磷石膏综合利用现状及展望

doi:10.19964/j.issn.1006-4990.2023-0278

Abstract

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

CLC Number:

TQ177.39

DENG Hua, HOU Shuomin, LI Zhongjun, XU Gang, CHI Ru′an, XI Benjun. Current situation and prospect of comprehensive utilization of phosphogypsum[J]. Inorganic Chemicals Industry, 2024, 56(1): 1-8.

Figures/Tables 4

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杂质种类	主要危害
磷类杂质	进入地表水和土壤，影响植物生长；水体富营养化
残留酸	进入地表水和土壤，破坏自然体系酸碱平衡
氟类杂质	进入地表水和土壤，抑制植物生长；危害人体健康
有机杂质（絮凝剂、有机催化剂等）	影响磷石膏白度和磷石膏产品市场接受度
其他杂质（碱金属盐与放射性元素等）	影响磷石膏产品性能，限制磷石膏下游利用

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Current situation and prospect of comprehensive utilization of phosphogypsum

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