| 摘要 |
FIELD: nonferrous metallurgy. SUBSTANCE: method involves calcination of ground ore, hydrochemical working calcined ore with sulfuric acid solution, solution separation from solid residue. After separation potassium chloride is added to solution measured as 70-80% binding dissolved aluminium sulfate (nondissolved with potassium sulfate in solution) to aluminium-potassium alum. Part of alum obtained in the end product is increased by 2.5-fold. Remained aluminium oxide is isolated as aluminium chloride solution exhibiting better coagulating property as compared with that of aluminium sulfate in the known method. EFFECT: increased yield of product. |
