Hudson Reports 94% Aluminum Extraction from Initial Leaching Testwork for the White Mountain Anorthosite Project in Greenland
24 Gennaio 2013 - 12:16AM
OTC Markets
HUDSON RESOURCES INC. (“Hudson” or “the Company” – TSX-V: “HUD”,
OTCQX: “HUDRF”) is pleased to announce the following update on the
metallurgical testwork program for aluminum leaching extraction
from its White Mountain anorthosite (calcium feldspar) project in
Greenland. Alumina production is one of three potential revenue
streams Hudson is analysing for the White Mountain project.
The testwork is being undertaken at SGS Canada Inc.’s Lakefield
facility under the direction of Hudson’s consulting metallurgist,
John R. Goode, P.Eng. Initial testwork using hydrochloric acid
(HCl) has demonstrated the high solubility of the anorthosite
material at normal atmospheric pressure and relatively low
temperatures. Aluminum recoveries ranged from 89.7% to 93.7%. The
highest recovery was achieved at a temperature of 110 Celsius and
an HCl strength of 30%. The White Mountain anorthosite rock
averages approximately 30% aluminum oxide (Al2O3) and 1.25% iron
oxide (Fe2O3).
Downstream testwork on leach solutions is ongoing and includes
aluminum chloride precipitation, alumina production and acid
regeneration testing. Once this testwork is completed, Hudson will
initiate a scoping study to determine the preliminary economics of
producing an alumina product and potential silica and calcium
by-products. Testwork is expected to be completed in the second
quarter.
James Tuer, Hudson’s President, stated, “We are very excited with
these initial leach results which demonstrate that recoveries in
excess of 90% aluminum can be achieved using standard technologies
and under moderate conditions. The high solubility of our White
Mountain Anorthosite, which is unique to high calcium feldspars,
makes it an excellent candidate for potential alumina production.
As well as containing high aluminum, it’s low iron content should
help reduce processing costs. With Alcoa proposing an aluminum
smelter in Greenland and three smelters currently operating in
Iceland, we are well positioned to provide alumina to end users if
we can provide it at a competitive price compared to conventional
alumina being produced from bauxite using the Bayer process. It may
also be possible to provide an added benefit by utilizing the 15%
calcium in the rock to capture CO2 and thereby lower greenhouse gas
emissions, which is a key objective of the aluminum industry."
Hudson’s White Mountain anorthosite is relatively unique in that it
has high concentrations of aluminum, silica and calcium, with
little to no contaminants and low iron. Hudson has determined that
the White Mountain anorthosite has three potential industrial
applications:
- As a new source of alumina to supply aluminum smelters;
- As a new source of feedstock to the high end fiberglass (E-glass)
industry; and
- As a new source of filler material. Fillers are a significant
component in the plastics and paints industries.
Hudson commenced exploration on the White Mountain Project in
January 2012 and has completed over 4,300 meters of drilling in 45
drill holes at White Mountain. A resource model is expected to be
completed within the next month. Processing of a 122 tonne bulk
sample is expected to start shortly at the Saskatchewan Research
Council’s pilot plant in Saskatoon. Based on bench scale testing,
the material requires minimal processing: crushing, grinding,
magnetic separation and milling. The processed bulk sample material
will be provided to potential end users in the E-glass industry for
testing in their furnaces. The Company has also initiated baseline
environmental studies with the objective of submitting an
application for a mining license in early 2014.
The White Mountain Project is owned 100% by Hudson. The Project is
located on tidewater approximately 40 km from the Company’s 100%
owned rare earth element (REE) project. White Mountain is
envisioned as an open pit mining operation similar in scope to a
quarry. The Company remains well-financed with approximately $7
million in working capital.
Dr. Michael Druecker is a qualified person as defined by National
Instrument 43-101 and reviewed the preparation of the scientific
and technical geological information in this press release.
John R. Goode is the Qualified Person as defined by National
Instrument 43-101 who reviewed the preparation of the scientific
and technical metallurgical information in this press release.
BY ORDER OF THE BOARD OF DIRECTORS
"James Tuer"
James Tuer, President
Grafico Azioni AnorTech (PK) (USOTC:HUDRF)
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Grafico Azioni AnorTech (PK) (USOTC:HUDRF)
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