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Columbia Metals Report - October 30, 2007
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Columbia Metals Purchases Heavy Equipment for Lluvia de Oro Gold Mine
Columbia Metals Corp. Ltd. (TSX-V: COL), (the "Company") is
pleased to announce the acquisition of a Nordberg NW-1415 VFR portable impact
crushing plant from Excel Machinery Corp. of Amarillo, TX. This equipment
item is critical to the company's plan of pursuing commercial production, in
the near term, at the past producing Lluvia de Oro
gold mine.
The unit is a 1997 model, equipped with a Cat 3406 525 HP diesel engine,
a 48" x 20' vibrating grizzly feeder, a pan feeder, six (6) hydraulic legs
with auxiliary power, a four axle chassis and a 42" x 50' portable side
discharge conveyor.
Associated equipment includes:
A. New tow jeep, designed to move the unit.
B. New skid-mounted Cummins 350 KW generator set.
C. Lime system with hopper and rotary feeder.
D. Two new 36" x 50' 20 HP field grasshopper conveyors.
E. New Thor computer-operated, 36" x 150' powered radial stacker.
F. Electrical system for operating the equipment.
This crusher will be used to reduce the partially-leached ore on the Lluvia de Oro heap to a nominal minus 1 inch size. The
original metallurgical test work, which was conducted prior to the commencement
of leaching operations in April 1996, indicated that at a nominal crush size of
minus 1 inch,
a recovery of 81% gold could be achieved.
SART (Sulphidisation-Acidification-Recycling-Thickening)
copper recovery circuit
As previously announced, Columbia Metals has signed an agreement with BioteQ Environmental Technologies (TSX: BQE) for reagent
treatment and re-generation. Under the terms of the agreement BioteQ will finance, build, own and operate a treatment
plant that will recover dissolved copper from solution and re-generate the
reagent for use in the heap leach gold extraction process. The plant is
designed to use the SART (Sulphidisation-Acidification-Recycling-Thickening)
process developed by SGS Lakefield Research and Teck
Cominco, in combination with BioteQ's sulphide
technology.
The civil contract for construction of the SART copper precipitation
circuit has been awarded to Akiwiki
Construcciones, S.A. de C.V, a division of Constructora
Garaco, S.A. de C.V. of Hermosillo, Mexico.
The scope of the contract covers site excavation, electrical grounding, and
reinforced slab (1575 sq. mt.) and foundation
construction. Work commenced during the week of October 29 with an expected
completion date in December of 2007. Installation of tanks and mechanical
components will follow the completion of worksite preparation. Completion
of the SART plant is scheduled for the first quarter of 2008, just subsequent
to first planned gold production at the site.
This release has been prepared by Vernon E. Smith, P.Eng.,
General Manager Magdalena Operations for Minera
Columbia, S.A. de C.V. in Sonora State, Mexico, a wholly-owned subsidiary of
Columbia Metals Corp. Ltd. (TSX-V: COL).
For further information please contact Columbia Metals Corporation
Limited at (416) 364-6799.
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