A PROCESS FOR THE EXTRACTION OF ZINC FROM SIKKIM ZINC CONCENTRATE USING THIOBACILLUS FERROOXIDANS

摘要

A process for recovery of zinc and other minor metals from zinc concentrate was invented. The dissolution process takes place at room temperature, atmospheric pressure and lixivant containing 9K" medium along with acidophilic microorganisms. The zinc dissolution kinetics was faster compared to copper. Due to dissolution of pyrite, the acid consumption was less.