Abstract. A new method is described for the production of manganous sulphate from low-grade manganese ores. The ore is first treated with a calculated amount of concentrated sulphuric acid at 200–220° to form manganic and ferric sulphates, and then heated at 500–640° for 90 min.
manganese sulphate production from low grade manganese - Crusher South Africa. TITLE DATE November 2, 2012 manganese sulphate production from low grade manganese 48 (3421 Ratings) Posts Related to manganese sulphate production from low grade manganese manganese sulfate world production manganese sulfate production .