METHOD OF OPENING SULFIDE MOLYBDENUM CONCENTRATES AND RECOVERY OF MANGANESE FROM PYROLUSITE

摘要

FIELD: chemical industry. SUBSTANCE: invention describes method of opening molybdenum and recovery of manganese from pyrolysite by combined treatment thereof in sulfuric acid solutions. Treatment is carried out in autoclave at 150-200 C and molar ratio of 1:4-8 for 2-6 hr in one stage at initial sulfuric acid concentration of 10-25%. EFFECT: more efficient opening method. 1 tbl