Journal Beneficiation Studies on Low Grade Manganese Ore Fines from Sandur Region, Karnataka, India.

A low grade ferruginous Mn ore assaying 21.77%Mn and 28.53%Fe mines of Sandur region was subjected to amenability to beneficiation process comprising of-wet screening over 10, 6, 3, 1mm-split jigging of screen over sizes in a mineral jig, -crushing of jig tails to-1mm-magnetizing reduction roasting of crushed jig tails and natural minus 1 mm powder 600°C for 0.5 hour with 10% coal reductant followed by water quenching and wet low intensity magnetic separation to remove ferruginous impurities yielded a composite concentrate assaying 32.36% Mn, 21.53% Fe, 1.5 Mn/Fe ratio with 68.7% Mn distribution at 46.2 wt.% yield meets the specifications of metallurgical industry after suitably agglomerating the concentrate.