Research Progress in Surface Chemistry of Flotation for Apatite and Gangue Minerals in Phosphate Ore

ZHANG Qin; MAO Song; HUANG Xiaofen; CHEN Aoao; ZHANG Wenbin

doi:10.13779/j.cnki.issn1001-0076.2024.03.001

2024 Vol. 44, No. 3

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ZHANG Qin, MAO Song, HUANG Xiaofen, CHEN Aoao, ZHANG Wenbin. Research Progress in Surface Chemistry of Flotation for Apatite and Gangue Minerals in Phosphate Ore[J]. Conservation and Utilization of Mineral Resources, 2024, 44(3): 1-15. doi: 10.13779/j.cnki.issn1001-0076.2024.03.001

Citation:

ZHANG Qin, MAO Song, HUANG Xiaofen, CHEN Aoao, ZHANG Wenbin. Research Progress in Surface Chemistry of Flotation for Apatite and Gangue Minerals in Phosphate Ore[J]. Conservation and Utilization of Mineral Resources, 2024, 44(3): 1-15. doi: 10.13779/j.cnki.issn1001-0076.2024.03.001

Research Progress in Surface Chemistry of Flotation for Apatite and Gangue Minerals in Phosphate Ore

1.
Guizhou Academy of Sciences, Guiyang 550001, Guizhou, China
2.
Guizhou University, Guiyang 550025, Guizhou, China
3.
National & Local Joint Laboratory of Engineering for Effective Utilization of Regional Mineral Resources from Karst Areas, Guiyang 550025, Guizhou, China
4.
Guizhou Key Laboratory of Comprehensive Utilization of Nonmetallic Mineral Resources, Guiyang 550025, Guizhou, China
5.
Kunming University of Science and Technology, Kunming 650031, Yunnan, China

More Information

Corresponding author: ZHANG Wenbin

Received Date: 21 June 2024

Publish Date: 15 June 2024

Abstract

Abstract

Phosphate ore is a strategic key mineral resource. China's phosphate ore reserves rank second in the world, mainly consisting of sedimentary phosphate rocks. Due to the fact that phosphate rock is an accumulation formed by exogenesis, composed of cryptocrystalline or microcrystalline apatite and other gangue minerals, and the surface wettability, surface electrical properties, and surface adsorption of apatite and gangue minerals are similar, making flotation separation difficult. Surface chemistry of flotation is an important theoretical basis for the flotation of phosphate ores and the key to achieving selective separation between different minerals. This article provides an overview of the crystal chemical characteristics and the surface characteristics such as the surface wettability, the electrical properties, and adsorption characteristics of the main useful minerals in phosphate rock, including apatite and main gangue minerals such as dolomite and quartz. It also discussed the changing characteristics of surface wettability under different flotation agents, the double layer structure of minerals in aqueous solutions, the active sites on mineral surfaces, and the adsorption configuration of collectors. On this basis, the influence of unavoidable ions on the flotation behavior of apatite and gangue minerals was summarized. It is expected to provide the theoretical support for the flotation separation of Medium−low grade phosphate ore.
- apatite /
- dolomite /
- quartz /
- flotation surface chemistry /
- crystal chemical characteristics /
- surface properties /
- unavoidable ions

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References

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