The cobaliferous stockpiles at Kasese to be processed by the new plant. In due course they will vanish and be replaced by a non-toxic slimes dam.


Kasese cobalt project

In early August 1997 Bateman Minerals & Industrial Limited (BMI) started work on the detailed design and construction of a cobalt process plant, infrastructure and a tailings dam close to the old Kilembe copper mine in south-western Uganda.

The plant will produce about 1 000 tonne of cobalt metal per year, over a period of about 11 years.

The first team of BATEMAN personnel at the site has set up the infrastructure for this fast-track project aimed at commissioning the plant in the last quarter of 1998. Most of the main orders were placed by the end of October 1997 by which time detail engineering was well underway. In November the civil contractor started the earth works and poured the first concrete in February. Because of the remoteness of the site, an office has been set up in Kampala to facilitate communications and overcome logistics problems.

BATEMAN is providing the detailed engineering, procurement and construction management for Kasese Cobalt Company Limited, a subsidiary of Banff Resources of Canada which is owned by La Source, the French based mining company controlled by Normandy of Australia and BRGM.

The process involves the bacterial leaching of cobaltiferous pyrite, neutralisation with limestone to remove acid and iron, removal of copper and nickel as saleable hydroxides with the purification and recovery of cobalt by solvent extraction and electrowinning. The plant is unique and, so far as is known, will be the first to employ bacterial leaching coupled with solvent extraction and electrowinning of cobalt. BATEMAN is also supplying the cobalt electrowinning engineering design package.

The cobaltiferous stockpile is situated in the foothills of the Ruwenzori Mountains adjacent to the Queen Elizabeth National Park, some 12 km from the Kilembe mine. The stockpile has over the years been partially eroded causing widespread damage to the surrounding area. The treatment of the stockpile will remove this source of pollution and leave a residue in safely contained purpose designed dams. On completion of the project all traces of the plant will be removed and the entire site grassed over.

For further information, please contact Nick Haywood, BMI Project Manager, on +27-11-899-3269 or email nhaywood@bmi.co.za

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