A new pretreatment technology of refractory gold ore-mierowave roast;

Study on sulphur-fixing agent used in pretreatment roast of refractory gold ore;

A study on pretreatment of refractory gold ore with ultra fine grinding;

The column leaching experiment of the new technology of preoxidizing the refractory As bearing gold ore with hydrogen peroxide followed by cyanide heap leaching was made.

)on bacterial oxidation process for refractory gold ores are mainly discussed.

The samples of refractory gold ores from Huidong Sichuan province and Bainaimiao Inner Mongolia are gold bearing arsenopyrite and pyrite ores .

Current status of studies and applications of bacterial pre-oxidation and leaching of refractory gold ores were introduced, and leaching mechanism, process parameters, technological flowsheet and etc.

Research on gold extraction process for Dongbeizhai refractory gold ore;

The latest advance in treatment of refractory gold ore by roasting technology;

Study on a new process of lime roasting——cyanide leaching of refractory gold ores;

Some basic theories on the optimum design of refractory ore digestion equipment were investigated.

Experimental research on heap leaching bio-oxidation cyanidation of refractory gold concentrate;

Study on bacterial pre-oxidation of pyrite inclusion type of refractory gold concentrate;

Study on the technology of bacterial pre-oxidation of a certain refractory gold concentrate;