Experimental Research on Desliming and Separation of Gold Mine Tailings

The large amount of fine slime in the tailing often lead to low separation and recycling efficiency during the treatment of gold mine tailing. In order to solve the problem, a new type of multi-conical hydrocyclone is proposed as the desliming and separation equipment for a certain gold mine tailing whose gold grade is 0.45g/t and fine grain content of -15 mu m size is 70%. The experimental results show that the fine grain content of -15 mu m size in the overflow can reach 90% after classification by the hydrocyclone, and the gold grade in the underflow reach 0.75g/t similar to 0.8g/t. It is concluded that by use of the multi-conical hydrocyclone, the fine slime can be removed from the mine tailing and the gold component can be enriched effectively.