硫铁矿还原磷石膏反应热力学分析

Abstract

Abstract: Thermodynamic calculation software HSC Chemistry was used to analyze the reductive reaction of phosphogypsum as a kind of pollution from phosphorus chemical industry with pyrite.The decomposition temperature and phase composition at different temperatures were explored，and the results were compared with that of reductive reaction of phosphogypsum with pyrite.XRD results of the reductive reaction of phosphogypsum showed the products were Ca2Fe2O5 and CaO，and it was consistent with analog computation.It concluded that chemical thermodynamic equilibrium analysis could be used to study the reductive reaction characteristics of phosphogypsum with pyrite.

Key words: phosphogypsum, pyrite, HSC Chemistry, thermodynamic calculation

CLC Number:

TQ132.32

LUO Shu-Feng, FU Quan-Jun, MA Xian-Lin, CHEN Wei, ZHANG Zhi-Ye, WANG Xin-Long, YANG Lin, SHENG Yong. Thermodynamic analysis of reductive reaction of phosphogypsum with pyrite[J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(4): 57-.

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National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Thermodynamic analysis of reductive reaction of phosphogypsum with pyrite

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