Abstract:

This article int roduces the history , actuality , difference and problem between the abroad with our in ref ractory gold ore heap bioleaching in tow decade developed. Now still it’s in a alternate test time of laboratory and field . With laboratory test and filed carry out ,in the character of ore , if the ore with high acid consuming ,bad osmosis ,low sulfur and the gold locked by nonmetal ,it’s considered difficult to heap bioleach. In other way , the requirement circumstance and condition for developing of heap bioleaching technology are discussed in the difference of result between in laboratory and filed test , in nature condition and using bacterial , and then some of the suggestion is put forward. Finally , f rom the point of view of the resource ,market condition ,developing experience and using in extend area ( the concent ration heap biooxidation , ref ratory ore heap biooxidation + CIL) , a fine future is affirmed in ref ractory gold resource development with heap bioleaching technology.

Key words: refratory gold ore, heap bioleaching, problem, suddestion