2007•Phosphate and Compound FertilizerRequires access

Review on the technology of phosphogypsum pretreatment

Cheng Yu-bao

Abstract

The comprehensive utilization of wet-process phosphoric acid by-product has the great significance for environmental protection and circulation resource adoption.The soluble impurities such as P2O5,fluorine and organic matter in the phosphogypsum are main affecting factors for phosphogypsum using.Some methods about phosphogypsum pretreatment in China and abroad are introduced.

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Key concepts: Phosphogypsum, Phosphoric acid, Environmental science, Waste management, Organic matter, Chemistry, Pulp and paper industry, Raw material