Case Study on Beneficiation of Cassiterite-Polymetallic Sulphide Ores

摘要

Cassiterite-polymetallic sulphide ore contains multi-elements that can be recovered in beneficiation. Case studies on processing two major tin deposits in Gejiu and Dachang regions are reviewed. Results show that the joint process of flotation and gravity separation has proven to be effective in treating the ores for its high efficiency and relatively small environmental impact. Flotation of tin minerals is considered as a supplementary technique for concentrating cassiterite from the slime produced in the joint process. The joint process is still a promising process in treating the cassiterite-polymetallic sulphide ore.