Tag Archives: cobalt

Lifezone Metals edges closer to base metal refinement plan at Kabanga nickel project

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Lifezone Metals Limited says it has received a Multi-Metal Processing Facility Licence from the Government of Tanzania to refine nickel, copper and cobalt from its Kabanga nickel project at Kahama, located beside Barrick Gold’s former Buzwagi gold mine.

The Kabanga nickel project is in northwest Tanzania and is believed to be one of the world’s largest and highest-grade undeveloped nickel sulphide deposits, Lifezone says. The Kahama Multi-Metal Processing Facility site is around 340 km southwest of Kabanga. Lifezone’s subsidiary, Tembo Nickel Corporation Ltd is the operating entity for Kabanga and Kahama, and is 16% owned by the Government of Tanzania.

Notably, through the application of Lifezone’s Hydromet Technology, Kabanga and Kahama will be able to produce finished metals in-country, potentially reducing capital and operating costs, as well as reducing costs associated with transport of concentrate or other intermediate products. Full in-country beneficiation will contribute towards local content optimisation and eventually national development through the principle of equitable sharing of economic benefits, Lifezone says.

A definitive feasibility study for Kabanga remains on track for completion by the September quarter of 2024.

This licence news came alongside a separate announcement involving the signing of a binding subscription agreement for the issuance of $50 million of convertible debentures with a consortium of marquee mining investors. These are on top of BHP, Glencore and BlackRock as investors in the business. The proceeds are going towards development of Kabanga.

Lifezone Metals’ Hydromet Technology is a transformational method of metals recovery that has the potential to replace smelting for base and precious metals refining, according to the company. Pyrometallurgical smelting is one of the largest contributors to pollutive gas emissions, greenhouse gases and energy inefficiency in the production of metals products and the use of Hydromet Technology will help to unlock nickel, copper and cobalt from Kabanga, providing lower cost, lower emissions (relative to smelting) and traceable metals for electric vehicle batteries and to support the global energy transition, it says.

Chris Showalter, Lifezone CEO, said: “The ongoing level of commitment and support that we have received from the Government of Tanzania in the advancement of our Kabanga nickel project is exemplary. With the receipt of our Kabanga Special Mining Licence, and now the Kahama Refinery Licence, we have a clear path to delivering a direct-to-metal solution and enabling the production of nickel, copper and cobalt in Tanzania and by Tanzanians.”

The issuance of the Kahama Refinery License follows the formal gazettement of the Special Economic Zone (Declaration) Notice, 2024, which declared the Buzwagi Mining Area, within Kahama District in Shinyanga Region, a Special Economic Zone. The Kahama Refinery will be located within the Special Economic Zone, which will provide certain tax and other economic benefits for the project, according to Lifezone.

In addition, the Kahama Refinery stands to benefit from access to a highly trained workforce and legacy infrastructure from the Buzwagi gold mine, including existing camp and office buildings, regional power connections, airstrip, road connections and railway in near proximity, the company says.

This “plug-and-play” industrial hub brings significant project execution and capital cost benefits, as well as turning a past-producing mine liability into a long-term asset. Lifezone will not be taking on any legacy liabilities in relation to the closure of the Buzwagi gold mine, it added.

Kamoa-Kakula-Ivanhoe

Kamoa-Kakula copper complex in DRC to install MECS sulphuric acid plant

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The Kamoa-Kakula copper complex, a joint venture between Ivanhoe Mines, Zijin Mining Group and the government of the Democratic Republic of the Congo (DRC), has partnered with Elessent Clean Technologies to install a new 2,500 t/d smelter off-gas MECS® sulphuric acid plant.

In conjunction with global EPC partner, China Nerin Engineering Co. Ltd, the new acid plant will be part of a new 500,000 t/y direct-to-blister flash copper smelter that is under construction at Kamoa-Kakula, as part of its Phase 3 expansion. Upon completion of the Phase 3 expansion, Kamoa-Kakula is projected to be the fourth largest copper operation globally.

