典型文献
Thermochemical decomposition of phosphogypsum with Fe-P slag via a solid-state reaction
文献摘要：
Phosphogypsum is a solid waste sourced from the wet-process phosphoric acid industry,which causes severe environmental damages.Its utilization was limited by its high decomposition temperature and high energy consumption.Herein,an Fe-P slag,which is a solid waste that mainly comprises iron phos-phide(FeP)and diiron phosphide(Fe2P),can dramatically decrease the decomposition temperature of phosphogypsum.It was found that the Fe-P slag and CaSO4 can react as shown in the following reaction equation:2Fe1.5P+3CaSO4+6CO2 → Ca3(PO4)2+Fe3O4+3SO2+6CO.Its reaction mechanism was further determined using the thermodynamic method.It was found that CaS was the key intermediate for this reaction.The CaSO4 conversion for this method can reach approximately 97％under the optimized roast-ing conditions:the molar ratio between Fe1.5P and CaSO4 of 2:3,roasting temperature of 900℃,a roast-ing time of 8 h.
文献关键词：
中图分类号：
作者姓名：
Lei Sun;Zhongjun Zhao;Xiushan Yang;Yan Sun;Quande Li;Chunhui Luo;Qiang Zhao
作者机构：
School of Chemical Engineering,Sichuan University,Chengdu 610065,China;School of Mechanical Engineering,Chengdu University,Chengdu 610106,China;State Key Laboratory of Long-Life High Temperature Materials,Deyang 618000,China;Dongfang Electric Corporation Dongfang Turbine Co.,Ltd,Deyang 618000,China
文献出处：
引用格式：
[1]Lei Sun;Zhongjun Zhao;Xiushan Yang;Yan Sun;Quande Li;Chunhui Luo;Qiang Zhao-.Thermochemical decomposition of phosphogypsum with Fe-P slag via a solid-state reaction)[J].中国化学工程学报（英文版）,2022(07):113-119
A类：
Thermochemical,Phosphogypsum,phide,diiron,2Fe1,5P+3CaSO4+6CO2,2+Fe3O4+3SO2+6CO
B类：
decomposition,phosphogypsum,slag,via,solid,state,reaction,waste,sourced,from,wet,process,phosphoric,acid,industry,which,causes,severe,environmental,damages,Its,utilization,limited,by,its,high,temperature,energy,consumption,Herein,that,mainly,comprises,FeP,phosphide,Fe2P,can,dramatically,decrease,found,shown,following,equation,Ca3,PO4,mechanism,further,determined,using,thermodynamic,method,key,intermediate,this,conversion,reach,approximately,under,optimized,conditions,molar,ratio,between,roasting
AB值：
0.465355
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