Tag Archives: nickel

New block cave operation starts up at BHP Nickel West

In what BHP says is a major milestone for its Nickel West operations at Leinster, in Western Australia, the B11 block cave is now fully operational following the firing of the last drawbell last month.

The block cave is now one of Nickel West’s most innovative operations and will be a producer of nickel at Leinster for approximately the next seven years.

BHP Northern Operations General Manager, Mike Moscarda, said the project would have a huge impact on production at Leinster.

“This is a first for BHP and was a huge commitment for the business to take on,” Moscarda said. “Now that it’s complete, it will contribute up to 50% of the ore in production at Leinster.”

Block caving allows for safe, low cost continued production and reduces the impact of seismic activity in the workplaces. It removes people from the most hazardous areas of the mine while remotely targeting the ore above.

BHP Manager Mining Leinster, Brendon Shadlow, said the block cave project began as a way to make mining more sustainable at B11, an area known for seismic activity.

“The mine had to close following some major seismic activity in 2013,” Shadlow explained. “With the new block cave, we can safely and efficiently continue mining even in the event of seismic activity.”

The block cave will now be established as a technical centre and the learnings from this project will help shape the future of mining techniques at Nickel West and beyond.

BHP Head of Planning and Technical, Chris Stone, said: “None of this would have been possible without the many highly capable and committed team members who have worked over many years to help deliver the result we have today. Thank you to everyone who has helped bring this project to fruition.

“We are so grateful to the project team, the Leinster crew and all of the contractors who have worked so diligently throughout the life of the project.”

The B11 block cave is planned to recover over 80,000 t of nickel.

Canada Nickel to leverage trolley assist, IPT carbon capture & storage at Crawford

Canada Nickel Company has released the results of a bankable feasibility study (BFS) on its wholly-owned Crawford nickel sulphide project in Ontario, Canada that highlights the potential use of trolley-assist trucking and the company’s proprietary carbon capture and storage technology.

The BFS, prepared by Ausenco Engineering Canada, displayed an after-tax NPV (8% discount) of $2.5 billion and an internal rate of return of 17.1%. This is based on a long-term nickel price of $21,000/t, a C$:$US of $0.76 and an oil price of $70/bbl.

Crawford, in Timmins, Ontario, is the world’s second largest nickel reserve, according to Wood Mackenzie. Once in production, it is also expected to become one of Canada’s largest carbon storage facilities and be a net negative contributor of CO2 over the project life.

The study was based off proven and probable reserves of 3.8 Mt contained nickel from 1,700 Mt of ore grading 0.22% Ni, providing annual average nickel production of 38,000 t over a 41-year life, with production of 48,000 t/y of nickel, 800 t/y of cobalt, 13,000 oz of palladium and platinum, 1.6 Mt/y of iron and 76,000 t/y of chrome over 27-year peak period.

Crawford will produce two concentrates with life-of-mine average concentrate grades as follows:

  • Nickel concentrate: 34% Ni, 0.7% Co and 4.1 g/t combined Pd and Pt; and
  • Iron ore concentrate: 55% Fe, 0.3% Ni, 2.6% Cr.

The project’s carbon footprint has been calculated at 4.8 t CO2 per tonne of nickel in concentrate, or 2.3 t CO2 per tonne of nickel equivalent, largely due to the use of an electrically powered mining fleet, including trolley-assist trucks, that are expected to reduce diesel consumption by over 40% compared to diesel powered equipment.

Crawford will mine two separate open pits that contain approximately equal tonnages of ore. Approximately 89% of material mined will be rock, which will be drilled and blasted before being loaded by electrically powered rope shovels or large hydraulic excavators into 290 t trucks equipped with trolley assist. Over 70% of uphill hauls by this fleet will be conducted on trolley, reducing diesel consumption by approximately 1.5 billion litres, while faster speeds will reduce the fleet by 12 units, the company says. The remaining material will be overburden that will not require drilling and blasting and will be loaded and hauled with a mixed fleet of smaller equipment.