The MECS sulphuric acid process incorporates state-of-the-art technologies, such as the MECS pre-conversion technology and the MECS DynaWave® gas cleaning technology. DynaWave scrubbers, the gold standard in gas cleaning applications, according to Elessent, clean and condition the upstream off gas of the smelting furnace at the sulphuric acid plant. The MECS pre-conversion technology is a novel approach for processing off-gas streams with elevated sulphur dioxide concentrations while consuming significantly less power, according to the company.

The MECS sulphuric acid technology has been in use for nearly a century in the phosphate fertiliser, non-ferrous metals (leaching & smelting), oil refining and general chemical industries. MECS technologies feature breakthrough solutions, many of which have revolutionised the performance, quality and cost-effectiveness of customer operations, according to Elessent. They include MECS heat recovery systems (HRS™), MECS SolvR® regenerative SO2 scrubbing and MECS MAX3™ sulphuric acid production technology. Integrated into these MECS technologies are specialty products such as catalysts, Brink® mist eliminators, DynaWave scrubbers, ZeCor® corrosion resistant alloy products and acid coolers, all of which are specifically designed for the most demanding operating environments. The MECS technology has more than 1,000 sulphuric acid plant licenses and projects.

David Mitchell, Kamoa-Kakula’s Senior Project Manager for the smelter project, said: “At Kamoa-Kakula we aim to set a new industry standard by being the greenest major copper mine in the world. It helps that DRC not only has an incredible mineral endowment, but also has an abundance of clean hydroelectricity to power its mining industry. However, we also need the right technology to extract the copper in a sustainable way. By using the MECS acid plant design and its incorporated technologies, our new plant helps achieve our path to net zero.”

Eli Ben-Shoshan, CEO, Elessent Clean Technologies, said: “Kamoa-Kakula is one of the world’s fastest-growing major copper operations. Partnering with NERIN on the mine’s greenfield smelter complex is very exciting. It is a great honour to work with the owners of what is anticipated to be one of the greenest major copper operations on the planet.”

The Kamoa-Kakula copper complex has been in commercial operations since July 2021. The operation is currently undergoing its Phase 3 expansion, which will increase copper production to over 600,000 t/y copper from the September quarter of 2024.

Sakatti-FutureSmart Mining

Anglo American highlights next FutureSmart Mining advances at Woodsmith, Sakatti

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Anglo American has provided its latest sustainability performance update, highlighting a number of technological advancements the company is looking to take at its in-development Woodsmith polyhalite mine in the UK and its exploration asset, Sakatti, in Finland.

Anglo American says it has an integrated approach to sustainability in project development, helping secure its ability to deliver responsible long-term growth in future-enabling metals and minerals.

The company is moving towards its goal of carbon neutral operations by 2040, evolving its pathways as it progresses, learns and as technologies develop.

At the end of 2022, its Scope 1 and 2 emissions were 21% below the peak levels of 2019 – a significant reduction that, Anglo American says, reflects its transition to 100% renewable electricity supply across its South America operations, with Australia to follow in 2025.

In southern Africa, it is working in partnership with EDF Renewables to build a 3-5 GW renewable energy ecosystem of wind and solar generation capacity, designed to tackle its largest remaining source of Scope 2 emissions and support energy reliability and grid resilience while catalysing broad socio-economic opportunities.

While Scope 3 emissions reduction is largely dependent on the decarbonisation of Anglo American’s value chains and the steel industry, in particular, it is progressing towards its ambition to halve these emissions by 2040.

Tom McCulley, CEO of Anglo American’s Crop Nutrients business, provided several references to Quellaveco, Anglo American’s most technologically-advanced mine that uses automation, a remote operations centre and high levels of digitalisation, when looking at its FutureSmart Mining™ plans at Woodsmith, a 5 Mt/y operation that could ramp up to 13 Mt/y.

