VANCOUVER, BC / ACCESSWIRE / September 28, 2021 / Commerce Resources Corp. (TSXV:CCE)(FSE:D7H0)(OTCWX:CMRZF) (the "Company" or "Commerce") is pleased to announce that it has initiated a mineral processing program to determine the final Prefeasibility Study (PFS) design criteria of the front-end flowsheet for the Ashram Rare Earth and Fluorspar Deposit. The program has been developed in coordination with the Qualified Persons for the Project's PFS flowsheet design and will be carried out at Hazen Research, where the Company's conventional base flowsheet has been developed.
The program is designed to confirm the mineral processing components in order to establish the front-end flowsheet design for the PFS. The design of the downstream hydrometallurgical flowsheet for the PFS is currently being confirmed as part of the ongoing program to produce mixed rare earth carbonate concentrate to satisfy several requests by global processors (see news release dated September 9, 2021). Specifically, the mineral processing program will include,
- Incorporation of the advancements to the flotation circuit, made by academic and government institutions, into the Company's base flowsheet developed at Hazen Research.
- Final flotation and magnetic separation development testwork to confirm the optimal reagent suite and conditions of the front-end flowsheet.
- Phase II comminution variability testing on nine (9) domain composites of drill core collected throughout the deposit.
- Front-end flowsheet variability testing on early/mid mine-life deposit material using domain composites.
- Filtration testing on flotation concentrate and tailings to determine material handling and tailings management facility design.
Company President, Chris Grove comments, "The Company has significantly advanced the flowsheet's development through focused work in past programs at Hazen Research as well through the numerous optimizations and discoveries from our institutional collaborations, which continue today. As we advance through the later stages of the PFS for Ashram, it is now time to confirm the flowsheet's PFS design criteria which is the next step in advancing the study to completion. Flowsheet development remains an ongoing process through to Feasibility and is commonly refined during operation, and as such, the Company will continue to advance the test work and unlock the considerable potential for optimization that remains in which Hazen and our institutional metallurgical partners have outlined."
Flotation and Wet High Intensity Magnetic Separation (WHIMS)
Approximately 5 tonnes of Ashram Deposit bulk sample material, at a grade of 2.0% rare earth oxide (REO), have been crushed and ground to use as feed for the test program. The initial focus of the program will be to incorporate into the base flowsheet the discoveries and advancements made by the academic and government institutional groups, namely CanmetMINING (a branch of Natural Resources Canada - NRCan) and Université Laval, whose test programs have been supported by various provincial and federal grant programs. The successes of these programs include significant reductions in reagent quantities, alternative reagent suites, and improved recoveries in cleaner-stage flotation (see news releases dated May 13, 2020, and December 17, 2019, respectively). Once the flotation component of the flowsheet has been confirmed and the optimal flotation reagent scheme and conditions have been determined, a scale-up will be completed, which may include additional piloting.
Following confirmation of the flotation circuit design, the magnetic separation circuit will be further advanced and optimized. The initial work on the magnetic separation stage (WHIMS) proved extremely successful with a strong upgrading factor at very high stage recoveries (high 80s to mid-high 90s) resulting in the high-grade monazite concentrates (>40% rare earth oxide) comparable to global producers. As such, significant room remains for additional improvement and the test work planned herein for the magnetic separation stage will target further optimization of this circuit including the evaluation of different types of magnetic separator equipment.
Comminution and Variability
The Phase II comminution test work is currently being carried out by SGS Canada on nine (9) rock unit domain composites and will include Bond low energy impact testing (CWi), JK drop-weight testing (DWT), SAG mill comminution testing (SMC), Bond rod mill grindability testing (RWi), Bond ball mill grindability testing (BWi), and Bond abrasion testing (Ai). The Phase II comminution test work will complement the Phase I work completed in 2012 on near-surface drill core intersections (<71 m depth) located in the central areas of the deposit. Comminution data is a critical component of a PFS and is required to determine appropriate equipment sizing, maintenance cycles, and energy requirements at the mill.
As part of the overall program, variability testing will be completed to expand upon previous work, including applying the base case flotation flowsheet to the nine (9) domain composites currently being used for the comminution testwork. The information will complement the comminution data and further constrain equipment sizing and other critical design criteria for the process plant. A specific focus will be placed on material which is expected to comprise the initial years of mine-life.
