| abstract |
Disclosed is a bacterial liquid of microbial combinations for biometallurgical leaching of copper ore and a method for recovering metallic copper therefrom. A microbial leaching combination, after undergoing adaptive culture, continuous amplification culture and ore heap adaptive culture, is used for leaching, with different leaching methods being applied for different ore types, these methods comprising biometallurgical processing methods for lump ore, ore fines, ore tailings and copper smelting-furnace slag. The standard leachate so obtained renders two products, being subjected to extraction-electrotwinning to obtain cathode copper and to short-process replacement to obtain sponge copper. The method is suitable for industrial production under different conditions while enabling high-efficiency exploitation of low-grade copper ores and protection of the ecological environment of mining areas, thus being favorable for economic and environmental reasons. |