McCulley, who also led development of Quellaveco, said Woodsmith will be developed as a benchmark for sustainable mining. This includes plans for the mine to be a low carbon, low water and low waste operation, with no tailings generation and with a minimum impact design.

“We hope this can show a way of how mining can be done in the future,” McCulley said of this approach at Woodsmith.

When it comes to Sakatti, Alison Atkinson, Projects & Development Director, said the development could end up being “our next greenfield project”.

The project is a rich multi-metal deposit with not only copper, nickel and cobalt resources, but also platinum, palladium, gold and silver.

“High concentrations of metal combined with consistency of the mineralisation between the boreholes make Sakatti a unique deposit,” Anglo American says of the project. Its resources are estimated to be sufficient for mining operations to last more than 20 years.

Atkinson said Sakatti is being designed as the next generation of FutureSmart Mining, building on what it has learned from Quellaveco and Woodsmith, particularly when it comes to ensuring there is minimal surface footprint and “using technology and innovations to deliver even better sustainability outcomes”.

She added: “Sakatti is set to be a remotely operated, low carbon-underground mine with an electric mining fleet using technology and mining methods that will create zero waste and enable high degrees of water recycling, contributing to a sustainable supply of critical minerals.”

The company also sees the potential to use sorting technologies for coarse particle rejection and material recovery opportunities.

ERG breaks ground on COMIDE copper-cobalt hydromet plant in DRC

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Eurasian Resources Group (ERG) in Africa has broken ground on a hydrometallurgical plant at its COMIDE asset to produce copper and cobalt in the Democratic Republic of the Congo (DRC)

The plant is designed for phased operational output, with expansion potential to produce approximately 120,000 t/y of copper cathode and 15,000 t/y of cobalt hydroxide.

COMIDE comprises some of the largest known copper and cobalt resources still to be developed globally, according to ERG. Following a technical study, the development potential of its resource base and production capacity were established, paving the way for the project at hand. The COMIDE project includes the construction of a hydrometallurgical plant, an extensive exploration and drilling program, as well as mine development – backed by a total investment of around $800 million.

The start of works was marked by a groundbreaking ceremony held at COMIDE in Lualaba Province on October 12, 2023.

The hydrometallurgical plant, which is expected to be complete by the end of 2025, will be constructed in three phases. During the first and second phases, the plant will produce an estimated 40,000 t of copper cathode and 7,000 t of cobalt hydroxide annually. The third phase is projected to yield up to 80,000 t of copper cathode and 14,000 t of cobalt hydroxide per annum, with the potential for further expansion to reach a production capacity of 120,000 t of copper cathode a year.

Speaking on behalf of ERG Africa’s Acting Chief Executive Officer, Sergei Verbitckii, Chief of Staff, Joachim Nzuzi, stated: “The design of this project was developed with innovation and sustainability top of mind. The plant will be equipped with the latest technology to ensure that we maximise recovery, while reducing the impact on the environment.”

The ERG Clean Cobalt & Copper Framework – which guides production of these two critical minerals – will be extended to COMIDE.

Nzuzi added: “Aligned to ERG’s commitment to environmental stewardship, we are not only celebrating the building of a plant and the development of a mine today. We are also committing to a greener tomorrow, not only through our approach to responsible mining and producing the critical mineral required for the green energy transition, but also by restoring the ecosystems on our site and in the surrounding areas. Thus, before we have even started construction work, we teamed up with the University of Lubumbashi to establish a nursery that will provide the trees we will plant to ensure that after our mining activities eventually cease, the site will house many more trees than before we started the project. We already have 700 trees in our nursery and are currently seeding 2,000 more.”

During the development and construction phase of the project, COMIDE will provide approximately 2,000 direct and indirect jobs for DRC nationals, predominantly hired from its surrounding communities, ensuring that its community members will be the primary beneficiaries of COMIDE’s activities, while contributing to the broader economic upliftment of the country.

