Pacific North West Capital Reports Positive Platinum Metal Concentration Results for River Valley PGM Project near Sudbury, O...
April 10 2013 - 8:01AM
OTC Markets
Vancouver, British Columbia, April 10, 2013 -- Pacific North
West Capital Corp. (TSX: PFN; OTCQX: PAWEF; Frankfurt: P7J) is
pleased to report positive metallurgical testwork results for drill
core composites from its 100% owned River Valley PGM deposit, near
Sudbury in Ontario. The testwork completed by SGS Canada Inc. (SGS)
of Lakefield, Ontario, involved Bond grindability and abrasion
studies, sample compositing, physical and chemical analyses, and
bench scale flotation tests to make high-grade sulphide
concentrate. Results show that the platinum group metals (PGM)
float with copper-nickel sulphides, and therefore demonstrate
potential for a sulphide concentrator to effectively process River
Valley deposit material. SGS recommend additional testwork to
determine the optimal grind size for PGM separation and further
improve concentrate grade and metal recovery. A copy of the SGS
report is available for viewing on the Company's website.
"PFN is very encouraged by these initial metallurgical results,
which demonstrate good metal recoveries from the River Valley PGM
deposit", said Dr. William Stone, President & COO. "The results
are close to North American Palladium's Lac des Iles Mine results
during operation of their big open pit mine. However, more
extensive testwork on River Valley is required to improve metal
recoveries. The PGM mineralization extends for 10 km along strike
and shows high-grade pods, patches and domains which extend from
surface to the depth of drilling, generally less than 250 metres
deep. In evaluating the metallurgical results, the Company plans to
follow-up with expanded testwork and larger sampling programs to
further advance River Valley towards a Preliminary Economic
Assessment study".
TESTWORK RESULTS
Metallurgical testwork was carried out on an Overall Composite
sample prepared from half-core intervals from the Dana North Zone
(DNZ) and the Dana South Zone (DSZ) of the River Valley PGM deposit
(Figure 1). Testwork involved mineralogical and chemical analysis,
Bond Rod and Ball mill grindability, and Bond abrasion testing on
each of the Dana North and Dana South Zone composites.
Mineralogical analysis determined that the main minerals are
amphibole/pyroxene and plagioclase, consistent with gabbro-norite
intrusive host rock type. Chalcopyrite is the sole copper mineral
phase and pentlandite the primary nickel sulphide phase. However,
sulphides hold only 35% to 45% of the total nickel; the remaining
percentage is held in silicates and therefore unrecoverable. The
Bond rod mill grindability tests at 14 mesh of grind (1180
micrometres) identified each of the two composites as very hard,
with Rod Mill Work Index at ~20.0 kWh/t. A Bond ball mill
grindability test at 150 mesh (106 micrometres) identified each of
the two composites as hard to very hard, with a Ball Mill Work
Index of 18.8 kWh/t for DNZ and 19.5 kWh/t for DSZ. The Bond
Abrasion tests determined each composite to be in the moderate to
hard abrasive range.
Flotation testwork was completed on the Overall composite in order
to: 1) develop a viable flowsheet; 2) evaluate parameters such as
primary grind and regrind fineness, reagents and dosages; and 3)
generate a concentrate that targeted a grade of ~200 g/t PGM.
Eleven rougher kinetics tests were performed to evaluate effective
reagents, dosages, flotation time and primary grind fineness.
Cleaner tests were undertaken to investigate cleaner circuit
configuration, depressants and regrind fineness. The best test
produced a concentrate grading 8.94% copper, 1.22% nickel and 109
g/t PGM at recoveries of 86.8% for copper, 26.7% for nickel and
73.1% for PGM.
A single locked cycle test (LCT) was completed applying the
flowsheet and conditions of the final cleaner test (Figure 2). The
primary grind was at P80 = 71 µm and the regrind at P80 = 19 um.
The LCT produced a concentrate grading 15.5% copper, 1.67% nickel
and 189 g/t PGM at recoveries of 84.4% copper, 22.2% nickel and
68.7% PGM (Table 1). The 3rd cleaner concentrate from the LCT was
submitted for multi-element analysis. In addition to platinum,
palladium, gold, copper and nickel, which would all be payable,
rhodium, cobalt and silver are present a levels which are likely
also be payable. Conversely, contents of magnesium, arsenic,
antimony, bismuth, and selenium are all below the problematic
limits for marketability.
