Abstract:

Introduce our country's reserves, distribution and general utilizat ion status of diff icult deal gold mine resource, plus pressured by roast in the whole world and all kinds of technologies of industrial used after biosynthesis oxidation pre-dealt. According to a certain gold mine of Guangxi, via the use of bacterial oxidation(high As-resistant)of gold concentrate containing rich As and S, and testing conditions of refining gold with cyanide. We have achieved ideal lixiviat ion index, which reached 94.17%.

Key words: difficult filter gold concentrate, bacterial oxidation, refine gold with cyanide