The concentrator will process ore using a conventional milling circuit. Unit operations include crushing, SAG and ball mill grinding, desliming, nickel flotation, magnetic separation on the flotation tailings and carbon storage using the company’s proprietary IPT (In-Process Tailings) Carbonation technology.

Crawford, and the company’s other properties in the Timmins Nickel District, are hosted in ultramafic rock, which contain minerals such as brucite that naturally absorb and sequester CO2. Canada Nickel has developed the novel IPT Carbonation process which involves injecting a concentrated source of CO2 into tailings generated by the milling process for a brief period of time. This simple process stores CO2 chemically in the tailings while they are still in the processing circuit, rather than after they have been finally deposited.

This technology is anticipated to allow capture and storage of 1.5 Mt/y of CO2 during the 27-year peak period, the bulk of which will be sold to third parties.

Mark Selby, CEO of Canada Nickel, said: “This BFS is a significant milestone for Crawford and a major step forward in demonstrating the value of our Timmins Nickel District and its potential to anchor a Zero Carbon Industrial Cluster in the Timmins-Cochrane region. Crawford is poised to be a leader in the energy transition through the large-scale production of critical minerals, including nickel and cobalt, and is expected to become the sole North American producer of chromium, while also supporting Canada’s climate objectives through industrial-scale carbon capture and storage.

“I am very proud of our team for accomplishing this milestone in a very short amount of time. Just four years ago, Crawford had only five drill holes. Today, we believe it is a world-class project with tremendous momentum. We are fully focused on pursuing our next milestones of obtaining permits, developing a financing package, and moving towards a production decision by mid-2025, with a goal of first production by the end of 2027.”

Terrafame leveraging Kelluu hydrogen-powered airship mine monitoring solution

Terrafame, a responsible battery chemicals producer for electric vehicles, has selected Finland-based airship development company Kelluu to provide accurate and geo-referenced terrain data for continuous monitoring of its 60 sq.km industrial site.

The aerial monitoring has been done mainly using satellites or helicopters, battery-powered drones, or land-based surveys.

Kelluu develops long-distance, self-flying and hydrogen-powered airship concepts mounted with several spectral cameras, sensors and scanners that can gather real-time data on terrain, vegetation and infrastructure. It then processes the data to create an accurate 3D digital twin of the environment, enabling Terrafame in this instance to monitor and forecast dynamic changes at the industrial site and optimise its infrastructure maintenance and production processes, and further strengthen the environmental safety of the site, Kelluu says.

Aki Ullgren, Senior Geotechnical Engineer at Terrafame, said: “The combination of high-resolution RGB, multispectral and Flir images, combined with the same 3D mesh, is a fascinating tool, especially in heap leaching and open-pit slope stability modelling. We’re happy to welcome Kelluu to the group of monitoring services we use to promote safety and efficiency at our Terrafame site.”

Kelluu’s airships are highly efficient, emitting 99.5% less CO2 emissions than traditional aerial monitoring, and frequently cover mission times of over 12 hours, the company claims. The airships are effectively operational in sub-zero temperatures.

Kelluu says its facility in Finland is the only airship factory and product development laboratory in northern Europe.

Janne Hietala, CEO of Kelluu, said: “It is truly mesmerising to see the Kelluu’s airships in the air at Terrafame. We felt a strong connection with Terrafame’s commitment to positively impacting the world by reducing emissions of electromobility. What Terrafame does for mobility, we do it for aviation. Together, we provide increased safety using Kelluu’s breakthrough intelligent airship technology.”

Terrafame has one of the world’s largest production lines for chemicals used in electric car batteries on its industrial site in Finland. The plant can produce nickel sulphate for around 1 million electric cars per year, it claims. The carbon footprint of the nickel sulphate produced by Terrafame is among the smallest in the industry.

As Terraframe produces hydrogen onsite and the airships are powered by hydrogen, Kelluu has built a ground base for its airships on Terrafame’s industrial site. Kelluu will autonomously transfer its airship from its current base in Joensuu, Finland, to Terrafame’s base in Sotkamo.

In addition to Kelluu, Terrafame has multiple other partners helping to monitor its site and develop its operations and occupational and environmental safety.