RECOMMENDATIONS
SGS make the following recommendations for further testwork on
River Valley:
1. Further investigate the effect of primary grind size on
flotation recovery;
2. Flotation optimization testing in order to achieve further
improvement of concentrate grade and metal recovery; and
3. Flotation and grindability variability testing on the composite
samples in order to identify the variability of flotation
performance. Subsequently, variability testing should be extended
to investigate a broader range of samples from each of the
mineralized zones at River Valley, to investigate the effect of
feed grade and rock type on metallurgy.
Figure 1. The location of the resources on a simplified geological
map of the River Valley property.
Figure 2. Flow sheet for Locked Cycle Test by
SGS.
Table 1. Metallurgical results for the Locked Cycle Test by
SGS.
DANA NORTH AND DANA SOUTH
ZONES
Dana North and Dana South are the two northernmost zones of PGM
mineralization in the River Valley deposit and are readily
accessible via the main access road into the property. The two
mineralized zones have been defined in mapping, trenching and
drilling programs for 1200 metres along strike and up to 400 metres
below surface. At 0.8 g/t PdEq cut-off grade, Dana North and Dana
South collectively contain about 40 Mt grading 1.5 g/t PdEq, all in
measured and indicated resources (see Company website for
details).
QUALIFYING STATEMENTS
The technical content of this new release has been
prepared, reviewed and approved by Dr. William Stone, P.Geo., and
President & COO of PFN, a Qualified Person under the provisions
of National Instrument 43-101. Mr. Al Hayden, P.Eng. and Associate
of NordPro Mine & Project Management Services (Thunder Bay) has
been hired by PFN as its metallurgical consultant to supervise the
study and review results.
About River Valley Project
In January 2011, Pacific North West Capital Corp. successfully
negotiated the 100% acquisition of the River Valley PGM Project
from Anglo Platinum Limited. The River Valley Project is one of the
largest undeveloped PGM deposits in Canada. The project has
excellent infrastructure support and is located within 100 km of
Sudbury, Ontario, Canada's largest nickel-copper-PGM mining and
metal recovery centre. At a cut-off grade of 0.8 g/t PdEq, the
NI43-101 compliant mineral resource estimation for River Valley
contains 91 Mt grading 1.4 g/t PdEq in the measured and indicated
classifications for 2.5 Moz PGM plus Au, and an additional 36 Mt
grading 1.1 g/t PdEq in the inferred classification for 600,000 ozs
PGM plus gold (see Company website www.pfncapital.com and technical
report on www.sedar.com for details).
About Pacific North West Capital Corp
PFN is a mineral exploration company whose philosophy is to be a
project generator, explorer and project operator in order to
option/joint venture its projects through to production. PFN is
focused on the discovery, exploration and development of PGM and
nickel-copper sulphide deposits in geologically prospective regions
in North America, particularly Canada. The Company's key asset is
its 100% owned River Valley PGM Project in the Sudbury region of
northern Ontario. PFN also has PGM and nickel-copper projects and
properties in northwest Ontario, Saskatchewan, and Alaska. The
Company continues to evaluate PGM and nickel-copper properties and
projects in North America for potential acquisition
opportunities.
Please send requests
for further information to:
Vancouver
Office |
Toronto Office |
Harry
Barr |
Bill Stone |
Chairman & CEO |
President &
COO |
Pacific North West Capital
Corp. |
Pacific North West
Capital Corp. |
Tel: 604.685.1870 |
Tel:
1.416.368.5268 |
|
|
On
behalf of the Board of Directors
"Harry Barr"
Harry Barr
Chairman and CEO
For further Information, contact: Tel: +1.604.685.1870 Fax:
+1.604.685.8045
Email: info@pfncapital.com, or visit www.pfncapital.com
650 - 555 West 12th Avenue, Vancouver, B.C., Canada, V5Z
3X7
Neither the TSX nor its Regulation
Services Provider accepts responsibility for the adequacy or
accuracy of this release.
Disclaimer: This news release may contain certain "Forward-Looking
Statements" within the meaning of Section 21E of the United States
Securities Exchange Act of 1934, as amended. All statements, other
than statements of historical fact, included herein are
forward-looking statements that involve various risks and
uncertainties. There can be no assurance that such statements will
prove to be accurate, and actual results and future events could
differ materially from those anticipated in such statements.
Important factors that could cause actual results to differ
materially from the Company's expectations are disclosed in the
Company's documents filed from time to time with The Toronto Stock
Exchange, British Columbia Securities Commission and the United
States Securities & Exchange Commission.
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