中温嗜热菌氧化含砷硫金精矿应用近况

Advance in application of mesothermophilic bacteria to oxide arsenopyrite and pyrite containing gold concentrate

澳大利亚犹安密矿应用中温嗜热菌氧化高砷、高硫金精矿 ,每日处理 12 0t精矿的生产厂已从 1994年运行至今。生产运行主要指标 :砷氧化率 90 %～ 95% ,黄铁矿氧化率 2 5%～ 30 % ,总硫氧化率 32 % ,金氰化率 97%

The mesothermophilic bacteria has been used in Youanmi Mine of Australia to oxide the high arsenopyrite and pyrite containing gold concentrate.A plant treating 120t/d of concentrate has been operated since 1994,and results arsenic oxidation 90～95%,pyrite 25～30%,total sulphur 32% and gold cyanidation 97%.