Lithium Universe

Excellent Progress of Lithium Carbonate Refinery Engineering Study

Lithium Universe Limited (“Lithium Universe”, the “Company” or ASX: “LU7”) is pleased to report the excellent progress of the Engineering Study by Hatch Ltd (Hatch) on the Company’s Québec Lithium Processing Hub (QLPH) multi-purpose battery-grade lithium carbonate refinery. The Refinery is rated at 16,000 tpa with an assumed feed grade of spodumene at or around 5.5% Li2O. The final lithium carbonate product should be at least 99.5% and 99.9% grade. Target plant availability is 84% and target overall recovery rate for lithium is 85%. Anhydrous sodium sulphate, generally used in the textile industry, will be sold as a by-product. The alumina- silicate residue from the leached spodumene will be sold to the cement industry.


Highlights

  • Hatch's outstanding progress in QLPH Li Carb Refinery engineering study
  • Finalisation of design flow sheet and draft site layout
  • Completion of Block Flow Diagram (BFD) and Process Flow Diagrams (PFD) and Mass Balance along with Process Design Criteria (PDC)

The finalized design flow sheet (See Figure 1) illustrates how the front end loader operation and belt conveyors feed spodumene concentrate from the stockpile area to the calciner. The concentrate is calcined at 1080°C in a direct-fired rotary kiln to convert the alpha spodumene to the leachable beta spodumene. The calcining kiln off-gases will pass through a cyclone and an electrostatic precipitator to comply with environmental emissions limits. The hot calcine is indirectly cooled and dry-milled to less than 300 µm. After storage in a surge bin, the beta spodumene is mixed with concentrated sulphuric acid and roasted at 250°C in an indirectly heated kiln. The sulphating kiln off-gases will be cleaned in a wet scrubber to meet site environmental emissions limits. The sulphated spodumene is cooled and fed to the leach circuit. The combined leached solids and precipitated impurities are thickened prior to being filtered in a belt filter. The filtrate is combined with the thickener overflow and passed through a polishing sand filter and an ion exchange column to remove residual calcium, magnesium and other multivalent cations before the lithium carbonate area.

The solution entering the lithium carbonate production area is heated and then reacted with a hot sodium carbonate solution in a single crystalliser operating at 95°C. The coarse crystals from the crystalliser are thickened before passing to the centrifuge circuit. Raw lithium carbonate is further purified to battery grade using the carbonation process. After slurried in demin water, soluble lithium bi-carbonate is formed from the bubbling of carbon dioxide gas. The solution is filtered, and lithium carbonate is re-crystalised when the solution is heated using injected steam. Carbon dioxide gas is re-generated which is recycled to the front end of the purification process. Battery-grade lithium carbonate is centrifuged and dried in an indirect-fired kiln at 120°C. The dry coarse lithium carbonate is air-milled to less than 6 µm in a microniser and then pneumatically conveyed to the storage bins and bagging stations. Anhydrous sodium sulphate is produced from the vacuum evaporative crystallisation, dried, packaged and sold to the textile industry as a by-product. The design closely resembles that of the Jiangsu Lithium Carbonate Plant but is more robust and capable of processing various types of spodumene concentrate from Canada and around the world.

Figure 1 – Process Flow Diagram, QLPH Lithium Refinery

The company has developed a draft overall site layout to account for Canadian climate conditions, and defines roads required for delivery of raw materials and shipment of products and co-products. See Figure 2.

Figure 2 – Draft layout of QLPH Lithium Refinery

So far, the Hatch Study team has provided a Block Flow Diagram (BFD) and Process Flow Diagrams (PFD). They've also delivered a Mass Balance along with Process Design Criteria (PDC), which showcase mass flows, splits, and anticipated tonnages concerning significant equipment. The progress made thus far has been excellent. Hatch has also completed a location study for the optimal site selection for the Company’s proposed 16,000 ton per annum battery-grade lithium carbonate refinery, which is an integral part of the Company's Québec Lithium Processing Hub (QLPH). The location study involved an evaluation of various potential locations, with more than 20 municipalities contacted, and relied on recent site location benchmarks from both 2021 and 2023. Based on the location study, Lithium Universe has opted to concentrate on the Bécancour Industrial Park located between Québec City and Montreal. The company has initiated discussions with the Société du parc industriel et portuaire de Bécancour (SPIPB) concerning the Bécancour Industrial Park.