Once COMIDE becomes operational, with an estimated initial 20-year life of mine, its surrounding communities will stand to benefit through direct and indirect employment and supplier opportunities, the communities’ contribution fund and royalties towards social development initiatives, in addition to the projects outlined in its community development plan agreement [Cahier des Charges] and other social contribution initiatives contemplated to be developed in the context of the operation, ERG says.

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

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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.”

Rio-BinghamCanyon

Fortune Minerals, Rio Tinto join forces to improve cobalt and bismuth recoveries

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Fortune Minerals and Rio Tinto have agreed on a collaboration to develop technology that will improve recovery of the critical minerals cobalt and bismuth.

Under a Memorandum of Understanding (MoU) signed between the companies, testing will be done at Rio Tinto Kennecott’s integrated copper mining and smelting operations in Utah and at Fortune’s planned Alberta Refinery.

The partnership aims to maximise the value of critical mineral supply chain investments and increase Fortune’s planned cobalt and bismuth refining operations to process co-product streams of the minerals recovered from the Kennecott smelter, Fortune said.

In 2020, the Canadian and U.S. governments signed a Joint Action Plan on Critical Mineral Collaboration to enable more North American production of the critical minerals needed in new technologies. Cobalt and bismuth are both included in this list and are used for sustainable energy resources. Fortune and Rio Tinto are pleased to establish this partnership and work together to expand North American supply chains, they said.

Robin Goad, President and CEO of Fortune Minerals, said: “Working with Rio Tinto to recover metals from their co-product streams is part of our corporate strategy to expand production of critical minerals, and we are excited to be working with one of the world’s premier mining companies on the first of these opportunities. This collaboration could provide a solution to support greater production of the metals needed for the energy transition and growing sustainable economy.”

Rio Tinto Kennecott Managing Director, Nate Foster, commented: “We are committed to find better ways to provide the materials the world needs to grow and decarbonise. We are enthusiastic about this partnership with Fortune Minerals as we continue looking at our waste streams to develop new, sustainable sources of critical minerals here in North America.”

For 120 years, Kennecott, in Utah, has been mining and processing copper and other minerals including gold, silver, molybdenum and tellurium from the rich ore body of the Bingham Canyon mine (pictured).

Fortune is developing its 100%-owned, vertically integrated NICO cobalt-gold-bismuth-copper project in Canada. This asset is comprised of a planned mine, mill and concentrator in the Northwest Territories and a related hydrometallurgical refinery in Alberta where concentrates from the mine would be processed.

Fortune and Rio Tinto are working together to assess different process methods and technology options to recover the bismuth and cobalt contained in Kennecott’s smelter waste streams. This includes assessing the effectiveness of blending Rio Tinto’s intermediate products with NICO project concentrates and conducting batch recovery tests using Fortune’s refinery flow sheets.

Giga Metals lines up trolley assist and autonomous haulage for Turnagain

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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.

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

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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.

Gradiant’s process water solutions to be used at SLB, Rio Tinto operations

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Gradiant, a global solutions provider and developer for advanced water and wastewater treatment, has announced partnerships with SLB (formerly Schlumberger), Rio Tinto and an Australia-based global mining company to, it says, improve productivity and sustainability in the mining industry with a focus on reducing carbon and water footprints.

The projects are in the US and Western Australia for resource recovery of critical minerals and industrial process water.

Gradiant’s collaborations with SLB and the Australia-based global mining company target the recovery of valuable metals such as lithium, nickel and cobalt. The mining of these materials is highly complex and water intensive. Moreover, with increased market demand and environmental regulations, businesses must identify cost-effective and sustainable technologies. Gradiant’s technologies enable sustainable, efficient and economical water governance through end-to-end customised solutions, it says.

Gradiant’s work with SLB integrates Gradiant’s technologies to concentrate lithium solution with SLB’s direct lithium extraction (DLE) and production technology process – allowing reduced time-to-market and environmental footprint for lithium extraction. The solution enhances the impact of the sustainable lithium extraction process by enabling high levels of lithium concentration in a fraction of the time required by conventional methods while reducing carbon emissions, energy consumption and capital costs compared with thermal-based methods, the company says.

