Study on the Jarosite Process in Zinc Hydrometallurgy

Jarosite process can effectively extract zinc from zinc concentrate with high concentration of iron,arsenic and antimony.Jarosite slag forming is the key step in the process.It not only forms the jarosite slag riched indium,but also can supply solution which can be used in neutral leaching.The main purpose is to remove iron,indium,excessive SO2-4 and some other impurities.Jarosite process to handle zinc concentrate with high concentration of iron and indium was studied,the variation of impurities in the process was obtained,also,the mechanism was preliminary analyzed.The result show that 92.3% zinc entered in solution,94.87% indium,97.80% iron and the most of arsenic and antimony entered to the slag.