Giga Metals lines up trolley assist and autonomous haulage for Turnagain

Giga Metals Corp has announced the results of a prefeasibility study (PFS) on its majority-owned Turnagain nickel-cobalt project in British Columbia, Canada, that could use both trolley assist technology, as well as an autonomous haulage system.

Turnagain is owned by Hard Creek Nickel Corp, a joint venture owned by Giga Metals (85%) and Mitsubishi Corporation (15%).

The PFS outlined annual production averaging 37,288 t/y of nickel and cobalt in concentrate over the nominal full operating rate period (years 3 to 28) based on a 30-year project life with a strip ratio of 0.4 tonnes waste per tonne of ore

It also highlighted Scope 1+2 carbon intensity of less than 1.8 tonnes of CO2 per tonne of Ni in concentrate.

The PFS builds on significant metallurgical and engineering studies and confirms the ability of Turnagain to produce high-quality nickel concentrate, Giga Metals said. It has been led and prepared by Tetra Tech Canada Inc along with input from industry expert consultants.

Giga Metals said: “The PFS demonstrates a long-life, large-scale project that will deliver high-grade nickel sulphide concentrate with no significant deleterious impurities, into commercially proven processes such as pyrometallurgical smelters or hydrometallurgical refining using pressure oxidation facilities.”

The project, Giga Metals says, has notable responsible mining characteristics beyond the low-carbon production including the following:

  • Sequestration of CO2 through naturally occurring mineral carbonation, transforming the tailings management facility into a permanent carbon mineralisation facility;
  • Safe and efficient tailings storage using centreline and downstream tailings dams in sub-aerial valley impoundment;
  • A near-neutral water balance; and
  • Being located in a well-regulated and experienced mining jurisdiction that has adopted First Nations’ rights to achieve informed consent during the permitting process.

The capital cost associated with the project has been slated as $1.89 billion with a post-tax IRR and NPV of 11.4% and $574 million at a long-term nickel price of $9.75/lb, with 78% payability for nickel in concentrate.

The Turnagain open-pit deposit will be developed using large haul trucks (227 t capacity), loaders, and electric shovels to minimise unit costs, the company says.

“Proven trolley-assist technology and autonomous haulage technology have been selected for reduced total costs and environmental footprint,” it added.

The mining operations are scheduled for a 28-year mine production period to support a 30-year processing plant operating period, and include the Horsetrail, Northwest and Duffy mineralized areas (collectively, the Horsetrail zone). The orebody is mined as a single main pit with five pushback phases through the life of mine and a small satellite pit for the Duffy zone. Overall main pit dimensions are approximately 2 km x 1.5 km.

The mine plan will deliver an annual processing plant feed rate of 32.85 Mt/y (90,000 t/d) after the installation of the second processing train in Year 1. The resource will be selectively mined with low-grade materials placed on a low-grade ore stockpile for later recovery. The maximum low-grade ore stockpile size has been reduced by 82% from the 2020 preliminary economic assessment to 34 Mt, which represents an approach that accounts for regulatory expectations to minimise stockpiling as well as practical mining operations.

Processing of Turnagain ore is conventional, Giga Metals says, with the processing plant consisting of the following:

  • A primary crusher followed by two trains of closed-circuit secondary crushing and HPGRs;
  • Two grinding trains, each comprising two closed-circuit ball mills in series;
  • Two rougher flotation trains, each comprising two banks of rougher cells;
  • Two trains of three-stage cleaning circuits plus cleaner-scavenger flotation;
  • Concentrate thickening and two trains of pressure filtration; and
  • Associated utility and reagent systems.

The processing plant will be installed in slightly offset stages to maximise the efficiency of construction and commissioning. The second processing train will be installed and commissioned parallel to the first train in the first full year of operations. The primary crusher is located adjacent to the mine to reduce haul distances and the crushed ore is conveyed to the processing facility located across the Turnagain River and above the tailings management facility. This allows for energy-efficient conveying of crushed ore and eliminates high-pressure pumping of slurries. All equipment selected is commercial-scale industry-standard, including mechanical flotation cells, the company added.