Variability testing is a critical component of flowsheet development and ensures that the process plant can handle the natural variability of the deposit mineralization. Some of this work has already been completed throughout the test programs over the past few years and include testwork on drill core at different locations within the deposit, as well as bulk sample material from surface outcrop.
Filtration
As part of the overall program, filtration testing will be completed on flotation concentrate and tailings to determine material handling and tailings management facility design. Tests will include static settling, vacuum, and pressure filtration and complement the preliminary filtration testing completed as part of the 2015 flotation pilot plant operation. The data collected will be used to determine the appropriate filtration methods and equipment sizing for operation at the process plant, as well as determine the optimal handling, transport, and storage methods for the concentrate and tailings.
The current flowsheet for the Ashram Rare Earth and Fluorspar Deposit, developed by Hazen Research, uses conventional unit processes to produce a high-grade rare earth mineral (monazite) concentrate that is comparable to active global hard-rock REE producers. Specifically, the Ashram flowsheet utilizes a flotation - HCl leach - magnetic separation process approach to achieve high-grade (>40% REO) monazite concentrates at high recovery, similar in nature to those which are commonly processed globally today.
NI 43-101 Disclosure
Darren L. Smith, M.Sc., P.Geo., Dahrouge Geological Consulting Ltd., a Permit holder with the Ordre des Géologues du Québec and Qualified Person as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects, supervised the preparation of the technical information in this news release.
About Commerce Resources Corp.
Commerce Resources Corp. is a junior mineral resource company focused on the development of the Ashram Rare Earth and Fluorspar Deposit located in Quebec, Canada. The Company is positioning to be one of the lowest cost rare earth producers globally, with a specific focus on being a long-term supplier of mixed rare earth carbonate and/or NdPr oxide to the global market. The Ashram Deposit is characterized by simple rare earth (monazite, bastnaesite, xenotime) and gangue (carbonates) mineralogy, a large tonnage resource at favourable grade, and has demonstrated the production of high-grade (>45% REO) mineral concentrates at high recovery (>70%) in line with active global producers. In addition to being one of the largest rare earth deposits globally, Ashram is also one of the largest fluorspar deposits globally and has the potential to be a long-term supplier to the met-spar and acid-spar markets.
For more information, please visit the corporate website at www.commerceresources.com or email info@commerceresources.com.
On Behalf of the Board of Directors
COMMERCE RESOURCES CORP.
"Chris Grove"
Chris Grove
President and Director
Tel: 604.484.2700
Email: cgrove@commerceresources.com
Web: http://www.commerceresources.com
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Forward Looking Statements
This news release contains forward-looking information which is subject to a variety of risks and uncertainties and other factors that could cause actual events or results to differ from those projected in the forward-looking statements. Forward looking statements in this press release include, but are not limited to, statements regarding the progress of the Company's metallurgical program and any future methods employed therein, the Company's ability to reduce downstream processing costs and risk, the Company's ability to repeat and produce high-grade monazite concentrates, the Company's ability to become one of the lowest cost rare earth producers globally as well as its potential ability to be a long-term supplier to the met-spar and acid-spar markets. These forward-looking statements are subject to a variety of risks and uncertainties and other factors that could cause actual events or results to differ materially from those projected in the forward-looking information. Risks that could change or prevent these statements from coming to fruition include that the methods proposed do not work as well as expected, the leach residue may not be usable, that the Company may experience difficulties producing concentrate or achieving an upgrade to the concentrate; changing costs for mining and processing; increased capital costs; the timing and content of the work programs; geological interpretations based on drilling that may change with more detailed information; potential process methods and mineral recoveries assumption based on limited test work and by comparison to what are considered analogous deposits that with further test work may not be comparable; that testing of the Company's process may not prove successful and even if tests are successful, the economic and other outcomes may not be as expected; the availability of labour, equipment and markets for the products produced; and despite the current expected viability of the project, conditions changing such that the minerals on our property cannot be economically mined, or that the required permits to build and operate the envisaged mine can be obtained. The novel strain of coronavirus, COVID-19, also poses new risks that are currently indescribable and immeasurable. The forward-looking information contained herein is given as of the date hereof and the Company assumes no responsibility to update or revise such information to reflect new events or circumstances, except as required by law.
SOURCE: Commerce Resources Corp.