Mr Iggy Tan, the Chairman of LU7 said “The progress of the engineering study for the QLPH Lithium Refinery by Hatch has been excellent, setting the stage for the Definitive Feasibility Study (DFS). Considering our listing in early August this year, the pace and quality of work demonstrated by Hatch, guided by the Company's Lithium Dream Team, has been pleasing”.


Click here for the full ASX Release

This article includes content from Lithium Universe Limited, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.

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Closing the Lithium Conversion Gap in North America

Macquarie Electro Jet Silver Extraction Recovery

Macquarie Electro Jet Silver Extraction Recovery

Lithium Universe (LU7:AU) has announced Macquarie Electro Jet Silver Extraction Recovery

Download the PDF here.

Lithium Universe Ltd  Quarterly Activities Report

Lithium Universe Ltd Quarterly Activities Report

Melbourne, Australia (ABN Newswire) - During the June quarter, Lithium Universe Ltd (ASX:LU7,OTC:LUVSF) (FRA:KU00) (OTCMKTS:LUVSF) announced the acquisition of the global rights to commercially exploit a patented photovoltaic solar panel recycling technology known as "Microwave Joule Heating Technology" (MJHT) developed by Macquarie University and held by an Australian-incorporated holding company, New Age Minerals Pty Ltd. The transaction was finalised in July, when LU7 completed its due diligence and acquired 100% of the issued share capital of New Age Minerals Pty Ltd.

The basis of Microwave Joule Heating Technology utilises microwave technology to selectively heat silicon, thereby softening the EVA encapsulant in solar panels, enabling easy delamination and potential recovery of valuable materials at room temperature. This approach avoids the need for extreme heat (1,400degC) typically required for separating materials like glass and silicon, as well as the use of costly, hazardous chemicals in traditional processes. Delamination also enables selective separation of materials, whereas traditional crushing methods often result in cross-contaminated material and lower recovery rates.

The breakthrough technology offers a promising new approach for the enhanced recovery of valuable metals, including silver, silicon, gallium, and indium. The Company plans to initiate further research and development in this area.

"The Lithium Universe team has had a very productive start to the year.

On the lithium front, we completed the positive lithium refinery DFS, and over the past quarter have leveraged that into a wide range of ongoing conversations with producers, offtake partners, and funding partners.

Based on those discussions, I remain very confident in our counter-cyclical strategy and firmly believe that LU7 is well-positioned to benefit significantly when the lithium market rebounds.

While awaiting this recovery, we were also excited to seize the opportunity to acquire a cutting-edge solar panel recycling technology developed by Macquarie University. With a growing focus on the supply of critical minerals, the potential to unlock a new source of silver, silicon, gallium, and indium to feed the high-tech industry has a lot of value and aligns well with Lithium Universe's strategy of developing mineral processing technology and infrastructure for the circular economy.

Waste management is also a growing concern globally. And with only 15% of panels currently being recycled, the need for effective PV recycling has never been greater. Microwave technology offers a promising solution to these challenges, enabling higher recovery rates and more sustainable recycling processes.

We are looking forward to adding our chemical and industry experience to the mix and working with the Macquarie University team to commercialise this exciting technology."

Executive Chairman
Iggy Tan

*To view the full Quarterly Report, please visit:
https://abnnewswire.net/lnk/2X581523



About Lithium Universe Ltd:

Lithium Universe Ltd (ASX:LU7,OTC:LUVSF) (FRA:KU00) (OTCMKTS:LUVSF) is a forward-thinking company on a mission to close the "Lithium Conversion Gap" in North America and revolutionize the photovoltaic (PV) solar panel recycling sector. The company is dedicated to securing the future of green energy by addressing two major strategic initiatives: the development of a green, battery-grade lithium carbonate refinery in Quebec, Canada, and pioneering the recycling of valuable metals, including silver, from discarded solar panels.



Source:
Lithium Universe Ltd

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