Research status and prospect of resource utilization of sludge acid from wet phosphoric acid

Abstract With the decrease of phosphate rock grade in China, the amount of sludge acid from wet phosphoric acid production enterprises is increasing. Because the composition of sludge acid from wet phosphoric acid is complicated, it is difficult to use. How to realize high efficiency and value-added utilization of sludge acid is a major problem faced by phosphorus chemical enterprises in China. In this paper, the source and main properties of sludge acid from wet phosphoric acid are introduced. The preparation of phosphorus chemical products, fertilizer products and its application in other fields are described. The future research directions for the efficient utilization of sludge acid from wet phosphoric acid are also prospected.

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	Articles by authors
	TU Zhongbing
	HE Binbin
	JIANG Wei
	YANG Xiongjun
	LIU Zhengdong
	TAO Hui
	ZHU Guihua
	YANG Wenjuan
	MEI Yi

Keywords： wet phosphoric acid sludge acid utilization

Received 2024-01-03;

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TU Zhongbing, HE Binbin, JIANG Wei, YANG Xiongjun, LIU Zhengdong, TAO Hui, ZHU Guihua, YANG Wenjuan, MEI Yi.Research status and prospect of resource utilization of sludge acid from wet phosphoric acid[J] Chemcial Industry and Engineering, 2024,V41(2): 148-154

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