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不列颠哥伦比亚省温哥华/ACCESSWIRE/2021年9月28日/商业资源公司(TSXV:CCE)(FSE:D7H0)(OTCWX:CMRZF)(The“公司“或”商业“)很高兴地宣布,它已经启动了一个选矿项目,以确定阿什拉姆稀土和萤石矿床前端流程的最终预可行性研究(PFS)设计标准。该项目是与项目PFS流程设计的合格人员合作开发的,将在哈森研究公司(Hazen Research)实施,该公司的常规基础流程就是在这里制定的。
该计划旨在确定选矿成分,以便建立PFS的前端流程图设计。PFS下游湿法冶金流程的设计目前正在确认,这是正在进行的生产混合碳酸稀土精矿计划的一部分,以满足全球加工商的几项要求(见2021年9月9日的新闻稿)。具体地说,选矿计划将包括,
- 将学术和政府机构对浮选流程的改进纳入公司由哈森研究开发的基本流程中。
- 进行最终浮选和磁选开发试验,确定最佳药剂组合和前端流程条件。
- 对在整个矿床中收集的九(9)个钻芯复合体进行第二阶段粉碎可变性测试。
- 利用电畴复合材料对早、中期矿床材料进行前端流程图变异性测试。
- 对浮选精矿和尾矿进行过滤试验,以确定物料搬运和尾矿管理设施设计。
公司总裁克里斯·格罗夫评论说:“公司通过过去在Hazen Research项目中的重点工作,以及通过我们的机构合作中的大量优化和发现(至今仍在继续),极大地推动了流程图的发展。随着我们推进道场加油站的后期阶段,现在是确认流程图的加油站设计标准的时候了,这是推动研究完成的下一步。流程图的开发仍然是一个从可行性到可行性的持续过程,通常会在运营过程中进行改进,因此,公司将继续推进测试工作,并释放出哈森和我们的冶金机构合作伙伴所概述的巨大的优化潜力。“
浮选和湿法强磁选(突发事件)
大约5吨等级为2.0%的稀土氧化物(REO)的阿什拉姆矿藏散装样品材料已被粉碎和研磨,用作试验计划的饲料。该计划的最初重点将是将学术和政府机构团体的发现和进展纳入基本流程图,即CanmetMINING(加拿大自然资源-NRCan的一个分支机构)和UniversityéLaval,它们的测试计划得到了各种省级和联邦拨款计划的支持。这些项目的成功包括大幅减少药剂数量、替代药剂套件以及提高更清洁阶段浮选的回收率(见分别于2020年5月13日和2019年12月17日发布的新闻稿)。一旦确定了工艺流程的浮选组分,并确定了最佳浮选药剂方案和条件,将完成放大,其中可能包括额外的试验。
浮选回路设计确认后,磁选回路将进一步改进和优化。磁选阶段(WHIMS)的初步工作被证明是极其成功的,在非常高的阶段回收率(高80度到中高90度)时具有很强的提质系数,从而生产出可与全球生产商媲美的高品位独居石精矿(>40%稀土氧化物)。因此,还有很大的改进空间,这里为磁分离阶段计划的测试工作将以该电路的进一步优化为目标,包括评估不同类型的磁选机设备。
粉碎和变化性
SGS Canada目前正在对九(9)个岩石单元领域复合材料进行二期粉碎测试,将包括邦德低能冲击测试(CWI)、JK落重测试(DWT)、SAG磨机粉碎测试(SMC)、邦德棒磨机研磨性测试(RWI)、邦德球磨机研磨性测试(BWI)和邦德磨损测试(AI)。第二阶段粉碎测试工作将补充2012年完成的近地表钻芯交叉口第一阶段工作(
作为整体计划的一部分,可变性测试将在之前工作的基础上完成,包括将基本情况浮选流程图应用于当前用于粉碎测试工作的九(9)个领域复合材料。这些信息将补充粉碎数据,并进一步约束加工厂的设备尺寸和其他关键设计标准。具体的重点将放在预计将构成矿井寿命最初几年的材料上。
可变性测试是流程图开发的关键组成部分,可确保加工厂能够处理矿床矿化的自然可变性。其中一些工作已经在过去几年的测试计划中完成,包括在矿藏内不同位置的钻芯测试工作,以及从地表露头采集的大量样品。
滤过
作为整体计划的一部分,将对浮选精矿和尾矿进行过滤测试,以确定物料搬运和尾矿管理设施设计。测试将包括静态沉降、真空和加压过滤,作为2015年浮选中试运行的一部分完成的初步过滤测试的补充。收集的数据将用于确定加工厂运行的适当过滤方法和设备尺寸,以及确定精矿和尾矿的最佳搬运、运输和储存方法。
