Patent US2176774 - Process of extracting manganese from ore .The invention relates to an improved process for separating manganese from .. Where the third method is used, the ore is first treated with sulphuric acid to form.methods for separation of manganese from ore,methods for separation of manganese from ore,Treatment Methods for Manganese Ores (A.M.D.L. Report No. 169 .manganese ores and the extraction of manganese are described and discussed and a . tion by magnetic or electrostatic separatiOn, or by flotation. After a.
methods for separation of manganese from ore