Tag Archives: solvent extraction

Metso bolsters filtration offering with Glass Media filter

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Metso is expanding its polishing filtration product family with the addition of the GM (Glass Media) filter, designed to, the OEM says, remove insoluble organics in battery metals processes by using very efficient and patented coalescing media.

With its cost-effective and modular design, the GM filter increases the recovery and recycling of valuable process chemicals.

Mika Vuorikari, Director of Industrial Filtration at Metso, said: “The GM filter is an ideal choice when insoluble organics need to be removed and recovered. Thanks to its efficient coalescing media for hydrometallurgical applications, the GM filter can perfect the removal and recovery of insoluble organics at a much higher velocity than the traditional coalescing medias. In applications where an Active Carbon (AC) filter needs to be used for dissolved organics adsorption from the process, the AC filter’s efficiency and media lifetime can be improved by utilizing a GM filter in front of it.”

The Metso GM filter is designed for variable sizes of process streams and its modular design makes it easy to expand to meet plant process requirements. It also optimises back washing with filtered process liquid and circulates back to the process, ensuring that water consumption is kept to a minimum. The low pumping pressure of the filter also results in lower energy consumption.

Together with the Dual Media (DM) and Active Carbon (AC) filters, Metso has a complete filtration portfolio for SX electrowinning and crystallisation processes. Strong know-how and experience from the hydrometallurgical industry allows Metso to design industry-leading filtration solutions for battery minerals processing. Metso has delivered more than ninety DM and AC filters to metallurgical SX processes globally.

Metso expands modular VSF X solvent extraction offering

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Metso has expanded its solvent extraction offering with a wider capacity range and improved features, and is now also introducing the VSF® X solvent extraction plant with extended scope.

The modular VSF X plant, part of Metso’s Planet Positive offering, allows copper, cobalt, nickel and manganese producers, among others, to purify desired metals from the leach solution in a safe and sustainable manner. The VSF X technology can also be used in battery black mass recycling processes.

Olli Siltala, Product Manager for the VSF X solvent extraction plants at Metso, said: “Solvent extraction is a crucial step in the production of essential battery metals and is gaining wider ground in hydrometallurgy applications. This is driven by the growing demand for higher purity metals and the increasing use of minerals to empower the energy transition. Our customers are seeking reliable and environmentally sound production processes with lower plant life cycle costs. Metso’s VSF X solvent extraction technology meets these needs and enables an efficient and economical solvent extraction process step for various orebodies and recycled battery black mass.”

Siltala added: “Metso is an expert one-stop shop for solvent extraction technology. We can provide customers with a tailormade production process based on professional testing and piloting. The modularised plant offers excellent scalability and high quality with fluent logistics and fast-track delivery. The integrated plant consists of Metso’s highly productised proprietary equipment, like the VSF X mixer-settler, VSF X organic and crud treatment unit; Dual Media, Activated Carbon and GM filters, as well as new digital products such as DispersionSense™ and OA Sense™ topped up with process guarantees. We can also provide a broad range of services along with digital solutions to ensure optimised lifecycle performance of the plants.”

Metso has been developing solvent extraction technologies and delivering both equipment and processes for several decades. VSF solvent extraction technology is used in the largest copper solvent extraction facilities across the globe, according to the company. It has over 50 operational references for the VSF solvent extraction plants and 10 for the modular VSF X plants.

Metso to deliver VSF X solvent extraction tech to Chinese nickel plant

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Metso says it has been awarded an order to deliver solvent extraction technology for a nickel plant in China; an order that usually banks the OEM revenue in the range of €15-20 million ($16.4-21.9 million).

Metso’s scope of delivery consists of the VSF® X solvent extraction process for the production of a battery-grade nickel sulphate solution.

In addition, Metso will deliver multiple polishing filters, a Courier® 6X HX analyser, as well as spare parts and advisory services. Prior to this order, Metso conducted the concept study and process test for the project. Basic engineering for the project is ongoing.

The modular Metso VSF (Vertical Smooth Flow) X plants offer lower lifetime costs, significantly shorter lead times, and sustainable Planet Positive life-cycle technology built on decades of experience in solvent extraction, Metso says. Metso’s offering includes optimised solutions, complete plants and services through innovative leaching, solvent extraction and electrowinning technologies.

Freeport furthers its leading copper leaching excellence

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Among the new applications, technologies and data analytics Freeport-McMoRan is advancing as part of a plan to improve copper recovery from its leach processes in North and South America is Jetti Resources’ patented catalytic technology, the company has confirmed to IM.

In its December quarter and 2022 annual results, released late last month, the leading copper miner said it believed the leach innovation initiatives it was pursuing provided potential opportunities to produce incremental copper from its large existing leach stockpiles and lower-grade material currently classified as waste.

