Defense Metals Metallurgy Study Returns 48.7% Rare Earth Oxide Concentrate Grade and 85.7% Recovery for Wicheeda Rare Earth Element Property
Defense Metals Metallurgy Study Returns
48.7% Rare Earth Oxide Concentrate Grade
and 85.7% Recovery for Wicheeda Rare Earth
Element Property
VANCOUVER
,
Oct. 24, 2019
/CNW/ - Defense Metals Corp. ("
Defense Metals
") (TSX-V:DEFN /
OTCQB:DFMTF / FSE:35D) is pleased to announce that it has received final metallurgical test
results for the Wicheeda Rare Earth Element Property ("
Wicheeda
") from SGS Canada Inc.
("
SGS
"). Results from a total 40 batch flotation tests designed to produce an optimized Wicheeda
process flowsheet through iterative test procedures with varying process conditions informed the
final Locked-Cycle Test ("
LCT
") that successfully produced
(Table 1)
:
48.7% total rare earth oxide (TREO) high grade concentrate of cerium, lanthanum, neodymium,
and praseodymium oxides (Ce
2
O
3
+La
2
O
3
+Nd
2
O
3
+ Pr
2
O
3
)
85.7% TREO metallurgical recovery
10.1 times upgrading ratio from head grade of 4.81% TREO
8.2% concentrate mass yield
According to the SGS Executive Summary for the metallurgical test results,
"Excellent results were
achieved through the flotation process, including a high scale-up ratio, to a high-grade concentrate
at high recoveries. The downstream hydrometallurgical process is expected to benefit significantly
from this quality of flotation concentrate grade"
(See Table 2 provided by SGS).
Craig Taylor
, CEO of Defense Metals, stated;
"With assays coming shortly from our 2019 drill
program and hydromet testing in progress 2020 will be a banner year for Defense Metals."
With the conclusion of SGS flotation testwork Defense Metals has achieved its initial goal of
confirming the reproducibility of previous 2011 metallurgical test work, and improving on those
results by targeting a >40% TREO concentrate grade and >80% recovery. The Wicheeda testwork
flowsheet evaluated well-established direct froth flotation, which ultimately produced strong rare
earth mineral beneficiation performance, and there remains very good potential to further simplify the
flowsheet and reduce operational cost with further optimization of grind size, conditioning/flotation
temperature and depressant dosage.
Table 1: Wicheeda Rare Earth Deposit Locked-Cycle Test Results
Table 1: Wicheeda Rare Earth Deposit Locked-Cycle Test Results (CNW Group/Defense Metals
Corp.)
Batch flotation testwork was designed to evaluate the 2011 flowsheet, to further optimize the final
Wicheeda flowsheet towards de-risking full-scale pilot plant processing of the entire 30 tonne bulk
sample. Batch tests successfully quantified the effects of replacing analytical grade reagents with
commercial reagents (collector/activators), varying reagent dosage, flotation kinematics, desliming
methods, temperature, grind size, alternative depressant, and water chemistry.
Optimum conditions developed in 2 kg batch flotation tests were successfully scaled-up to generate
10 kg concentrate production tests, where the best test (B19) produced a concentrate grading 52%
TREO with 78% TREO recovery.
In addition to flotation testwork, preliminary heavy liquid separation (HLS) tests on stage-ground (-
250 µm to +106 µm) coarse head material showed good potential for upgrading REO by gravity
separation with gravity concentrate grade of 46.9% TREO and 84.8% TREO recovery.
These are commercial operations and the results of Defense Metals' current results are from
controlled lab testing and are not comparable.
Table 2: Wicheeda Metallurgy Compared to Worldwide REE Mines
(1)(2)
Table 2: Wicheeda Metallurgy Compared to Worldwide REE Mines (CNW Group/Defense Metals
Corp.)
1
Verbaan, N., Bradley, K., Brown, N., and Mackie, S., 2015 A review of hydrometallurgical flowsheets considered in current REE projects. In: Simandl G.J. and Neetz, M. (Eds.).
Symposium on Strategic and Critical Materials Proceedings. November 13-14, 2015, Victoria, British Columbia Ministry of Energy and Mines, British Columbia Geological Survey
Paper 2015-3, pp. 147-162.
