Abstract:

Copper ore processing plant of Tây Bắc Minerals Joint Stock Company has been in operation to produce metallic copper from copper sulphide ore and copper oxide ore. From copper sulphide ores after processing, have obtained copper concentrate with the content ≥ 20% Cu for the next processing stage. Copper oxide ore, with Cu content of 1-3%, after grinding was put directly into hydrometallurgy process to produce copper; this process requires very high consommation of chemistry (extract agent). Therefore, the economic efciency is not high. The National Institute of Mining-Metallurgy Science & Technology has researched and proposed a reasonable technology process for Sơn La copper oxide ore, solving difculties and perfecting technology at the plant, from that improves economic efciency while minimizing environmental pollution. This is the research result of the research project of experimental production code CNKK.013.19 implemented by the Institute of Materials Science and sponsored by the Ministry of Industry and Trade