The company has been exploring the potential for incremental low-cost additions to its production and reserve profile for some time, saying in the latest results release that it had identified opportunities to achieve an annual run rate of 200 MIb/y (90,718 t/y) of copper through these initiatives by the end of 2023.

Freeport has a long history of copper leaching production with its Americas division, which includes assets such as Morenci and Cerro Verde, having developed and implemented industry-leading technologies for leaching of oxide ores.

The company has been pursuing internal and external initiatives to expand this leading position, focusing on traditional ores and sulphide orebodies that have been typically considered difficult to leach, like chalcopyrite.

This is where Jetti’s technology comes in.

The Colorado-based company has developed catalytic technology to allow for the efficient and effective heap and stockpile leach extraction of copper. This bolts onto existing solvent extraction/electrowinning (SX/EW) leaching plants so it can be deployed rapidly with limited capital expenditure and, because it uses no heating or grinding, has low operational costs. In addition, there are huge environmental benefits from using leaching over pyrometallurgy, according to Jetti.

A Freeport spokesperson confirmed to IM that the company was in a trial of the Jetti technology through “a commercial installation” at its Bagdad mine in Arizona, USA. This mine is one of its major leaching test hubs, with the company targeting over 3 MIb/y of incremental copper cathode production from the open-pit copper mine through this work.

Bagdad has a 77,100 t/d concentrator that produces copper and molybdenum concentrate, an SX/EW plant that can produce approximately 6 MIb/y of copper cathode from solution generated by low-grade stockpile leaching, and a pressure-leach plant to process molybdenum concentrate.

The spokesperson added: “There is potential to expand production via the treatment of additional stockpiles at Bagdad in the future based on results.”

The use of Jetti’s technology is one of several leaching initiatives the company is pursuing – some with outside vendors, some using its own technology and some with joint venture partners.

All of these are focused on not only adding low-cost production to Freeport’s large production base, but also achieving a lower carbon footprint.

Jetti, which Freeport is an investor in, has been conducting a carbon footprint study and Life Cycle Assessment (LCA) of its technology, with the LCA including analyses of typical copper mining operations without Jetti’s technology and a mining operation with Jetti’s technology installed. The LCA is being conducted in conformance with the ISO 14040/44 standard and will be critically reviewed by an independent expert.

Jetti Resources has developed catalytic technology to allow for the efficient and effective heap and stockpile leach extraction of copper

Jetti has also committed to starting to track water usage and waste at all its operations and sites, which includes the installation it has at Capstone Copper’s Pinto Valley operation, also in Arizona.

At Capstone’s operation, Jetti technology is being used extensively as part of a plan to recover up to 350 MIb of cathode copper over the next two decades from historic and new mineralised waste piles.

Teck Resources has also taken an interest in Jetti’s technology having signed an agreement for the evaluation of the solution at a number of Teck’s assets with potential copper resources outside of existing mine plans. BHP, through its BHP Ventures arm, is also an investor in Jetti.

As to Freeport’s wider leaching plans, it said it was looking to use data analytics to provide new insights to drive additional value, while new applications to retain the heat in the stockpiles were “yielding results”.

The company has assessed that it has some 38,000 MIb of contained copper in leach stockpiles deemed “unrecoverable” by traditional leach methods. Of this amount, about 50% is from the massive Morenci mine, which already has leaching production capacity of 900 MIb/y of copper.

Metso Outotec signs another VSF SX-EW order in North America

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Metso Outotec says it has signed an agreement worth some €50 million ($53 million) for the supply of copper solvent extraction and electrowinning technology to North America.

The company’s scope of delivery includes basic engineering, a technology package for the VSF® solvent extraction and electrowinning plants, as well as advisory services for mechanical installation and commissioning, start-up, and spare parts.

Metso Outotec says its Vertical Smooth Flow (VSF) plants offer lower lifetime costs, significantly shorter lead times and sustainable life-cycle technology built on decades of experience in solvent extraction.

Mikko Rantaharju, Vice President, Hydrometallurgy, at Metso Outotec, said: “We are looking forward to working on this project, which will be an important reference for Metso Outotec in North America’s growing copper market.”

Other recent bookings for Metso Outotec’s VSF SX-EW technology include one from First Cobalt (now Electra Battery Materials) and Taseko Mines.

Asiamet engages BGRIMM for SX-EW plant engineering and procurement work at BKM

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Asiamet Resources Limited says it has signed a Memorandum of Understanding (MoU) with BGRIMM Technology Group (BGRIMM) in relation to the engineering and procurement of the solvent extraction and electrowinning (SX-EW) plant for the BKM copper project processing facility in Indonesia.

BGRIMM is a leading Chinese engineering, procurement and construction (EPC) group providing services to the mining industry worldwide.

