In order to solve the problem that the leaching recovery of gold is always a bit low in the Geerke gold mineral processing plant, Maqu, Gansu province, CIL experiment and its optimization experiment, rich-oxygen leaching experiment were conducted on the site.

Flotation and tailing to cyanidation replaced the formal all-slime cyanidation and CIL,Raising gold recovery from 50.

Operation practice of a concentration plant where the process flow of gravity concentration/all-sliming cyanidation is employed;