Century Lithium Reports on Testing with Saltworks and Production of Battery Grade Lithium Carbonate

Century Lithium Reports on Testing with Saltworks and Production of Battery Grade Lithium Carbonate

 
 

Century Lithium Corp. (TSXV: LCE) (OTCQX: CYDVF) (Frankfurt: C1Z) (Century Lithium or the Company) is pleased to report testing results at Saltworks Technologies, Inc. (Saltworks) in Richmond Canada and additional production of high-purity lithium carbonate (Li 2 CO 3 ) using product solutions from the Company's Lithium Extraction Facility (Pilot Plant) in Amargosa Valley, Nevada USA. The solutions tested at Saltworks were derived from leaching of claystone from the Company's 100%-owned Clayton Valley Lithium Project (Project) in Nevada ; and processed at the Pilot Plant via direct lithium extraction (DLE) to produce an intermediate concentrated lithium solution (DLE eluent).

 
 

  Century Lithium Reports on Testing with Saltworks & Production of Battery Grade Lithium Carbonate (CNW Group/Century Lithium Corp.) 

 
 

"It is very positive to see consistency in our high-purity, 99.87%, lithium carbonate product grades from our Pilot Plant this year" stated Bill Willoughby , President, and CEO of Century Lithium. "The highlight though, is the almost five-fold increase in lithium grade in the concentrated lithium solution generated at the Pilot Plant. This was achieved through collaboration with Koch Technology Solutions and their Li-Pro TM system, and its integration into Century Lithium's chloride-based leaching process."

 

  Highlights  
 
  • Repeated production of high-purity (99.87%) battery-grade lithium carbonate
  •  
  • Improved lithium concentrations in DLE eluent
  •  
  • Reduced volume of solution in downstream treatment and recycling
  •  
  • Potential to eliminate evaporation from the post DLE process flowsheet
  •  
  • Active testing underway to further improve DLE eluent grade
  •  
  Lithium Carbonate Assay Results  
 

Saltworks has once again produced battery-grade lithium carbonate (Li 2 CO 3 ) from the DLE eluent produced at the Pilot Plant. The table below is a comparison of Saltworks' 2023 results for Li 2 CO 3 , DLE eluent Batch 2, with the previously reported results from DLE eluent Batch 1 (see May 25 , 2023 news release ). Also shown are the constituent levels for battery grade Li 2 CO 3, as published by two major producers. The assays results were finalized by Saltworks and independently assayed by SGS Canada, Inc. These results show consistency in composition of both the DLE eluent produced by the Pilot Plant earlier in the year and the resulting Li 2 CO 3 product produced by Saltworks, achieving 99.871% content versus 99.875% reported previously.

 
 
                                                        
 

   Li 2 CO 3 Assay Results   

 
 
 

   Century Li 2 CO 3   

 

   Batch 2 (August 2023)   

 
 

  Century Li 2 CO 3  

 

  Batch 1 (May 2023)  

 
 

  Reference Grades  

 
 

  Li 2 CO 3  

 
 

  wt%  

 
 

   99.871   

 
 

  99.875  

 
 

  >99.5  

 
 

  H 2 O  

 
 

  wt%  

 
 

   0.05   

 
 

  0.03  

 
 

  0.2 to

 
 

  Na  

 
 

  wt%  

 
 

   0.027   

 
 

  0.047  

 
 

  0.03 to

 
 

  Ca  

 
 

  wt%  

 
 

   0.012   

 
 

  0.009  

 
 

  0.01 to

 
 

  Fe  

 
 

  Wppm  

 
 

   3   

 
 

  3  

 
 

  

 
 

  Al  

 
 

  Wppm  

 
 

   3   

 
 

  

 
 

  

 
 

  Cu  

 
 

  Wppm  

 
 

   3   

 
 

  

 
 

  

 
 

  Ni  

 
 

  Wppm  

 
 

    

 
 

  

 
 

  

 
 

  Zn  

 
 

  Wppm  

 
 

    

 
 

  13  

 
 

  

 
 

  Cl  

 
 

  wt%  

 
 

   0.01   

 
 

  0.008  

 
 

  

 
 

   

 

  Notes: wt% (weight percent), wppm (weight parts per million), calculated Li 2 CO 3 purity based on sum of impurities measured
above detection limit. Reference grades are from published specifications from two major producers of battery grade Li 2 CO 3
 

 
 
 

 

 
  Lithium in DLE Eluent  
 

As recently reported (see August 9, 2023   news release ), Century Lithium collaborated with Koch Technology Solutions (KTS), a Koch Engineered Solutions' (KES) company, and integrated KTS' Li-Pro TM system into the DLE stage of the Pilot Plant. This work has increased the grades of the DLE eluent (intermediate lithium product solution) several fold. These changes are outlined in the table below, as reported by analyses from Saltworks.

