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YANG Xiaojian, HU Guotao, WANG Shihan. Research Progress of Magnesium Removal Technology from Medium and Low Grade Phosphate Rocks[J]. Conservation and Utilization of Mineral Resources, 2022, 42(2): 67-73. doi: 10.13779/j.cnki.issn1001-0076.2022.02.008
Citation: YANG Xiaojian, HU Guotao, WANG Shihan. Research Progress of Magnesium Removal Technology from Medium and Low Grade Phosphate Rocks[J]. Conservation and Utilization of Mineral Resources, 2022, 42(2): 67-73. doi: 10.13779/j.cnki.issn1001-0076.2022.02.008
shu

Research Progress of Magnesium Removal Technology from Medium and Low Grade Phosphate Rocks

  • 1.

    State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Its Associated Resources, Guiyang 510016, Guizhou, China

  • 2.

    Wengfu (Group) Co., Ltd., Guiyang 550000, Guizhou, China

Received Date:  09 March 2022
Publish Date:  25 April 2022
    Abstract

  • In recent years, with the continuous development of the phosphorus chemical industry, the high-grade phosphate rock resources that can be used directly have been exhausted. At present, most of the phosphorus resources in my country are high magnesium phosphate rocks that are difficult to select, and a large amount of magnesium impurities have adverse effects on the production of phosphorus chemical industry. Therefore, the research on magnesium removal technology of phosphate rocks is particularly important. This paper analyzes the influence of magnesium impurities in phosphate rocks on the processing of phosphate rocks, expounds in detail the application and effect of flotation method, leaching method and high-temperature calcination method in the removal of magnesium from phosphate rock, compares and analyzes the advantages and disadvantages of different magnesium removal technologies, and points out that although most magnesium can be removed by flotation, it is difficult to remove magnesium in depth. Therefore, the combined process of flotation, leaching or high temperature calcination can be used to realize the deep removal of magnesium, and it is suggested that the research on phosphate rock magnesium removal technology should be developed towards the direction of compound, economic and environmental protection.

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