Turnagain concentrate is expected to be high grade, averaging 18% Ni and 1.1% Co, with low levels of deleterious impurities. Iron, sulphur and magnesium are expected to be within typical ranges for smelter operation, with nominally 30-35% Fe, 20-25% S and 4-6% Mg.

Getech geoscience exploration solutions boost Asian Battery Minerals’ nickel mining hopes in Mongolia

Getech, a locator of subsurface resources, says it has successfully finished an exploration project for Asian Battery Minerals, a participant in the 2023 BHP Xplor accelerator program, targeting potential nickel deposits in Mongolia.

Getech was invited by BHP to the accelerator to offer its geoscience exploration solutions to the program’s cohort. Asian Battery Minerals, targeting nickel in Mongolia, elected to contract with Getech.

Getech employed its pioneering methodologies, such as terrain and structural analysis, gravity and magnetics data analysis, to assist Asian Battery Minerals. The team provided an extensive report analysing the structural and paleotectonic elements in the exploration area of interest.

The project has been deemed successful by Asian Battery Minerals, as the results have the potential to significantly enhance its exploration strategy in Mongolia, Getech says.

Richard Bennett, Executive Chairman of Getech, said: “While we are known to have extensive experience in mineral exploration for sedimentary basin ores, this project focused on ‘hard rock’ exploration. This challenge proved that our mineral systems analysis capabilities and data extend into deeper and older deposits such as magmatic nickel. Leveraging our proprietary data amassed over 30 years and our geological exploration expertise, complemented by AI-driven analytics, we can successfully locate potential new search spaces for a wide range of minerals.”

Gan-Ochir Zunduisuren, Managing Director at Asian Battery Minerals, said: “We are delighted with the results of our partnership with Getech. Their in-depth analysis and innovative approaches have provided us with valuable insights for our nickel exploration in Mongolia.”

The BHP Xplor program is a global accelerator initiative that supports innovative early-stage mineral exploration companies in finding the critical resources necessary for the energy transition. Over a period of six months, the program has aided seven selected companies in de-risking their geologic concepts and becoming investment-ready.

GlencoreTech-AtlanticCopper

Freeport’s Atlantic Copper enlists Glencore Technology’s ISACYLE solution for waste recovery project

Glencore Technology is to help Atlantic Copper, owned by Freeport-McMoRan, to create the first waste recovery plant for metal fractions of e-material in southern Europe.

The ‘CirCular’ project will feature Glencore Technology’s ISACYLE™ technology to process 60,000 t/y of e-material, and is expected to be operational in the March quarter of 2025.

According to Atlantic Copper, the works will begin in September. The company is investing €310 million ($345 million) in the project, which will move Spain from a recycling rate of 50% to 100% of electronic material, Glencore Technology says.

The ISACYCLE-based project will recover, among other metals, copper, gold, silver, platinum, palladium, tin and nickel from what Atlantic Copper describe as waste electrical and electronic equipment or WEEE.

In 2019, Spain generated around 890,000 t of WEEE, of which only around 370,000 t were managed by authorised recyclers. The other 520,000 t of disused electrical and electronic equipment are stored in homes, end up in landfills or are exported to countries where the metals might be recovered in an environmentally unfriendly way, Glencore Technology says.

Atlantic Copper, Spain’s leading copper producer, will use ISACYCLE technology to divert that kind of waste from landfill and instead recover significant value from it.

The CirCular project is aligned with Sustainable Development Goals and with the EU’s Green Deal and the Plan of Reconstruction, as copper is among the key raw materials that Europe will need to achieve that goal of a sustainable, environmentally neutral economy.

Glencore Technology’s Manager for Pyrometallurgy and Hydrometallurgy, Dr Stanko Nikolic, said the project is expected to be the first of many to use the company’s ISACYLE technology, which is a direct evolution from its ISASMELT™ technology.