 
 
                                          
 

   DLE Eluate Assay Results   

 
 
 
 
 
 

   Batch   

 
 

   1   

 
 

   2   

 
 

   3   

 
 

   4   

 
 

   5   

 
 

  Lithium (Li) (ppm)  

 
 

  1,430  

 
 

  1,610  

 
 

  1,885  

 
 

  3,970  

 
 

  6,780  

 
 

  Sodium (Na) (ppm)  

 
 

  22,400  

 
 

  25,850  

 
 

  24,150  

 
 

  19,100  

 
 

  8,220  

 
 

  Total dissolved solids (TDS) (ppm)  

 
 

  77,450  

 
 

  77,850  

 
 

  82,600  

 
 

  78,300  

 
 

  79,300  

 
 

  Li:TDS  

 
 

  0.018  

 
 

  0.021  

 
 

  0.023  

 
 

  0.051  

 
 

  0.085  

 
 

  Li:Na  

 
 

  0.064  

 
 

  0.062  

 
 

  0.078  

 
 

  0.208  

 
 

  0.825  

 
 

   

 

  Notes: DLE eluent for Batch 1 and 2 used to produce Li 2 CO 3 cited above.  

 
 
 

 

 

Batches 1, 2 and 3 are DLE eluents produced during the first quarter of 2023. Li 2 CO 3 production was carried out to completion in batches 1 and 2 but the processing of Batch 3 was put on hold due to its similarity to batches 1 and 2 and the improvements seen in the grades of batches 4 and 5. These improvements in lithium grade from 1,430 parts per million (ppm) to 6,780 ppm, increase in the ratio of lithium to total dissolved solids (TDS) from 0.018 to 0.085, and reduction in sodium from 25,850 ppm to 8,220 ppm all occurred with the introduction of KTS' Li-Pro TM system into the DLE stage of the Company's Pilot Plant.

 
  Implications for Lithium Carbonate Production  
 

The increase in lithium (Li) grade and the Li:TDS ratio has positive implications for the size and costs of the lithium carbonate production portion of the lithium extraction process at the Project. Within the Saltworks flowsheet, these higher values equate to a lower volume of solution to be treated and a proportionate decrease in the amount of water that must be removed (evaporated) prior to lithium carbonate precipitation. This will also affect the recycled solutions within the lithium carbonate production stage by reducing the volume of solutions moved in this stage and other leaching areas of the processing plant.

 

The information derived from the Pilot Plant, including the test results from the combination of Century Lithium's DLE process and KTS' Li-Pro TM system, and recent component changes at the Saltworks laboratory, is supplemental to the Feasibility Study for the project. The design basis for the Feasibility Study was established at a Li:TDS ratio of 0.02.

 

The Saltworks flowsheet targets a lithium grade of 10,000 to 20,000 ppm (10-20 g/L) for precipitation. Work with KTS at the DLE stage at the Pilot Plant has seen preliminary, internally assayed, lithium solution grades of over 8,000 ppm in the DLE eluent. Work is continuing within the DLE area to further increase lithium grades in solution, creating the scope to reduce solution volumes and the potential to eliminate a major evaporation step from the process flowsheet. As a supplement to the Feasibility Study, the Company is pursuing these potential cost and size savings with Saltworks.

 
  Moving Forward  
 

Work on the Feasibility Study continued throughout the six months ended June 30, 2023 , with more than 20,000 consultant hours expended since its commencement. Following receipt of initial values from our consultants, Wood PLC and thyssenkrupp nucera, the Company is conducting internal reviews to assess optimization and cost reduction opportunities; work which is underway. In June 2023 , the Company engaged Kiewit Industrial Group in Lone Tree, Colorado to assist with the review of project designs and estimates with attention to site development, material and supply costs, and construction methods. One optimization opportunity, reducing or eliminating the use of thickeners for tailings separation in the process configuration, was implemented and is under trial at the Pilot Plant.

 

The Company's collaboration with KTS is underway, utilizing KTS' Li-Pro TM equipment in the DLE section of the Pilot Plant, where lithium is selectively recovered from the leach solution while deleterious elements are rejected. Testing with KTS is expected to continue through the 3 rd quarter while KTS collects information to prepare an engineering design and cost estimate for a full-scale deployment of Li-Pro TM system which will supplement the Company's Feasibility Study.

 
  Qualified Person  
 

  Todd Fayram , MMSA-QP and Daniel Kalmbach , CPG, are the qualified persons as defined by National Instrument 43-101 and have approved the technical information in this release.

 
  About Century Lithium Corp.  
 

 Century Lithium Corp. (formerly Cypress Development Corp.) is an advanced stage lithium company, focused on developing its 100%-owned Clayton Valley Lithium Project in west-central Nevada, USA . Century Lithium is currently in the pilot stage of testing on material from its lithium-bearing claystone deposit at its Lithium Extraction Facility in Amargosa Valley, Nevada and progressing towards completing a Feasibility Study and permitting, with the goal of becoming a domestic producer of lithium for the growing electric vehicle and battery storage market.

 

  ON BEHALF OF Century Lithium CORP.
  WILLIAM WILLOUGHBY , PhD., PE
President & Chief Executive Officer

 

   centurylithium.com     

 

NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THE CONTENT OF THIS NEWS RELEASE.

