硫铁矿还原磷石膏反应热力学分析  

Thermodynamic analysis of reductive reaction of phosphogypsum with pyrite

作　　者：罗蜀峰 付全军 马先林 陈伟 张志业[3] 王辛龙[3] 杨林[3] 盛勇 

机构地区：[1]中化云龙有限公司,云南昆明655204 [2]中化化肥有限公司成都研发中心 [3]四川大学化学工程学院

出　　处：《无机盐工业》2016年第4期57-60,78,共4页Inorganic Chemicals Industry

基　　金：国家高技术研究发展计划资助项目(863计划)(No.2011AA06A106)

摘　　要：采用HSC Chemistry热力学软件对硫铁矿还原磷石膏工艺进行了相关计算,探索了反应分解温度、不同温度下物相组成,并与相同条件下的硫铁矿还原磷石膏实验结果进行了比较。XRD分析结果表明,硫铁矿还原分解磷石膏的主要产物为Ca2Fe2O5和Ca O,热力学计算结果与实验结果一致,表明采用化学热力学平衡分析方法可作为硫铁矿还原磷石膏反应特性研究的指导性方法。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 resuhs 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.

关 键 词：磷石膏 硫铁矿 HSC CHEMISTRY 热力学分析 

分 类 号：TQ132.32[化学工程—无机化工]