“ISACYCLE has been purposefully evolved and proven to take residual waste, including e-waste, and transform it into saleable commodities,” he said. “It’s a very scalable technology. This is a project featuring a plant toward the larger scale. But it is also a technology that works in a small scale, ideal for urban utilities and waste processing companies.”

Nikolic said the ISACYCLE technology, on any scale, can virtually eliminate landfill and instead produce recovered metals, a safe slag that can be used as a construction product, energy and clean offgas.

He concluded: “We’re proud to be able to work with such an innovative company as Atlantic Copper. They’re building a major milestone for the region and what will become a showcase for others.”

Eriez Magnetic Mill Liners boost safety, energy efficiency and durability at Nexa Resources mine

A new report from Eriez® reveals how a set of Magnetic Mill Liners (MML) are significantly improving safety standards, energy efficiency and operational longevity at a Nexa Resources operation in Peru.

The MML is a wear-resistant steel-encased magnet that combines the best qualities of steel and magnetic liners, according to Eriez.

The report highlights the superiority of MMLs over conventional liners by describing the numerous benefits these advanced liners offer. Each MML is composed of individual sections that are much lighter than traditional liners, facilitating safer and easier installation procedures, Eriez says. Weighing only 20-40 kg per section, the MML eliminates the requirement for specialised cranes within the mill, streamlining operations and enhancing safety protocols. Nexa even credits the MML installation with contributing to the company’s achievement of a major Peruvian safety award.

There are considerable environmental advantages associated with the implementation of MMLs, according to Eriez. Heavier steel liners require significant fuel consumption for transportation and material handling while lightweight MMLs can be installed by hand. Additionally, Nexa reports a significant reduction in noise levels with the MML, creating a more favorable work environment overall.

The case study also highlights the energy-efficient aspects of MMLs. In traditional ball mills, small ball chips do not contribute to the grinding process, leading to wasted energy. However, MMLs effectively eliminate the presence of small ball chips, resulting in energy savings of up to 11% during the grinding process, according to Eriez.

The exceptional durability of MMLs is another standout feature discussed in the report. Unlike conventional liners that necessitate frequent replacement, the Eriez MML has garnered a track record of success through many installations in diverse mining operations worldwide, including iron ore, copper, nickel and gold mines, as well as other non-ferrous mines. These installations provide evidence that MMLs outlast rubber or metallic liners by two to three times, Eriez states.

Australia and Canada ‘coopertition’ to be highlighted at IMARC

Australia and Canada have a lot in common when it comes to mining and resources and are critical to the industry’s global transformation. While both countries are mining super-powers in their own right and are supplying a significant percentage of the resources needed for the global energy transition, they are also using their leadership to guide the global industry’s transition to a sustainable future, according to the organisers of IMARC.

Australia and Canada are recognised as the two largest exploration destinations in dollar value terms, with stock exchanges that reflect the enormous contribution mining and resources makes to each economy.

Similarly, both countries offer substantial and relatively untapped resources, conducive investment environments, supportive governments and well-established plans for the development of the critical minerals needed for the global energy transition.

Because both have a long history of operating in complex environmental and social contexts, they also have extensive experience in sustainable practices and meaningful engagement with First Nations and local communities.

Leading the transformation

This strong shared focus on ESG principles and commitment to contemporary mining practices have seen Canada and Australia emerge in the past decade as key leaders in the global industry’s response to the challenges facing mining globally.

Carl Weatherell, CEO of the Canada Mining Innovation Council (CMIC), says the leadership of the mature mining countries such as Canada and Australia are critical to achieving the mining industry’s global environmental goals.

“In order to reduce the mining industry’s energy use, water use and environmental footprint by 50% by 2027, the major players have not only an opportunity but a responsibility to work together on innovations that reduce waste, lower costs and mitigate environmental impacts across all aspects of exploration and development,” he says.

“Canada and Australia are global leaders in the mining industry with decades of experience and innovation behind them, so they have a natural role in leading mining’s transformation to a more responsive, sustainable and resilient industry.

“It’s incumbent on the two countries and their companies to work together to redefine and rethink the future of the industry in terms of in terms of how we collaborate, who we collaborate with and what we work together on.