由Hazen Research开发的Ashram稀土和萤石矿床目前的流程使用常规单元工艺生产可与活跃的全球硬岩稀土生产商相媲美的高品位稀土矿物(独居石)精矿。具体地说,阿什拉姆流程采用浮选-盐酸浸出-磁选流程,以高回收率获得高品位(>40%REO)独居石精矿,性质类似于当今全球普遍加工的独居石精矿。
NI 43-101披露
Darren L.Smith,M.Sc,P.Geo,Dahrouge Geological Consulting Ltd.,魁北克Géologues du Québec许可证持有者,以及National Instrument 43-101定义的合格人士-矿产项目信息披露标准,监督了本新闻稿中技术信息的准备工作。
关于商业资源公司
商业资源公司是一家初级矿产资源公司,专注于开发位于加拿大魁北克的阿什拉姆稀土和萤石矿床。该公司的定位是成为全球成本最低的稀土生产商之一,特别专注于成为全球市场混合碳酸稀土和/或NdPr氧化物的长期供应商。阿什拉姆矿床的特点是简单的稀土(独居石、氟碳榴石、磷钨矿)和脉石(碳酸盐)矿物学,这是一种品位有利的大吨位资源,并证明了高品位(>45%REO)矿物精矿的生产,回收率高(>70%),与全球活跃的生产商一致。除了是全球最大的稀土矿藏之一,阿什拉姆也是全球最大的萤石矿藏之一,有潜力成为硬质石和酸石市场的长期供应商。
欲获知更多信息,请访问公司网站,网址:www.Commercial ceresources.com,或发电子邮件至info@Commercial ceresources.com。
我谨代表董事会
商业资源公司。
"克里斯·格罗夫"
克里斯·格罗夫
总裁兼董事
电话:604.484.2700
电子邮件:cgrove@Commercial ceresources.com
网址:http://www.commerceresources.com
多伦多证券交易所创业板交易所及其监管服务提供商(该术语在多伦多证券交易所创业板政策中定义)均不对本新闻稿的充分性或准确性承担责任。
前瞻性陈述
本新闻稿包含前瞻性信息,这些信息会受到各种风险、不确定因素和其他因素的影响,这些因素可能会导致实际事件或结果与前瞻性陈述中预测的不同。本新闻稿中的前瞻性陈述包括但不限于有关该公司冶金项目的进展和其中采用的任何未来方法、该公司降低下游加工成本和风险的能力、该公司重复生产高品级独居石精矿的能力、该公司成为全球成本最低的稀土生产商之一的能力,以及该公司成为金属石和酸石市场长期供应商的潜在能力等的陈述,这些陈述包括但不限于:该公司冶金项目的进展和其中采用的任何未来方法;该公司降低下游加工成本和风险的能力;该公司重复生产高品级独居石精矿的能力;该公司成为全球成本最低的稀土生产商之一的能力;以及该公司成为金属石和酸石市场长期供应商的潜在能力。这些前瞻性陈述会受到各种风险、不确定因素和其他因素的影响,这些因素可能会导致实际事件或结果与前瞻性信息中预测的大不相同。可能改变或阻止这些陈述取得成果的风险包括:提议的方法没有像预期的那样有效,浸出残渣可能无法使用,公司可能在生产精矿或实现精矿升级方面遇到困难;采矿和加工成本发生变化;资本成本增加;工作计划的时间和内容;基于钻探的地质解释可能会随着更详细的信息而改变;潜在的工艺方法和矿物回收率假设基于有限的测试工作,并与被认为与进一步测试工作可能不可比的类似矿床进行比较;对公司流程的测试可能不会被证明是成功的,即使测试成功,经济和其他结果也可能不像预期的那样;劳动力的可用性, 这些进展包括:生产产品的设备和市场;尽管项目目前预期可行,但条件发生了变化,使得我们财产上的矿物不能经济开采,或者可以获得建设和运营设想中的矿山所需的许可证。新型冠状病毒新冠肺炎还带来了目前无法形容和无法衡量的新风险。本文中包含的前瞻性信息是截至本文发布之日的前瞻性信息,除非法律另有要求,否则公司不承担更新或修改此类信息以反映新事件或新情况的责任。
资料来源:商业资源公司(Commerce Resources Corp.)
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