The MoU will see the two companies, alongside Asiamet’s consulting engineer, NewPro Consulting & Engineering Services Pty Ltd, work on the detailed design information for all equipment packages that BGRIMM has provided cost estimates for as part of the current BKM copper project feasibility study update.

BGRIMM will also complete a detailed cost estimate for an EPC Technical Supervision scope of work for the project’s SX-EW processing plant, which will be used in the FS update capital cost estimate. Upon successful completion of this update and a positive final investment decision by the Asiamet Board, the company will engage with BGRIMM on the provision of a complete engineering and procurement service contract for the SX-EW plant. This will include the supply of all necessary equipment for the SX-EW plant and coordination with suppliers of materials from within Indonesia.

Asiamet will also work with BGRIMM to develop the technical construction supervision requirements for the SX-EW plant when moving into the execution phase as well as commissioning services as required.

The SX-EW plant is a critical component of the BKM processing facility as it delivers the processes of metal purification and copper metal production, Asiamet said. It can be considered a discrete facility with well-defined battery limits, therefore is suitable for delivering as an engineering and procurement package.

Darryn McClelland, Asiamet CEO, added: “BGRIMM have already assisted our engineering consultants NewPro with various equipment pricing used in the FS update capital expenditure estimate as well as costs for executing the engineering and procurement services necessary for delivery of the SX-EW plant.

“Capital cost is a critical component of the feasibility of the BKM copper project and working with BGRIMM is one of a number of opportunities we have taken to help control cost and mitigate the inflationary backdrop seen in 2022. BGRIMM have a strong track record of delivering cost effective engineering and designs for SX-EW plants of the size we are proposing for the BKM copper project and we are very keen to tap into this experience. Asiamet looks forward to developing a strong working relationship with BGRIMM through involvement in the development of the BKM copper project, along with future development opportunities that are likely to arise from the broader KSK Contract of Work.

“Final discrete elements for the delivery of the updated Feasibility Study are nearing completion and we look forward to delivering on this in the near term and critically presenting a project with overall robust economics and attractive cashflow generation.”

A 2022 feasibility study on BKM outlined a maximum 4.5 Mt/y treatment rate from a nine-year heap leach SX-EW operation.

Metso Outotec to deliver VSF X technology to Kyzyl Aray Copper project

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Metso Outotec says it has signed an agreement with Kyzyl Aray Copper, a subsidiary of Caravan Resources, for the supply of copper solvent extraction and electrowinning technology for a plant to be built in the Karagandy region of the Republic of Kazakhstan.

The order of approximately €35 million ($37 million) covers a technology package delivery that includes the modular VSF®X solvent extraction plant and the main process equipment for the electrowinning plant.

Mikko Rantaharju, Vice President, Hydrometallurgy, at Metso Outotec, said: “We are looking forward to working with Kyzyl Aray Copper on this project. The energy-efficient VSF X solvent extraction plant, which is part of our Planet Positive product range, reduces emissions and is safe to operate.

“The Kyzyl Aray Copper project will become an important new reference for Metso Outotec in the growing Kazakhstan copper market as a supplier of a complete production plant that uses solvent extraction and electrowinning technology for copper recovery.”

Metso Outotec says its Vertical Smooth Flow (VSF) plants offer lower lifetime costs, significantly shorter lead times and sustainable life-cycle technology built on decades of experience in solvent extraction.

Orica’s Chemicals business eyes new complementary opportunities

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Orica’s Investor Day, taking place last week, highlighted potential growth areas in one of the company’s less-publicised ‘verticals’, its Chemicals business.

Mining, Quarry & Construction and Digital solutions often steal the headlines in quarterly updates, but Adam Hall, Group Executive & President of Asia & Chemicals, showed there is plenty going on within the company’s fourth vertical.

This business, which covers the fields of ore processing, chemical stabilisation and recovery & treatment, strengthens Orica’s presence across the mining value chain, having a strong alignment with its global footprint and understanding of customer needs, the company says. It also acts as a complementary component of Orica’s “new solutions offerings”.

Orica’s current exposure is to leaching agents and emulsifiers, with cyanide making up its biggest product today.

As one of the largest producers of sodium cyanide for mining, Orica delivers the leaching agent in briquette form in circa-1 tonne boxes that are easily containerised, or within an Orica-designed Sparge isotainer system, or in liquid form via purpose-built iso tanks suitable for safe road or rail transport around the world.

It relies on the Yarwun, Gladstone Cyanide Manufacturing Facility in Queensland for this supply, which has an annual capacity of 95,000 t/y and is compliant with ISO9002 and the International Cyanide Management Code. This facility is complemented by the company’s sodium cyanide transfer stations in Peru, Ghana and Malaysia.

