Siliceous Manganese Ore from Eastern India:A Potential Resource for Ferrosilicon-Manganese Production

Author:

Pani Swatirupa1,Dash Nilima2,Mohapatra B.K.2,Singh S.K.2

Affiliation:

1. Academy of scientific and Innovative Research , New Delhi , India

2. CSIR-IMMT , Bhubaneswar , India

Abstract

Abstract Siliceous manganese ore, associated with the banded iron formation occurs in large volume in northern Odisha, India. It is a sub-grade ore containing 21% Mn, 60% SiO2 and 3% Fe, hence do not find any use and considered as waste. Such ore does not respond to any physical beneficiation techniques because of intricate microstructure and poor liberation of Mn-phase. It could only be up-graded to 32% Mn with 36% yield and 52% recovery by processing it through mineral separator followed by WHIMS. Siliceous manganese ore along with calcite and coke in appropriate ratio, when charged to a plasma reactor, a product with slag metal ratio of 2.5:1 was obtained within a period of 10 min. Electron probe micro-analysis of the metal confirmed it to be ferrosilicomanganese while the slag constitute of tricalcium silicate (C3S) with around 5% Mn in adsorbed state.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference12 articles.

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1. A Review of Low Grade Manganese Ore Upgradation Processes;Mineral Processing and Extractive Metallurgy Review;2019-07-29

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