“Coopertition”

Weatherell says while the global mining industry is competitive by nature, it also has a shared destiny, and, by necessity, has pursued active collaboration on shared challenges, particularly around decarbonisation.

“We call this ‘coopertition’ and it is one of the reasons events like IMARC are so important when it comes to pursuing these shared goals.”

He believes Canadian and Australian mining operators and innovators have long understood the need for a cooperative effort toward a more efficient, sustainable industry, recognising these goals can only be achieved if all stakeholders sign up to a clear vision for the future and work towards it together.

“The mining and resources industries in Canada and Australia are leading the way when it comes to embracing the decarbonisation challenge and lending their expertise and experience to countries where they invest,” he said.

“As we like to say, net zero is easy; zero is hard. But through exporting their leadership and best practice globally, Australia and Canada are playing a key role in meeting the challenge.”

The same, but different

From an investor perspective, Canada and Australia are considered low-risk jurisdictions, with policies and regulatory settings that welcome, encourage and incentivise exploration and development, particularly of the resources needed to fuel the global energy transition.

Both countries share a similar legal heritage, providing a level of comfort when it comes to assessing risk and a pragmatic approach to managing the energy transition.

Principal and Founder of BRIDGE©, Siri C. Genik, says while both are young countries who offer investors stable jurisdictions, strong legal frameworks and respect for the rule of law, there are also differences which can impact on the risk appetite for investors.

Genik said: “We certainly see a consistent approach to issues such as health and safety, environmental and stakeholder management, EDI, governance and more broadly sustainability. Both countries demonstrate best practices in respect of human rights and a commitment to managing the industry’s carbon footprint.

“There are common core values and opportunities for greater investment, but there are differences between both countries, including permitting processes and timelines, and different risk appetites and investment approaches.”

She says Australian companies – from mine operators to exploration and METS companies – are looking to Canada as a key source of the critical minerals needed for a renewable future such as copper, nickel, lithium and graphite.

One such company is the Andrew Forrest-backed Wyloo Metals, which is expanding its operations in Canada with a focus on nickel and copper.

Wyloo Metals CEO, Luca Giacovazzi, says the company’s investments, particularly in the establishment of a Future Metals Hub in Ontario, underscore his belief in Canada’s long-term potential to be a globally relevant producer of reliable and responsibly sourced battery metals.

“Canada has a once-in-a-generation opportunity to establish itself as a major player in the new economy,” Giacovazzi said. “Our proposed Future Metals Hub provides the cornerstone for a globally relevant battery material supply chain in Canada, while creating economic opportunities for local communities to thrive.”

But according to Genik, while investment in Canada is at healthy levels, fewer Canadian companies have been investing in projects in Australia. She said this may be a reflection of a global mining and resources industry in transition, with older investment paradigms being challenged and new alliances being formed, particularly around resource supply resilience.

Despite this, she said the shift in globalisation also represents opportunities for Canadian and Australian companies.

She said: “There are new relationships and alliances being formed as nations are increasingly wanting to stand on their own and – to the extent they can – be more self-reliant and work with partners with shared values.

“It’s not just the Russia-Ukraine situation that is driving this, but you’re also seeing similar trends across Asia and South America, creating new opportunities for investment for countries like Canada and Australia.

“As the EU is striving to ensure increased sustainable value chains for all products being included in the goods they manufacture, it has been an important game changer. They have adopted a number of very stringent sustainability requirements and regulations that all players in the industry will need to meet if they want their products to be included in products manufactured or assembled in the EU.

“Other nations are striving to also meet these requirements, and again, Australian and Canadian companies can talk to.

“The appetite is still there, the investors continue to seek a return on their investment, but not at any cost, and not always seeking instant gratification. Markets are much more fickle today and more complex, with geopolitics creating challenging dynamics for investors. We are seeing investor expectations go beyond the value of the asset and focussing on a wholistic approach to the company. Investors want to make sure that they’re understanding and including these non-technical risks and that they understand what impact and purpose is.

“The opportunity for Canada and Australia is to continue to position themselves as sustainable leaders to be successful in this era of shifting and transition.”

