Feasibility of Producing Pellet Grade Concentrate by Beneficiation of Iron Ore Slime in India

Authors: Roy, S.¹; Das, A.¹; Mohanty, M. K.²

Source: Separation Science and Technology, Volume 42, Number 14, January 2007 , pp. 3271-3287(17)

Buy & download fulltext article:

Price: $56.94 plus tax (Refund Policy)

Abstract:

Beneficiation of low grade iron ore slime from Chitradurga, India was studied with a view to produce pellet grade fines. The slime sample had a feed grade of 49.86% total Fe, 7.93% Al2O3, and 10.19% SiO2. Kaolinite and quartz was found to be the main gangue minerals and they formed porous and friable oxide and hydroxide of iron. Over 54% of the materials in the slime were less than 20 micron and this size fraction contained higher percentage of gangue minerals. Liberation of free gangue minerals was observed to be substantial in all size classes. Beneficiation studies indicated that excellent rejection of silica and alumina could be obtained through physical separation. The low grade slime could be enriched to 66.36% Fe with 1.75% silica, and 1.44% alumina.

Keywords: Iron ore slime; characterization; beneficiation; pellet grade; flowsheet development

Document Type: Research article

DOI: http://dx.doi.org/10.1080/01496390701514824

Affiliations: 1: MNP Division, NML, Jamshedpur, Jharkhand, India 2: Dept. of Mining and Mineral Resources Engineering, SIU, Carbondale, IL, USA

Publication date: 2007-01-01