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过程工程学报 2001
AnodicReactionofArsenopyriteinAmmoniacalSolutionsKeywords: arsenopyrite,anodicprocess,ammoniacalsolution Abstract: Anodicdissolutionofarsenopyriteinammoniacalsolutionhasbeeninvestigatedbyelectrochemicalmethods.Theprocessisanirreversiblereactionwithformationofaferricoxidizedfilmandisretardedbythefilm.Theprocessrateiscontrolledbytheelectrochemicalreactionontheelectrodesurfaceinthelowertemperaturerange,oralternativelybythediffusionthroughthefilminthehighertemperaturerange.Theoverallreactionhas14electrontransferredandcanbeexpressedby
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