BENEFICIATION OF AZARA BARITE ORE USING A COMBINATION OF JIGGING, FROTH FLOTATION AND LEACHING
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Date
2018-10
Authors
Mgbemere, Henry E.
Obidiegwu, Eugenia O.
Obareki, Emmanuel
Journal Title
Journal ISSN
Volume Title
Publisher
Nigerian Journal of Technology (NIJOTECH)
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.
Description
The article deals with the beneficiation of Barite ore from Azare in Nassarawa State in Nigeria
Keywords
Barite; Jigging; Froth Flotation; Leaching; Specific gravity