%0 Journal Article
%T Influence of Microstructure on Beneficiation of Low-Grade Siliceous Manganese Ore from Orissa, India
%A Patitapaban Mishra
%A Birendra Kumar Mohapatra
%A Pradeep Kumar Mallick
%A Khageswar Mahanta
%J Journal of Minerals and Materials Characterization and Engineering
%P 80-84
%@ 2327-4085
%D 2013
%I Scientific Research Publishing
%R 10.4236/jmmce.2013.13015
%X Two low-grade siliceous manganese ores such 1) siliceous crystalline and 2) siliceous cherty types from north Orissa, Indiawas mineralogically characterized and investigated for their possible upgradation. Both the Mn-ore types were subjected to different physical beneficiation techniques under identical conditions and results reported. The results revealed that in the case of low-grade siliceous crystalline type Mn-ore a feed having 26% Mn could be upgraded to more than 45% Mn by dry magnetic separation with 69% recovery at 1.00 tesla magnetic intensity. But the cherty type Mn-ore could not respond well to any of the beneficiation techniques, particularly dry magnetic separation, because of poor liberation even at a size fraction below 100 mesh, though the other type gives best result at this size fraction.
%K Siliceous Manganese Ore
%K Microstructure
%K Beneficiation
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=31717