Inorganic Chemicals Industry ›› 2024, Vol. 56 ›› Issue (10): 1-11.doi: 10.19964/j.issn.1006-4990.2024-0072

• Reviews and Special Topics •     Next Articles

Current status and research progress of comprehensive utilization of phosphorus tailings

WANG Baoming1,2,3(), WANG Xinglong1, YANG Ying1, ZHAO Bo1, HUA Quanxian2,4, LIU Yong2,4, LIU Pengfei1,2,3, SHEN Bo1,2,3, DING Junxiang1,2,3, TANG Jianwei1,2,3()   

  1. 1.School of Ecology and Environment,Zhengzhou University,Zhengzhou 450001,China
    2.National Calcium Magnesium Phosphate Compound Fertilizer Technology Research and Promotion Center,Zhengzhou 450001,China
    3.Henan Provincial Collaborative Engineering Technology Research Center for Pollution Reduction and Carbon Reduction,Zhengzhou 450001,China
    4.College of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China
  • Received:2024-02-04 Online:2024-10-10 Published:2024-11-05
  • Contact: TANG Jianwei E-mail:ziqiangdere@126.com;tangjw@126.com

Abstract:

China is rich in phosphorus ore resources,but most of them are medium and low⁃grade phosphorus ore,which need to be beneficiated to be used in chemical production.Phosphorus tailings are solid wastes with low phosphorus content produced by beneficiation of phosphorus ore,which can be regarded as low⁃grade phosphorus tailings,mainly composed of calcium oxide,magnesium oxide,phosphorus pentoxide,silica,and have great potential for comprehensive utilization.In this paper,in view of the structure,composition,and physicochemical properties of phosphorus tailings,the current situation and research progress of the comprehensive utilization of phosphorus tailings were reviewed.The utilization of phosphorus tailings in the filling of the mine,leaching of calcium and magnesium and other valuable elements,re⁃election and recovery of phosphorus elements,agricultural applications,building applications,environmental protection applications and other aspects was elaborated in detail.The problems faced in the comprehensive utilization of phosphorus tailings were analyzed and prospects for its development were outlooked.It was pointed out that the development of a new environmentally friendly and efficient comprehensive utilization process of phosphorus tailings was the development direction of phosphorus tailings utilization,which was the common need of phosphorus chemical enterprises and society and it was in line with the basic national policy of green and efficient utilization of resources and sustainable development.

Key words: phosphorus tailings, comprehensive utilization, green environmental protection

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