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MEI Online: Plant Operation News: Africa: January 17th 2005


Click for more info on Process Mineralogy '20


:: Kansanshi Begins Production

First Quantum Minerals has begun commercial production at the Kansanshi copper-gold mine in Zambia, with both the oxide and the sulphide circuits having reached more than 65% of their original design capacity. The oxide circuit at Kansanshi has a design throughput of 4 Mt/a. Additions to the sulphide circuit during construction have doubled the sulphide capacity to 4 Mt/a, and a US$29 million capital programme will further expand the sulphide circuit to 8 Mt/a capacity, resulting in an average finished copper production of 145 kt/a during 2006-2009. First Quantum has been investigating alternative treatment routes for the increased concentrate production, and has purchased a complete 'second-hand' pressure oxidation facility which will be reconstructed on-site. This technology will generate much of the acid required for oxide leaching, as well as enable the leach circuit to operate at elevated temperatures. A full report of the impact of this processing route is being prepared by Bateman Engineering.




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