Inorganic Chemicals Industry ›› 2024, Vol. 56 ›› Issue (1): 1-8.doi: 10.19964/j.issn.1006-4990.2023-0278

• Reviews and Special Topics •     Next Articles

Current situation and prospect of comprehensive utilization of phosphogypsum

DENG Hua1,2(), HOU Shuomin1, LI Zhongjun1, XU Gang2, CHI Ru′an1,3, XI Benjun1   

  1. 1. Hubei Three Gorges Laboratory,Yichang 443007,China
    2. College of Civil Engineering and Architecture,China Three Gorges University,Yichang 443002,China
    3. Xingfa School of Mining Engineering,Wuhan Institute of Technology,Wuhan 430074,China
  • Received:2023-05-19 Online:2024-01-10 Published:2024-01-18

Abstract:

The environmental problems caused by long-term storage of phosphogypsum are becoming increasingly prominent,and the harmless treatment and comprehensive utilization of phosphogypsum are urgent.The research progress of phosphogypsum in the fields of preparing industrial gypsum and building materials,cement retarders,preparing sulfuric acid co production cement,roadbed materials,filling materials,and soil amendments was summarized,the main research directions of phosphogypsum was introduced,the relationship between comprehensive utilization research and industrialization of phosphogypsum was analyzed.It was pointed out that the core contradiction between phosphogypsum research and industrialization was depended on the low value of phosphogypsum itself and the high cost of industrial treatment,which was unable to be promoted,and various solutions were proposed to address the above issues.It was pointed out that the future development of phosphogypsum would require government policy support and maintain a balance between the demand for phosphogypsum market and the addition of new devices.In terms of the utilization of phosphogypsum,harmless disposal was the foundation,roadbed materials were the main way to absorb phosphogypsum,and soil remediation and ecological restoration were new directions for phosphogypsum utilization.

Key words: phosphogypsum, environmental hazards, comprehensive utilization, production and sales dynamic balance

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