METHOD OF SULFATING COBALT

摘要

FIELD: metallurgy of non-ferrous metals; plants for production of cobalt, copper, nickel and other metals and their compounds by sulfating non-ferrous metals. ^ SUBSTANCE: prior to roasting with mixture of sulfur dioxide and oxygen, preliminary stage of oxidizing roasting of pyrite concentrate by oxygen-containing blast is carried out at ratio of 0.42-0.98 nm3O2 per kg of sulfur; procedure is continued for 2-68 s. ^ EFFECT: considerable increase of rate of roasting; increased degree of sulfating of cobalt by approximately 8%. ^ 7 ex