2002•Phosphate and Compound FertilizerRequires access

Study on mathematical model of phosphate rock acidulated by phosphoric acid

Jianhua Wang

Abstract

Shangsuan phosphate rock of Yunnan province was acidulated by the phosphoric acid about 20% P\-2O\-5 producted by hotprocess. Under the experimental condition, the coatforming character of product Ca(H\-2PO\-4)\-2 on the phosphate rock was analysed with the scanning electronmicroscope. This process can be described by the shrinking core model with the same diameter. A mathematical model for the process was derived, also a model from experimental data was obtained.

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Key concepts: Phosphorite, Phosphoric acid, Phosphate, Chemistry, Character (mathematics), Mineralogy, Process (computing), Nuclear chemistry