SOURCE: Columbia Metals Corporation Ltd.

October 30, 2007 08:30 ET

Columbia Metals Purchases Heavy Equipment for Lluvia de Oro Gold Mine

TORONTO--(Marketwire - October 30, 2007) - 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.

The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.

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Contact Information

  • Contact:
    Columbia Metals Corporation Limited
    402 - 121 Richmond Street West
    Toronto, Ontario
    Canada, M5H 2K1
    Phone: (416) 364-6799
    Fax: (416) 364-2595