting Thermo Fisher Scientific, a world leader in supplying solutions for efficient and sustainable mining, as a sponsor of the global not-for-profit communication hub.

Employing more than 75,000 people globally, Thermo Fisher Scientific operates through four segments: Life Sciences Solutions, Analytical Instruments, Specialty Diagnostics, and Laboratory Products and Services. The company provides weighing, monitoring and sampling systems and applications expertise to help optimise process control, production monitoring and automation in mining and bulk material handling.

Thermo Fisher Scientific Field Marketing Manager, Scott Ferguson, said the company’s mission “to make the world healthier, cleaner and safer” was very much in alignment with CEEC’s vision for more efficient, lower footprint mining.

Following extensive analysis of client needs, and a solid investment in research and development, Thermo Fisher is expanding its suite of sorting and pre-concentration products for the minerals sector, according to CEEC.

In response to renewed interest in pre-concentration processes, Thermo Fisher Scientific has launched its cross belt analyser, CB Omni Fusion, using prompt gamma neutron activation analysis into bulk ore sorting applications.

The company also released a new particle size analyser (PSM-500) in June 2020 – specifically designed for comminution circuits.

“The ability to measure product out of the grinding circuit in real time can have very large benefits,” Ferguson said. “By optimising grinding control systems, operators can maximise throughput, use energy more effectively and achieve greater recovery.

“This analyser draws upon proven technology and incorporates an interactive user interface and improved reliability,” he said.

Thermo Fisher Scientific has been supplying slurry samplers, in-stream analysers and cross belt analysers for more than 40 years, CEEC explained.

CEEC CEO, Alison Keogh, said Thermo Fisher Scientific was a welcome addition to its list of valued sponsors from around the globe.

“We’re proud to partner with companies that provide solutions for efficient and sustainable mining,” Keogh said. “These relationships open the door to wider awareness and adoption of new technologies and processes that positively impact the industry.

“This support from Thermo Fisher Scientific, in conjunction with our other sponsors, helps CEEC continue its important global work of providing free and impartial online resources and low cost events that highlight best practice and emerging advances in profitable, eco-efficient mineral processing.”