Recent Researches on the dressing of Low-Grade Manganese Ores in India

Abstract

A case for the conservation of mineral wealth of India by banning selective mining has been made out. The necessity of beneficiating low-grade manganese ores is emphasized. Results obtained on several ores of different types are given and their beneficiation methods have been indicated. Exhaustive beneficiation tests have shown that enrichment to about 48 per cent Mn can be obtained with good recovery. Garnet can be removed by electrostatic separation. Fundamental studies on the flotability of manganese mineral or garnet to effect concentration are being conducted to examine the possibilities of flotation method of concentration.