Mineralogical Analysis of Copper-Lead-Zinc Mixed Concentrate and Study on Separation Efficiency

XIE Hai-yun; LIU Yan-hao; JI Cui-cui; JIN Yan-ling; ZHANG Pei; TIAN Xiao-song; LIU Rong-xin

doi:10.15898/j.cnki.11-2131/td.202011220152

2021 Vol. 40, No. 4

Article Contents

Article navigation > Rock and Mineral Analysis > 2021 > 40(4): 542-549

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XIE Hai-yun, LIU Yan-hao, JI Cui-cui, JIN Yan-ling, ZHANG Pei, TIAN Xiao-song, LIU Rong-xin. Mineralogical Analysis of Copper-Lead-Zinc Mixed Concentrate and Study on Separation Efficiency[J]. Rock and Mineral Analysis, 2021, 40(4): 542-549. doi: 10.15898/j.cnki.11-2131/td.202011220152

Citation:

XIE Hai-yun, LIU Yan-hao, JI Cui-cui, JIN Yan-ling, ZHANG Pei, TIAN Xiao-song, LIU Rong-xin. Mineralogical Analysis of Copper-Lead-Zinc Mixed Concentrate and Study on Separation Efficiency[J]. Rock and Mineral Analysis, 2021, 40(4): 542-549. doi: 10.15898/j.cnki.11-2131/td.202011220152

Mineralogical Analysis of Copper-Lead-Zinc Mixed Concentrate and Study on Separation Efficiency

1.
Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
2.
Yunnan Copper Mine Research Institute, Kunming 650093, China

More Information

Corresponding author: JI Cui-cui, 15887860811@139.com

Received Date: 12 November 2020

Revised Date: 08 June 2021

Accepted Date: 02 July 2021

Publish Date: 28 July 2021

Abstract

Abstract

BACKGROUND
There are large amounts of copper-lead-zinc polymetallic sulfide ore resources in Yunnan Province, China, but the efficient separation of these resources remains a major problem.
OBJECTIVES
To improve the separation efficiency of valuable minerals in mixed concentrates.
METHODS
In this study, the major elemental content, phase composition, mineral composition, particle size characteristics, and monomer liberation degree of a mixed concentrate were analyzed using a variety of modern detection methods such as chemical analysis, X-ray diffraction, and mineral liberation analysis (MLA).
RESULTS
The results showed that the mixed concentrate had fine particles, and some minerals occurred as intergrowths or inclusions. The monomer liberation degree of the target minerals chalcopyrite, galena, and sphalerite was medium to low, ranging from 69.28% to 70.56%. It was preliminarily predicted that the theoretical separation efficiencies of copper, lead, and zinc in the mixed concentrate were 71.63%, 62.97% and 72.72%, respectively.
CONCLUSIONS
Improving the grinding fineness of mixed concentrates to promote the full liberation of metal minerals is a key way to improve the separation efficiency of copper, lead, and zinc minerals.
- mixed concentrate /
- mineral liberation analysis /
- single liberation degree /
- theoretical separation efficiency /
- process mineralogy

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References

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