Canada comes to IMARC 2023 in Sydney

Canada will continue its long association with the International Mining and Resources Conference (IMARC) being held in Sydney, Australia this year with a delegation promoting the country’s vision to be the leading mining nation in the 21st century.

The delegation promises to be the largest ever and includes Canadian companies showcasing their products and services to the global mining and resources market, particularly in the Asia Pacific region, and a team from Global Affairs Canada promoting investment opportunities for companies to establish or expand their operations in Canada.

Senior Investment Officer at Global Affairs Canada, Bertrand Raoult, said Canada provides a highly competitive value proposition for investors.

Raoult said: “Canada is a global mining leader, producing over 60 minerals and metals and home to advanced exploration projects for lithium, rare earths and other critical minerals the world needs for a cleaner future. We have strong mineral exploration, mining and mineral processing sectors and these are attracting downstream manufacturing, as we are moving toward vertically integrated supply chains.”

Raoult said Canada is one of the most mining-friendly jurisdictions in the world and supports the sector through generous programs and incentives, competitive tax policies, a rich innovation ecosystem and Free-Trade agreements that give investors access to more than 50 markets.

“But it is perhaps our environmental, social and governance expertise that truly sets Canada apart from competitors,” Raoult said. “Thanks to generous programs, our minerals and metals sector industry is adopting clean and cutting-edge technologies to make mining and processing greener, safer, smarter and more efficient.

“As a result, Canada has one of the lowest ESG risks across global mining projects on average performing particularly well in categories such as water usage, community engagement, conservation and governance.”

The Canadian Critical Minerals Strategy highlights the importance of mining and resources to the nation’s global competitiveness and prosperity. The industry accounts for 626,000 direct and indirect jobs and is the largest employer for Indigenous Peoples and 19% of Canada’s total domestic exports, and approximately $47 billion in mineral production come from mines and quarries across all regions.

Raoult said: “Canada’s vision is to responsibly develop its geological resources, including critical minerals, advance the participation of indigenous peoples, ensure sustainable mining and rehabilitation practices, drive world-leading innovation, build community support for sustainable mineral development and attract underrepresented groups to this high-tech sector that is key to a green economy.”

The International Mining and Resources Conference (IMARC) is returning to the ICC Sydney from October 31-November 2, 2023. International Mining is a media sponsor of the event and will be attending.

Murray & Roberts Cementation hits the accuracy mark on Platreef ventilation shaft development

Murray & Roberts Cementation is helping Ivanplats deliver the Platreef project in South Africa through the provision of drilling services at the ventilation shaft.

The dual purpose use of the new ventilation shaft at Ivanplats’ Platreef project required extreme pilot hole accuracy, according to Murray & Roberts Cementation.

The vent shaft, or Shaft 3, which meets horizontal development at a depth of 950 m, also needs to be equipped with a hoist and rope guides to carry personnel in the case of emergency. The rope guides for the hoist require the shaft to be drilled vertically within tight parameters. According to Dirk Visser, Senior Project Manager at Murray & Roberts Cementation, this meant offering the client minimal deflection of the pilot hole using a continuous steering tool.

“Using the well-proven German-designed-and-manufactured Micon, Rotary Vertical Drilling System (RVDS), we were able to achieve the set parameters required for a rope guide installation,” Visser says. “The worst deflection was no more than 0.05% – or 452 mm – and, by the time we bottomed out, the deviation was only 0.02% or 226 mm off centre over a final drilling depth of 950 m.”

Micon’s specialised RVDS is a continuous self-steering tool working on a close loop system which steers the tool using two-axis gyro inclination sensors that activate the hydraulic steering system. It can determine in real time if there is any deviation from the vertical course, and communicate this information to the operator on surface via pressure waves in the drilling water by converting the pressure waves into information through transducers, according to the company.

The Murray & Roberts Cementation drilling team not only ensured accurate directional results, but also optimised the performance of the RVDS. By keeping an eye on key variables like voltage levels and water cleanliness.