 
   Cautionary Note Regarding Forward-Looking Statements   
 

  This release includes certain statements that may be deemed to be "forward-looking statements". Forward-looking statements are subject to risks, uncertainties and assumptions and are identified by words such as " expects," "estimates," "projects," "anticipates," "believes," "could," "scheduled," and other similar words. All statements in this release, other than statements of historical facts, that address events or developments that management of the Company expects, are forward-looking statements. Although management believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance, and actual results or developments may differ materially from those in the forward-looking statements. The Company undertakes no obligation to update these forward-looking statements if management's beliefs, estimates or opinions, or other factors, should change. Factors that could cause actual results to differ materially from those in forward-looking statements, include market prices, exploration, and development successes, continued availability of capital and financing, and general economic, market or business conditions. Please see the public filings of the Company at    www.sedar.com    for further information.  

 
 
 

 Cision View original content to download multimedia: https://www.prnewswire.com/news-releases/century-lithium-reports-on-testing-with-saltworks-and-production-of-battery-grade-lithium-carbonate-301905334.html  

 

SOURCE Century Lithium Corp.

 

 

 

 Cision View original content to download multimedia: https://www.newswire.ca/en/releases/archive/August2023/21/c3469.html  

 
 

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  FEASIBILITY STUDY HIGHLIGHTS  

 
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  •  
  •   Innovative Approach in Processing: patent-pending chloride leaching process combined with Direct Lithium Extraction (DLE), the Feasibility Study is supported by 2+ years of testing at the Company's Pilot Plant

  •  
  •   Mineral Resource Estimate: Measured and Indicated resources totaling 1,207.33 million tonnes (Mt) at an average grade of 957 parts per million (ppm) lithium (Li) containing 1. 155 Mt of Li or 6. 148 Mt of lithium carbonate equivalent (LCE)

  •  
  •   Long 40-Year Mine Life : Proven and Probable Mineral Reserve Estimate totaling 287.65 Mt at an average grade of 1,149 ppm Li containing 0. 330 Mt of lithium or 1. 759 Mt of LCE

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  •   Initial Project: Phase 1 Capital Cost $1.537 billion for production capacity of 13,000 tpa LCE

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  •   Designed for Expansion: Phase 2 $0.651 billion for 28,000 tpa LCE, and Phase 3 $1.336 billion for 41,000 tpa LCE; Project expansions are capitalized with Project cash flow

  •  
  •   Low Operating Cost: average operating cost $8,223 /t of Li 2 CO 3 produced, or $2,766 /t after sales of surplus sodium hydroxide (NaOH)

  •  
  •   After-tax IRR of 17.1% at $24,000 /t Li 2 CO 3 :   $3.01 billion after-tax net present value (NPV) at 8% discount rate and a 17.1% after-tax internal rate of return (IRR), using price assumptions of $24,000 /t for Li 2 CO 3 and $600 /dry metric tonne (dmt) for NaOH
  •  

Century Lithium Corp. (TSXV : LCE ) (OTCQX: CYDVF ) (Frankfurt: C1Z ) (Century Lithium or the Company) is pleased to announce the results of a National Instrument 43-101 (NI 43-101) feasibility study (Feasibility Study, FS or Study) completed on its 100% owned Clayton Valley Lithium Project (Project) in Nevada, USA . The Feasibility Study was prepared by Wood Group USA Inc. (Wood) and Global Resource Engineering, Ltd. (GRE). All currency amounts in this news release are presented in U.S. dollars.

 

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  Century Lithium Provides Update on the Feasibility Study (CNW Group/Century Lithium Corp.) 

 

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  ON BEHALF OF Century Lithium CORP.
  WILLIAM WILLOUGHBY , PhD., PE
President & Chief Executive Officer

 

NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THE CONTENT OF THIS NEWS RELEASE.

 
   Cautionary Note Regarding Forward-Looking Statements   
 

  This release includes certain statements that may be deemed to be "forward-looking statements". Forward-looking statements are subject to risks, uncertainties and assumptions and are identified by words such as   "   expects," "estimates," "projects," "anticipates," "believes," "could," "scheduled," and other similar words. All statements in this release, other than statements of historical facts, that address events or developments that management of the Company expects, are forward-looking statements. Although management believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance, and actual results or developments may differ materially from those in the forward-looking statements. The Company undertakes no obligation to update these forward-looking statements if management's beliefs, estimates or opinions, or other factors, should change. Factors that could cause actual results to differ materially from those in forward-looking statements, include market prices, exploration, and development successes, continued availability of capital and financing, and general economic, market or business conditions. Please see the public filings of the Company at   www.sedar.com   for further information.  

 

 Cision View original content to download multimedia: https://www.prnewswire.com/news-releases/century-lithium-provides-update-on-the-feasibility-study-302121633.html  

 

SOURCE Century Lithium Corp.

 

 

 

 Cision View original content to download multimedia: http://www.newswire.ca/en/releases/archive/April2024/19/c7578.html  

 
 

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