Magnetic and flotation studies of banded hematite quartzite (BHQ) ore for the production of pellet grade concentrate

被引：41

作者：

Das, B. ^{[1
]}

Mishra, B. K. ^{[1
]}

Prakash, S. ^{[1
]}

Das, S. K. ^{[1
]}

Reddy, P. S. R. ^{[1
]}

Angadi, S. I. ^{[1
]}

机构：

[1] CSIR, Inst Minerals & Mat Technol, Bhubaneswar 751013, Orissa, India

来源：

INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS | 2010年 / 17卷 / 06期

关键词：

hematite; beneficiation; magnetic separation; flotation; pelletizing; DIAMINE FLOTATION; IRON;

D O I：

10.1007/s12613-010-0373-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To identify and establish beneficiation techniques for banded hematite quartzite (BHQ) iron ore, a comprehensive research on BHQ ore treatment was carried out. The BHQ ore was assayed as 38.9wt% Fe, 42.5wt% SiO2, and 1.0wt% Al2O3. In this ore, hematite and quartz are present as the major mineral phases where goethite, martite, and magnetite are present in small amounts. The liberation of hematite particles can be enhanced to about 82% by reducing the particle size to below 63 mu m. The rejection of silica particles can be obtained by magnetic and flotation separation techniques. Overall, the BHQ ore can be enriched to 65.3wt% Fe at 61.9% iron recovery. A flowsheet has been suggested for the commercial exploitation of the BHQ ore.

引用

页码：675 / 682

页数：8

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