Hall was positive about potential growth opportunities in the cyanide space, explaining demand for cyanide was expected to outpace the predicted growth in gold ore treated to 2026 as the complexities involved with treating orebodies continued to increase.

He said the Yarwun facility had great brownfield growth opportunities around the site, with the company evaluating potential expansions in the region of “high single digit” or “low double digit” percentages.

Hall was equally positive about cyanide retaining its presence in the gold leaching process, saying that, while substitution questions continued to come up, the realities associated with such a transition meant it was infrequently feasible.

“There is one major mine that has switched away from using cyanide into a different reagent,” he said. “That cost them north of $100 million, and our understanding is they would not necessarily do it again. Also, that specific mine has a certain lithography that lent itself to using that reagent.”

Hall said Orica’s emulsifiers – which allow it to differentiate its explosives products through maintaining the stability of the mixture – represented “a small but mighty part” of the company’s product suite. He saw potential growth opportunities for emulsifiers, which he said contained the “secret sauce for emulsification”.

Outside of these two Orica mainstays, Hall highlighted the potential for Orica to play in both flotation and solvent extraction markets as part of growth opportunities that added up to A$23 billion ($16 billion).

In flotation, collectors, frothers and flocculants are integral to optimising the process. The same can be said for solvent extractants in the SX space.

“We see all of these as potentially interesting for Orica,” Hall said. “These are all big fields…but each of them has something we could potentially partner or bring to our clients, and something we will be looking to do over the next five years or so.”

Partnerships could potentially see Orica team up with big chemical players that have a by-product or comparatively small value stream coming out of an integrated facility where Orica could bring its “deep understanding of what the miners need and how we can deliver against that using the products that are produced”, he explained.

This could see Orica act as an agent, an offtaker, or purchaser of the by-product production unit.

As with all other Orica verticals, the Chemicals business will be looking at any potential bolt-on to the emulsifier and cyanide offering as a way to influence more of the value chain, ensuring changes made up- or down-stream provide value throughout the full flowsheet.

Metso Outotec adds to Planet Positive range with Activated Carbon filter for battery metals

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Metso Outotec is launching the Activated Carbon (AC) filter for, it says, efficient recovery and recycling of valuable battery chemicals.

The energy- and water-efficient AC filter responds to the market’s increasing demand for advanced and sustainable battery metals processing technologies and is part of Metso Outotec’s Planet Positive portfolio, it said.

Planet Positive is Metso Outotec’s all-encompassing approach to sustainability. It covers the environmental, social and financial aspects of sustainability, focusing on the positive impact on the environment and people through further growing its sustainable offering through products that are demonstrably more energy or water efficient than the market standard, or help customers achieve other priorities such as circularity and safety, as well as services that help customers improve their productivity.

Mika Vuorikari, Director of Industrial Filtration at Metso Outotec, said: “This launch will strengthen our capability to serve a large variety of industries and processes. Together with the Dual Media (DM) filter, Metso Outotec now has a complete filtration portfolio for solvent extraction (SX), electrowinning and crystallisation processes. We have strong know-how from the hydrometallurgical industry with more than 50 successful filtration solutions references from SX and crystallisation processes globally.”

The modular AC filtration technology is designed for smaller side streams of copper and other metal-loaded aqueous streams. It is specifically suited for efficient organics removal before the electrowinning and crystallisation processes. The AC filter uses the already proven design and operation philosophy of the Metso Outotec DM filter product family and is suitable for both greenfield and brownfield installations, the company added.

Benefits of the AC filter outlined by Metso Outotec include:

  • Increased end-product yield and quality;
  • Increased recovery and recycling of valuable process chemicals;
  • Cost-effective and modular design;
  • Low energy consumption, due to low pumping pressure;
  • Minimised water consumption with optimised back washing; and
  • Safe to use and operate, due to sealed pressure vessel and piping.

Metso Outotec to supply VSFX tech for Li-Cycle battery recycling plant

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Metso Outotec says it has signed an agreement with Li-Cycle North America Hub Inc for the supply of manganese, cobalt, and nickel solvent extraction technology for a battery recycling plant to be built in Rochester, New York in the US.

The contract value, which is not disclosed, has been booked in the Metals December quarter 2021 orders received.

The Metso Outotec delivery includes three modular VSF®X solvent extraction plants and related Dual Media Filters, and basic engineering.

Jari Ålgars, President of the Metals business area at Metso Outotec, said: “We are looking forward to working with Li-Cycle on this battery recycling project. The energy-efficient, modular VSFX solvent extraction plant, which is part of our Planet Positive product range, reduces emissions and is safe to operate. The Li-Cycle project will be an important new reference for Metso Outotec in the battery recycling business.”