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公开(公告)号:US06503474B1
公开(公告)日:2003-01-07
申请号:US09633268
申请日:2000-08-04
申请人: Robert Magiera , Hans Christian Alt , Gerhard Rasig , Jörg Münzenberg , Christoph Batz-Sohn , Ralf Goedecke , Ulrich Deschler , Volker Knapp , Karl-Heinz Rützel
发明人: Robert Magiera , Hans Christian Alt , Gerhard Rasig , Jörg Münzenberg , Christoph Batz-Sohn , Ralf Goedecke , Ulrich Deschler , Volker Knapp , Karl-Heinz Rützel
IPC分类号: C01B1722
CPC分类号: C01B17/38
摘要: A process is disclosed for the preparation of anhydrous sodium sulfide by heating sodium sulfide having a water content of from 38 to 40% in a contact drier in vacuo, the temperature of the solid to be dried being increased from approximately 20° C. at the solid inlet to ≧180° C. at the solid outlet.
摘要翻译: 公开了通过在接触干燥器中真空加热含水量为38至40%的硫化钠制备无水硫化钠的方法,待干燥的固体的温度从约20℃升高 在固体出口处为> = 180℃的固体入口。