PROCESS FOR PREPARING MANGANESE DIOXIDE OF γ- MODIFICATION Russian patent published in 1995 - IPC

FIELD: electrical engineering. SUBSTANCE: preparation of manganese dioxide involves the steps of preparing an additive by mixing manganese trioxide with an aqueous solution of manganese nitrate or sulfate and with an appropriate acid, mixing the resulting reaction mixture with manganese trioxide, mixing the resulting mixture with an acid in amounts equal to the original feed, and recovering the desired form one third of the weight amount of the reaction mixture. The process makes it possible to make the high quality desired product without pressing and grinding. The bulk weight of the product is 2,05-2,13 g/cm³. EFFECT: greater efficiency of the process. 2 tbl