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Study on the pre-treatment of oxidized zinc ore prior to flotation

Authors :
Dong-sheng He
Ping Xiang
Zheng-jun Yu
Yun Chen
J. H. Potgieter
Source :
International Journal of Minerals, Metallurgy, and Materials. 25:117-122
Publication Year :
2018
Publisher :
Springer Science and Business Media LLC, 2018.

Abstract

The pre-treatment of zinc oxide bearing ores with high slime content is important to ensure that resources are utilized optimally. This paper reports an improved process using hydrocyclone de-sliming, dispersion reagents, and magnetic removal of iron minerals for the pre-treatment of zinc oxide ore with a high slime and iron content, and the benefits compared to traditional technologies are shown. In addition, this paper investigates the damage related to fine slime and iron during zinc oxide flotation, the necessity of using hydrocyclone de-sliming together with dispersion reagents to alleviate the influence of slime, and interactions among hydrocyclone de-sliming, reagent dispersion, and magnetic iron removal. Results show that under optimized operating conditions the entire beneficiation technology results in a flotation concentrate with a Zn grade of 34.66% and a recovery of 73.41%.

Details

ISSN :
1869103X and 16744799
Volume :
25
Database :
OpenAIRE
Journal :
International Journal of Minerals, Metallurgy, and Materials
Accession number :
edsair.doi.dedup.....f5354f7c0f61b4a104c36a6f75e385cc
Full Text :
https://doi.org/10.1007/s12613-018-1554-2