Roasting of the Sulfide-Zinc Concentrate with Predominant Obtaining of Sulfate Roast for Effective Leaching

摘要

Roasting the sulfide-zinc concentrate with a high silver content is investigated by thermogravi-metric and differential thermal analyses in the mode of polythermal heating. It is shown that roasting at 630 ± 10℃ makes it possible to obtain mostly sulfate roast, which is most suitable for the effective recovery of zinc and other components.