2
These are commercial operations and the results of Defense Metals' current results are from controlled lab testing and are not comparable.
About the Wicheeda REE Property
The 1,780 hectare Wicheeda REE Property, located approximately 80 km northeast of the city of
Prince George, British Columbia
, is readily accessible by all-weather gravel roads and is nearby to
infrastructure, including power transmission lines, the CN railway and major highways.
Geologically, the property is situated in the Foreland Belt and within the Rocky Mountain Trench, a
major continental geologic feature. The Foreland Belt contains part of a large alkaline igneous
province, stretching from the Canadian Cordillera to the southwestern
United States
, which includes
several carbonatite and alkaline intrusive complexes hosting the Aley (niobium), Rock Canyon (REE),
and Wicheeda (REE) deposits.
The Wicheeda REE Property is underlain by Kechika Group metasedimentary rocks that are
intruded by the southeast-trending Wicheeda carbonatite; a deformed plug or sill approximately 250
metres in diameter that hosts significant REE mineralization. This intrusion comprises a ferroan
dolomite carbonatite core, which passes gradationally outward into calcite carbonatite. The REE
mineralization is primarily hosted by the dolomitic carbonatite.
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
. Mr. Raffle verified the data disclosed which includes a review of the analytical and test
data underlying the information and opinions contained therein.
Methodology and QA/QC
The Wicheeda flotation test charges were prepared by SGS from the 30 tonne Wicheeda sample
which was crushed to nominal 12.7 mm (1/2") using a combination of jaw and cone crushers. The
crushed material was homogenized using a front-end loader over a period of several hours.
Approximately 300 kg (two drums) of crushed material was collected by selecting 5-10 kg aliquots
from random location in the homogenized pile.
A sub-sample of the head sample was submitted for abrasion index testing, and the remainder
crushed to 100% passing 12.7 mm and 25 kg sample was taken for Bond Rod Mill Work Index
(RWI) AND Bond Ball Mill Work Index (BWI) testwork. The resto of the sample was further crushed
to 100% passing 3.3 mm. The less than 3.3 mm sample was split into 2 kg and 10 kg charges for
batch and bulk concentrate flotation production tests. Flotation charges were stage-ground to 100%
passing 106 µm or 150 µm based on mineralogical data and SGS's prior experience with REE
flotation testwork programs.
For the locked-cycle test, a stability check reveals that reasonable stability was achieved quickly for
all elements, and three cycles were deemed suitable for projected mass balance calculation, to
simulate the metallurgical performance that would be achieved in a continuous operation.
Head grade, batch, and locked-cycle concentrate products for cerium, lanthanum, neodymium and
praseodymium oxides were determined via lithium-borate fusion of a 0.5 gram sample analyzed via
wavelength dispersion X-ray fluorescence (WD-XRF). The remaining rare earth elements for the
head sample were determined via 0.5 gram sodium-peroxide fusion multi-element ICP-MS.
The SGS analysis included a quality assurance / quality control (QA/QC) program including the
insertion of rare earth element standard and blank samples. Defense Metals detected no significant
QA/QC issues during review of the data. Defense Metals is not aware of any drilling, sampling,
recovery or other factors that could materially affect the accuracy or reliability of the data referred to
herein. SGS Minerals Lakefield is an ISO/IEC 17025 and ISO9001:2015 accredited. SGS is
independent of Defense Metals Corp.
About
Defense Metals Corp.
Defense Metals Corp. is a mineral exploration company focused on the acquisition of mineral
deposits containing metals and elements commonly used in the electric power market, military,
national security and the production of "GREEN" energy technologies, such as, high strength alloys
and rare earth magnets. Defense Metals has an option to acquire 100% of the 1,780 hectare
Wicheeda Rare Earth Element Property located near
Prince George, British Columbia
, Canada.
Defense Metals Corp. trades in
Canada
under the symbol "DEFN" on the TSX Venture Exchange, in
the United States
, under "DFMTF" on the OTCQB and in
Germany
on the Frankfurt Exchange under
"35D".
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is
defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy
or accuracy of this news release.
Forward Looking Information
This news release includes certain statements that constitute "forward-looking information or
statements" within the meaning of applicable securities law, including without limitation, Defense
Metals plans for its properties/ projects, metallurgical testing and results, receipt of assays from
drilling, other statements relating to the technical, financial and business prospects of Defense
Metals and its properties, and other matters.
