The causes for the extracting rate of gold and silver from immersed copper sediment influenced by cyaniding conditions are chiefly investigated,and the best cyaniding conditions to increase the extracting rate of gold and silver are proposed as well,with the purpose of providing basis for industrial extraction of gold and silver.

Study on flotation recovery of elemental sulphur from copper leaching residues;

The study of flotation column reclaim pure sulphur from copper leaching residues

Chemical Phase analysis of Cadmium in Sulfuric Acid Smoke and Leach residue;

The initial study on using copper slag as additional material for cement production;

Eeperiment of molten oxidation iron extraction in copper slag