Regularities of Sulfatization of Lead Sulfide In the Composition of the Cu-Zn-Pb Concentrate

摘要

The chemical and phase compositions of the Cu-Zn-Pb concentrates of the Rubtsovsk dressing works and products of their sulfuric acid treatment in the presence of oxidant Fe_2(SO_4)_3 are investigated. It is shown that the sulfatization of natural galenite in acidified Fe(III) solutions in the initial period proceeds in the kinetic region and is further limited by diffusion. The revealed regularities of the sulfatization of galenite were confirmed when leaching a concentrate of the Rubtsovsk deposit in similar conditions. The data on the composition and yield of obtained products are presented.