Forward-looking statements address future events and conditions and are necessarily based upon a
number of estimates and assumptions. These statements relate to analyses and other information
that are based on forecasts of future results, estimates of amounts not yet determinable and
assumptions of management. Any statements that express or involve discussions with respect to
predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or
performance (often, but not always, using words or phrases such as "expects" or "does not expect",
"is expected", "anticipates" or "does not anticipate", "plans", "estimates" or "intends", or stating that
certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur or be
achieved), and variations of such words, and similar expressions are not statements of historical fact
and may be forward-looking statements. Forward-looking statement are necessarily based upon a
number of factors that, if untrue, could cause the actual results, performances or achievements of
Defense Metals to be materially different from future results, performances or achievements express
or implied by such statements. Such statements and information are based on numerous
assumptions regarding present and future business strategies and the environment in which Defense
Metals will operate in the future, including the price of metals, anticipated costs and the ability to
achieve goals, that general business and economic conditions will not change in a material adverse
manner, that financing will be available if and when needed and on reasonable terms, and that third
party contractors, equipment and supplies and governmental and other approvals required to
conduct Defense Metals planned exploration activities will be available on reasonable terms and in a
timely manner. While such estimates and assumptions are considered reasonable by the
management of Defense Metals, they are inherently subject to significant business, economic,
competitive and regulatory uncertainties and risks.
Forward-looking statements are subject to a variety of risks and uncertainties, which could cause
actual events, level of activity, performance or results to differ materially from those reflected in the
forward-looking statements, including, without limitation: (i) risks related to uranium, rare earth
elements, and other commodity price fluctuations; (ii) risks and uncertainties relating to the
interpretation of exploration results; (iii) risks related to the inherent uncertainty of exploration and
cost estimates and the potential for unexpected costs and expenses; (iv) that resource exploration
and development is a speculative business; (v) that Defense Metals may lose or abandon its
property interests or may fail to receive necessary licences and permits; (vi) that environmental
laws and regulations may become more onerous; (vii) that Defense Metals may not be able to raise
additional funds when necessary; (viii) the possibility that future exploration, development or mining
results will not be consistent with Defense Metals expectations; (ix) exploration and development
risks, including risks related to accidents, equipment breakdowns, labour disputes or other
unanticipated difficulties with or interruptions in exploration and development; * competition; (xi) the
potential for delays in exploration or development activities or the completion of geologic reports or
studies; (xii) the uncertainty of profitability based upon Defense Metals history of losses; (xiii) risks
related to environmental regulation and liability; (xiv) risks associated with failure to maintain
community acceptance, agreements and permissions (generally referred to as "social licence"),
including local First Nations; (xv) risks relating to obtaining and maintaining all necessary government
permits, approvals and authorizations relating to the continued exploration and development of
Defense Metals projects; (xvi) risks related to the outcome of legal actions; (xvii) political and
regulatory risks associated with mining and exploration; (xix) risks related to current global financial
conditions; and (xx) other risks and uncertainties related to Defense Metals prospects, properties
and business strategy. These risks, as well as others, could cause actual results and events to vary
significantly.
Factors that could cause actual results to differ materially from those in forward looking statements
include, but are not limited to, continued availability of capital and financing and general economic,
market or business conditions, the loss of key directors, employees, advisors or consultants,
adverse weather conditions, increase in costs, equipment failures, litigation, failure of counterparties
to perform their contractual obligations and fees charged by service providers. Investors are
cautioned that forward-looking statements are not guarantees of future performance or events and,
accordingly are cautioned not to put undue reliance on forward-looking statements due to the
inherent uncertainty of such statements. The forward-looking statements included in this news
release are made as of the date hereof and Defense Metals disclaims any intention or obligation to
update or revise any forward-looking statements, whether as a result of new information, future
events or otherwise, except as expressly required by applicable securities legislation.
SOURCE
Defense Metals Corp.
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For further information:
Todd Hanas, Bluesky Corporate Communications Ltd., Vice President,
Investor Relations, Tel: (778) 994 8072, Email: [email protected]
CO: Defense Metals Corp.
CNW 14:42e 24-OCT-19