Critical Elements Corporation: Metallurgy of the Rose Deposit Lithium Recovery of 90.7% at a Grade of 5.87% Li2O and Tantalum...
16 Agosto 2011 - 11:17AM
Marketwired
Critical Elements Corporation (TSX VENTURE: CRE)(OTCQX:
CRECF)(FRANKFURT: F12) is pleased to report the last results of the
metallurgical testing program for its Rose deposit, James Bay,
Quebec.
Results from the metallurgical testing program for the treatment
of the Rose Deposit were provided by Acme Metallurgical Limited of
Vancouver.
The tests were carried out on a composite from mineralized drill
cores from sections 0+60 W to 4+80 E which were encountered above a
depth of 100 metres from surface, as of January 2011, thus
providing a highly representative composite of the material to be
mined within the first +/-8 years of operation. These were the
drill holes available at the time that the metallurgical program
was initiated.
The grind size required is coarse at 0.265 mm (265 micrometers)
for full liberation of the spodumene and tantalite. An extensive
program of kinetic flotation determined the best combination of
operating conditions, repeatability of results and simplicity of
processing using a flotation reagents combination of FA-2 (fatty
acid) and other industrial chemicals.
The process consists of coarse grinding followed by rougher
flotation, one cleaner flotation followed by a short scavenger
flotation circuit. Desliming is not necessary.
The final flotation results obtained were a recovery of 90.7%
for lithium at a grade of 5.87% Li(2)O and 84.8% for tantalum at a
grade of 1016 ppm Ta(2)O(5), without recycling. Recycling to be
tested later may improve results further.
The grades obtained in the concentrate, including for all other
contained elements, are in the normal range for the production of
lithium chemicals by the common processes used industrially
(Li(2)CO3, LiOH or LiF).
Preliminary tests have indicated that the tantalite can be
separated from the spodumene by magnetic separation to produce a
high grade tantalite concentrate. Further tests are being performed
in Vancouver. Results will be published shortly.
In parallel to this program, an additional testing program is
presently being carried out in China.
"These positive results are in line with the high quality low
risks mining project scenario that the major consumers in the
critical metals markets are looking for," stated Jean-Sebastien
Lavallee, President & CEO of Critical Elements Corporation.
About Critical Elements Corporation
Critical Elements is actively developing its 100%-owned Rose
lithium-tantalum flagship project located in Quebec. The project
hosts a current new NI 43-101 compliant Indicated resource of 26.5
million tonnes of 1.30% Li(2)O Eq. or 0.98% Li(2)O and 163 ppm
Ta(2)O(5) and Inferred resource of 10.7 million tonnes of 1.14%
Li(2)O Eq. or 0.86% Li(2)O and 145 ppm Ta(2)O(5).
Critical Elements has commissioned a prefeasibility study for
the project from Genivar, one of the largest independent
engineering firms in Canada. Genivar is also doing an environmental
study, and Acme Metallurgical Ltd. of Vancouver is carrying out
project metallurgy.
Critical Elements' portfolio also includes rare-earth and
tantalum-niobium projects in the Rocky Mountains of British
Columbia and in Quebec, as well as a 50% interest in the Croinor
project, which is located in Quebec and hosts a current NI 43-101
compliant measured and indicated resource of 814,228 tonnes at 9.11
g/t Au, for 238,414 ounces of gold at a 5 g/t cut-off.
Jean-Sebastien Lavallee (OGQ #773), geologist, shareholder and
president and chief executive officer by interim of the Company and
a Qualified Person under NI 43-101, has reviewed and approved the
technical content of this release.
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 release.
Contacts: Jean-Sebastien Lavallee, P.Geo. President and Chief
Executive Officer 819-354-5146 president@cecorp.ca Paradox Public
Relations 514-341-0408
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