Ucore Confirms Effectiveness of XRT Ore Sorting at Production Scale
06 Marzo 2012 - 3:50PM
Marketwired
Ucore Rare Metals Inc. (TSX VENTURE:UCU)(OTCQX:UURAF) ("Ucore" or
"the Company") is pleased to announce the completion of bulk scale
ore sorting beneficiation studies on samples from the Bokan
Mountain deposit on Prince of Wales Island in Alaska, USA.
Three one tonne samples from alternative locations within the
deposit were sent to Commodas Ultrasort of Wedel, Germany and
processed by a full-scale production dual energy x-ray transmission
sorter. Results show that 46% of the feed could be rejected as
waste with 93% recovery of rare earth oxides. This indicates the
potential to have a significant positive effect on the capital and
operating costs of the project. Further tests are underway to see
if these results can be further refined.
"The confirmation that the XRT ore sorting technology can be
effective on a production scale machine is a tremendous development
for the Company," noted Jim McKenzie, President & CEO of Ucore.
"The XRT technology shows the clear potential to dramatically
reduce the amount of material feeding into a mill at Bokan and is
an excellent first step in the metallurgical flowsheet which is
currently being refined for inclusion in our upcoming PEA."
Similar sorting results were achieved in initial scoping studies
on selected samples of core. Based on the evaluation of the results
of the scoping studies, Ucore authorized continued studies with a
large sized sample, on commercial scale equipment. Three one-tonne
bulk samples were collected from trenches across the deposit by
Ucore geologists, originating at three different locations. The
three samples were individually crushed and screened into fractions
suitable for sorter testing, bagged individually and packaged for
shipment. The samples were shipped to Commodas Ultrasort, in Wedel,
Germany.
The screened samples were then processed by Commodas on a
full-scale dual energy x-ray transmission (DEXRT) sorting unit.
Separation studies were conducted by Commodas technicians and
observed by Mr. Edwin H. Bentzen III of Lyntek Inc. A mineralized
product and a barren waste were generated from each sample and each
screen fraction. All the products from the sorting studies were
individually bagged and sent to Hazen Research, Inc. in Golden,
Colorado, USA. At Hazen each of the products from the sorter
studies were weighed, crushed and a representative portion of each
was pulverized for chemical analyses. The chemical analyses of each
sample were conducted by Activation Labs (ActLabs) in Ancaster,
Ontario, Canada.
The plus 1/4-inch screen fractions of sample from an area of the
deposit, designated "Zone 28", with a calculated TREE+Y rare earth
elemental content of 0.873%, were treated on the commercial scale
sorter at feed rates up to 40-TPH. The mineralized products
collected from the sorter operations, combined with the 1/4-inch
screen undersize (not sorted) product recovered 94.4% of the TREE+Y
in the sample while rejecting 44.4% of the sample weight. The
sorted mineralized fractions are currently being subjected to
further physical beneficiation by magnetic separation. Final
physical beneficiated mineralized concentrates will then be
subjected to acid leaching and separation of the TREE+Y values.
Mr. Edwin H. Bentzen III, Senior Project Manager of Lyntek Inc.,
Lakewood, Colorado, has prepared the technical data relative to
this press release and is the qualified person responsible for its
accuracy.
Background
Ucore Rare Metals Inc. is a well-funded junior exploration
company focused on establishing REE, uranium and other rare metal
resources through exploration and property acquisition. With
multiple projects across North America, Ucore's primary focus is
the Bokan - Dotson ridge REE property in Alaska. The Bokan - Dotson
ridge REE project is located 60 km southwest of Ketchikan, Alaska
and 140 km northwest of Prince Rupert, British Columbia and has
direct ocean access to the western seaboard and the Pacific Rim, a
significant advantage in expediting mine production and limiting
the capital costs associated with mine construction. The Bokan
properties are located in an area reserved for sustainable resource
development with an existing road network providing access to the
main target areas.
Contacts: Ucore Rare Metals Inc. Mr. Jim McKenzie President and
Chief Executive Officer (902) 482-5214 www.ucore.com
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