Visser highlights that drilling to these tolerances with this highly technical equipment demands a very experienced team. On this project, for instance, the most ‘junior’ person has worked with the RVDS for 15 years, while another member has 28 years of experience in raiseboring.

Platreef is owne 64% by Ivanhoe Mines. A 26% interest is held by Ivanplats’ historically disadvantaged, broad-based, black economic empowerment (B-BBEE) partners, while a Japanese consortium of ITOCHU Corporation, Japan Oil, Gas and Metals National Corporation, and Japan Gas Corporation, owns a 10% interest in Ivanplats.

In May, Ivanhoe Mines said that underground development work had been focused on the vertical development of waste passes between the 750-m, 850-m and 950-m levels, and lateral development towards the orebody, as well as lateral development required for underground infrastructure on each level including access to the bottom of Shaft 3 on the 950-m level. Shaft 3, with a diameter of 5.1 m, is currently being reamed with approximately 150 m of 950 m completed to date, it said. Planned completion was scheduled for the December quarter of 2023.

Platreef’s commercial production is expected in 2024, with Shaft 2 now expected to be commissioned in 2027. The initial scope of the phased development plan is to fast-track Platreef into production, starting with an initial 700,000-t/y underground mine using the existing Shaft 1 and a new on-site concentrator. Platfreef, Ivanhoe says, is projected to be Africa’s lowest-cost producer of platinum-group metals, nickel, copper and gold.

Blackstone Minerals engages Metso for nickel, cobalt refinery plans in Vietnam

Blackstone Minerals Ltd has announced the inclusion of Metso as the technology supplier for the definitive feasibility study of the company’s pCAM (precursor cathode active material) processing plant in its Ta Khoa refinery in Vietnam.

Metso is already involved in the design of the pCAM plant and will also conduct independent pCAM test work to validate the nickel and cobalt sulphates generated during the pilot program for suitability in pCAM generation, the OEM says.

Metso is currently designing the pCAM plant with Wood, providing experience and engineering technical support.

Scott Williamson, Managing Director at Blackstone Minerals Ltd, said: “Blackstone intends to leverage off Metso’s engineering services and know-how into the pCAM facility design, thus de-risking the project and confirming Blackstone’s intent to be a real player in the pCAM space. Securing another world leader to the Ta Khoa project is yet another jigsaw piece in the battery value chain puzzle. Blackstone continues to look forward to project success as it marches towards developing the greenest and most resilient nickel business in the world.”

Blackstone highlighted the OEM’s high value technology in the context of the pCAM facility design, such as the modular OKTOP® reactors (with industrial references for scaling-up pCAM precipitation processes), Larox® filtration technologies and Courier® HX continuous product quality analyser equipment to enable precision control and real-time optimisation.

“Metso has shown that precursors precipitated with OKTOP reactor technology are proven to meet the required chemical and physical properties for high-performance cathode active material,” it said.

Rudi Rautenbach, Director, Minerals Sales, Asia-Pacific, Metso, said: “We are confident that our experience in nickel processing and battery metals technologies will contribute positively to the project. Many of our offerings that are planned to be used in this project are selected from our range of Planet Positive products, which are demonstrably more energy or water efficient than the industry benchmark or Metso’s previous generation products in the market, to help our customers cut their CO2 emissions and/or to achieve other sustainability priorities. We believe these are all in line with Blackstone’s objectives towards developing the greenest and most resilient nickel business in the world.”

Metso says it provides sustainable technology and equipment for the entire lithium, nickel, and cobalt production chain from the mine to battery materials and black mass recycling with project scopes ranging from equipment packages to plant deliveries. Metso has its own pCAM testing facilities.

A February 2022 prefeasibility study on the 90%-owned Ta Khoa project outlined first concentrate production in in 2025, ramping up to nameplate design of 8 Mt/y in 2027. It expected a steady-state average annual nickel output (recovered in concentrate) of circa-18,000 t/y and steady-state average annual concentrate production of circa-225,000 t/y. The project also came with a steady-state refining capacity of 400,000 t/y, with first production of NCM811 precursor material commencing in early 2025.