Back in October, Gradiant and Schlumberger entered into a partnership to introduce a key sustainable technology into the production process for battery-grade lithium compounds.

For Rio Tinto, Gradiant will deliver a new facility in Western Australia to replace ageing facilities by employing the company’s proprietary RO Infinity membrane technologies and SmartOps Digital AI into existing mining operations. Gradiant has introduced two chemical-free technologies into operations to minimise chemical consumption and waste discharge, it said.

Lastly, Gradiant’s RO Infinity and SmartOps technologies will concentrate complex wastewater from nickel and cobalt production at a new facility in Western Australia for a global mining company, resulting in up to 75% cost savings with lower carbon and water footprints compared with conventional technologies, it says.

Prakash Govindan, COO of Gradiant, said: “Mining is a uniquely complex industrial sector with challenges of remote locations, large volumes of waste, wide fluctuations in water quality and the high-value end-product that demands relentless design and operations efficiencies. The real opportunity for water technology in the mining industry is resource recovery in wastewater coupled with machine learning AI. We are excited to work with the world’s leading mining operators to enter a new era of sustainable resource recovery. This is made possible by Gradiant’s deep understanding of the complex chemistry that underlies the production processes, which is then operationalised by machine learning digital technology.”

Vale partners with MIRARCO on bioleaching, bioremediation processing project

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Vale Energy Transition Metals, a leading global supplier of nickel, copper, cobalt and platinum group metals, says it is moving to accelerate commercial recovery of critical minerals from mine waste in partnership with the Mining Innovation, Rehabilitation, and Applied Research
Corporation (MIRARCO) at Laurentian University, in Canada.

As part of efforts to reduce mine waste and capture additional value from mined material, Vale has committed C$875,000 ($635,769) over five years to MIRARCO to support a new industrial research chair program in biomining and bioremediation. The announcement was made during the Prospectors & Developers Association of Canada 2023 Convention, in Toronto, Canada.

The industrial research chair program, led by Dr Nadia Mykytczuk (pictured in the centre), will develop, pilot and work towards commercialising bioleaching and bioremediation processes including efforts to recover nickel and cobalt from low-grade pyrrhotite tailings and other waste.

Luke Mahony, Chief Technical Officer at Vale Energy Transition Metals (pictured second from left), said: “This builds on our extensive R&D history and proven track record of lab-to-plant process development and represents a significant opportunity for waste-stream reprocessing here in Ontario. We see this as a triple-win, with potential to reduce liabilities, accelerate commercial recovery of critical minerals and capture additional value from mined material.”

The Government of Ontario will also contribute C$750,000 through the Northern Ontario Heritage Fund Corp. to support this industrial research chair program.

Greg Rickford, Minister of Northern Development (pictured second from right), said: “The new and improved Northern Ontario Heritage Fund Corporation is supporting innovative solutions in the resource extraction sector that will change the way we see mining traditionally. By partnering with Vale and Laurentian University, we are committing to Made in Ontario solutions that will reduce mine waste and enhance value for materials already involved in the mining process.”

Dr Mykytczuk, President and CEO of MIRARCO, said: “This funding and collaboration will accelerate the development of new tools to help us extract value from wastes, producing the metals we need in an environmentally sustainable way.”

Vale Energy Transition Metals is one of the world’s largest producers of high-quality nickel and an important producer of copper and responsibly sourced cobalt. With headquarters in Toronto, Canada, and operations in Newfoundland & Labrador, Ontario, Manitoba, Indonesia and Brazil, the business delivers critical building blocks for a cleaner, greener future.

MIRARCO Mining Innovation is in its 25th year and has been a leader in the development of innovative solutions in response to the needs of the mining industry. Located in Sudbury, Ontario, MIRARCO works collaboratively with industry, private sector, government, academia, and community stakeholders, building fit for purpose teams to effectively deploy knowledge, technology, and sustainable practices across the mining life cycle.