News News
Contact us
  • Customer service number:64321087
  • Commercial service telephone:13918059423
  • Technical service telephone:13918059423
  • Contact person: Mr. Cui 
  • Service email:shxtb@163.com
  • Address: room 107, building 8, no. 100, guilin road, xuhui district, Shanghai

Defense Metals Corp. and SRC Investigate XRT Ammenability

The date of: 2021-01-14
viewed: 2
Defense Metals Corp. and SRC Investigate XRT Ammenability of Wicheeda Rare Earth Element Mineralization


 

source:PRNewswire

VANCOUVER, BC, Jan. 13, 2021 /PRNewswire/ - Defense Metals Corp. ('Defense Metals' or the 'Company') (TSXV: DEFN) (OTCQB: DFMTF) (FSE: 35D) is pleased to announce that it has commissioned the Saskatchewan Research Council ('SRC') to complete an X-Ray Transmission ('XRT') sorting amenability study with respect to mineralized feed sourced from its 1,708 hectare (4,220 acre) Wicheeda Rare Earth Element (REE) Property ('Wicheeda') located close to existing infrastructure near Prince George, British Columbia (BC).

Defense Metals and SRC have been awarded National Research Council of Canada Industrial Research Assistance Program (NRC IRAP) funding, a Government of Canada funded program mandated to provide financial support for technology innovation. Funding awarded under the NRC IRAP will cover approximately 70% of the estimated cost of the XRT amenability study test-work.

The Wicheeda project has indicated mineral resources of 4,890,000 tonnes averaging 3.02% LREO (Light Rare Earth Elements) and inferred mineral resources of 12,100,000 tonnes averaging 2.90% LREO1. Flotation pilot-plant processing of a 26-tonne bulk sample of Wicheeda REE material yielded a mineral concentrate averaging 7.4% NdPr oxide (neodymium-praseodymium) critical magnet metals2.

The objective of the SRC amenability study is to investigate XRT sorting for the purpose of upgrading Wicheeda REE mineralization prior to downstream processing.  Sensor based sorting has several advantages when applied to REE mining projects in that beneficiation occurs without water and with reduced grinding requirements. The investigation will assess how much gangue can be removed from the head feed. The investigation will then carry out an iterative study of different sorting sizes to process in the XRT sorter assessing both the grade of the upgraded concentrate and the grade of the waste for economic studies whereby the optimum operational parameters can be determined. 

XRT sorting has the potential to realize several significant project benefits including:

Relatively low-cost gangue (unmineralized waste) removal and volume reduction at the front-end of the Wicheeda REE processing stream;

Potential to have a significant positive benefit on downstream flotation and hydrometallurgical processes via reduced water, heating, and reagent consumption costs; and

Depending on the success of the test-work these reductions may contribute to overall lower size / throughput and capital cost of potential future commercial REE concentration and refining facilities at Wicheeda.

Craig Taylor, CEO comments:

'Defense Metals looks forward to investigating the potential of low-cost front-end upgrading of Wicheeda REE mineralization via XRT sorting. We have already demonstrated the ability to produce a greater than 50% REO concentrate during flotation pilot plant test-work and we hope unlocking the benefits of XRT sorting will yield downstream processing benefits of increased head grade, flotation concentrate, and hydrometallurgical feed streams'.

Details of XRT Study Methodology

X-ray Transmission (XRT) Analysis:

The XRT investigation requires the selection of large samples containing both gangue and REE mineralization for analysis. The samples are analysed using:

Dual energy X-ray transmission measurements (DE-CT), and

QEMSCAN for calibration and mineral identification and modal mineralogy.

Photographs of the polished QEMSCAN samples are used to verify the atomic differences measured by DE-CT. The modal mineralogy is used to determine REE grades.

Image Analysis:

The DE-CT images are analyzed using different sized grids to determine how much gangue can be removed for a range of particle sizes. This process determines the upgrading possibilities for different sorting sizes, the grade of the concentrate and the grade of the waste. 

Wicheeda REE Project

The Wicheeda REE project has indicated mineral resources of 4,890,000 tonnes averaging 3.02% LREO (Light Rare Earth Elements) and inferred mineral resources of 12,100,000 tonnes averaging 2.90% LREO3.

Qualified Person

The scientific and technical information contained in this news release as it relates to the Wicheeda REE Property has been reviewed and approved by Kristopher J. Raffle, P.Geo. (BC) Principal and Consultant of APEX Geoscience Ltd. of Edmonton, AB, a director of Defense Metals and a 'Qualified Person' as defined in National Instrument 43-101 – Standards of Disclosure for Mineral Projects. 



Hot News / Related to recommend
  • 2020 - 12 - 31
    Click on the number of times: 1
  • 2020 - 09 - 30
    Click on the number of times: 4
    金秋送爽,天高云淡。中秋国庆佳节来临之际,上海市稀土协会祝大家双节快乐,身体健康,万事如意!
  • 2020 - 01 - 22
    Click on the number of times: 3
  • Copyright ©Copyright 2018 2020 Shanghai rare earth association All Rights Reserved Shanghai ICP NO.2020034223
    the host:Shanghai Association of Rare Earth the guide:Shanghai Development and Application Office of Rare Earth the organizer:Shanghai rare earth industry promotion center
    犀牛云提供云计算服务