PROCESS FOR PRODUCING MANGANESE DIOXIDE

摘要

Manganese dioxide having high bulk density, high tap density and high activity for use in batteries can be obtained by decomposing an aqueous solution of ammonia complex of manganese at a temperature of 68 DEG C. or higher than roasting the resulting manganese carbonate in an atmosphere of oxygen and 15-85% of steam at a temperature of 275 DEG to 375 DEG C.