BENEFICIATION OF AZARA BARITE ORE USING A COMBINATION  OF JIGGING, FROTH FLOTATION AND LEACHING

HE Mgbemere; EO Obidiegwu; E Obareki

doi:10.4314/njt.374.1857

BENEFICIATION OF AZARA BARITE ORE USING A COMBINATION OF JIGGING, FROTH FLOTATION AND LEACHING

Authors

HE Mgbemere DEPT. OF METALLURGICAL AND MATERIALS ENGINEERING, UNIV. OF LAGOS, AKOKA, LAGOS STATE, NIGERIA
EO Obidiegwu DEPT. OF METALLURGICAL AND MATERIALS ENGINEERING, UNIV. OF LAGOS, AKOKA, LAGOS STATE, NIGERIA
E Obareki DEPT. OF METALLURGICAL AND MATERIALS ENGINEERING, UNIV. OF LAGOS, AKOKA, LAGOS STATE, NIGERIA

DOI:

https://doi.org/10.4314/njt.374.1857

Keywords:

Barite, Jigging, Froth Flotation, Leaching, Specific gravity

Abstract

In this research, Jigging, Froth Flotation and leaching have been used to beneficiate barite ore from Azara, Nasarawa State Nigeria. Chemical analysis on the ore indicates that it contains 53.09% of Ba and 11.52% S with a specific gravity value of 3.207±0.03. After the jigging operation, the specific gravity values of the underflow and overflow are 3.77±0.029 and 2.77±0.058 respectively while the Ba and S increased to 78.61% and 15.87% respectively. After the froth-flotation, the specific gravity values obtained are 3.95, 4.1 and 4.05 corresponding to pH values of 5, 7 and 9 respectively. Frothed barite with pH of 7 was leached with 0.2M HCl and a mixture of 0.2M HCl and HOCl. After leaching, the specific gravity values are 4.38±0.03 and 4.27±0.02 for HCl and HCl+HOCl respectively. The X-ray diffraction patterns show that highly crystalline peaks are obtained after froth flotation while more phases are added with leaching.

http://dx.doi.org/10.4314/njt.v37i4.14

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Published

2018-09-30

Issue

Vol. 37 No. 4 (2018)

Section

Chemical, Industrial, Materials, Mechanical, Metallurgical, Petroleum & Production Engineering

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How to Cite

BENEFICIATION OF AZARA BARITE ORE USING A COMBINATION OF JIGGING, FROTH FLOTATION AND LEACHING. (2018). Nigerian Journal of Technology, 37(4), 957-962. https://doi.org/10.4314/njt.374.1857