Staged Sulfuartion-flotation of Malachite and Its Mechanism

YANG Mianyan; MA Yingqiang; YU Yan; SUN Zhongmei; LI Rui; TANG Langfeng

doi:10.13779/j.cnki.issn1001-0076.2021.02.011

2021 Vol. 41, No. 2

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YANG Mianyan, MA Yingqiang, YU Yan, SUN Zhongmei, LI Rui, TANG Langfeng. Staged Sulfuartion-flotation of Malachite and Its Mechanism[J]. Conservation and Utilization of Mineral Resources, 2021, 41(2): 80-88. doi: 10.13779/j.cnki.issn1001-0076.2021.02.011

Citation:

YANG Mianyan, MA Yingqiang, YU Yan, SUN Zhongmei, LI Rui, TANG Langfeng. Staged Sulfuartion-flotation of Malachite and Its Mechanism[J]. Conservation and Utilization of Mineral Resources, 2021, 41(2): 80-88. doi: 10.13779/j.cnki.issn1001-0076.2021.02.011

Staged Sulfuartion-flotation of Malachite and Its Mechanism

1.
College of Zijin Mining, Fuzhou University, Fuzhou 350108, Fujian, China
2.
College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, Fujian, China
3.
Zijin Mining Group Company Limited, Shanghang 364200, Fujian, China
4.
State Key Laboratory of Comprehensive Utilization of Low-Grade Refractory Gold Ores, Shanghang 364200, Fujian, China

More Information

Corresponding author: MA Yingqiang

Received Date: 23 March 2021

Publish Date: 25 April 2021

Abstract

Abstract

In order to further improve the sulfuration-flotation effect of malachite, the effect of staged sulfuration-flotation behavior of malachite was systematically studied through single mineral flotation tests, X-ray photoelectron spectroscopy (XPS) was used to analyze the mechanism of malachite staged sulfuration-flotation. The flotation results show that malachite had medium natural floatability and ammonium carbonate had better activation on malachite staged sulfuration-flotation; When the number of malachite segmented sulfuration-flotation stages is three, compared with the first, second and fourth stages, the sulfuration-flotation recovery rate of malachite increased by 14.68% and 5.44%, respectively. The effect of the four-stage sulfuration-flotation is poorer than that of three-stage sulfuration-flotation, and the recovery rate decreased by 1.62%. Therefore, achieving the effective flotation performancethe by the three-stage sulfuration-flotation; According to the results of X-ray photoelectron spectroscopy, under the condition of the same total dosage, the content of monovalent copper on the surface of the foam products of three-staged sulfuration-flotation is further increased, increasing the stability of sulfide films, improving sulfuration-flotation performance, enhancing adsorption of collectors, and increasing total flotation recovery.
- staged sulfuration /
- malachite /
- flotation behavior /
- sulfuration mechanism /
- polysulfides

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