发明公开
- 专利标题： VERFAHREN ZUR HERSTELLUNG VON CHLOR AUS SALZSÄURE UND EIN DAMIT INTEGRIERTES VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN
- 专利标题（英）： Method for producing chlorine from hydrochloric acid
- 专利标题（中）： 用于生产从氯酸和THUS集成方法制造异氰酸酯
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申请号： EP03778287.7申请日： 2003-10-27
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公开(公告)号： EP1558521A2公开(公告)日： 2005-08-03
- 发明人: WALSDORFF, Christian , FIENE, Martin , KUHRS, Christian , STRÖFER, Eckhard , HARTH, Klaus
- 申请人： BASF AKTIENGESELLSCHAFT
- 申请人地址： 67056 Ludwigshafen DE
- 专利权人： BASF AKTIENGESELLSCHAFT
- 当前专利权人： BASF AKTIENGESELLSCHAFT
- 当前专利权人地址： 67056 Ludwigshafen DE
- 代理机构： Isenbruck, Günter, Dr.
- 优先权： DE10250131 20021028
- 国际公布： WO2004037718 20040506
- 主分类号： C01B7/04
- IPC分类号： C01B7/04
摘要：
The invention relates to a method for producing chlorine by oxidising hydrogen chloride in the presence of a catalyst, whereby hydrogen chloride is not used in a gaseous form, but at least partially in the form of hydrochloric acid. In an especially preferred form of embodiment, the feed gas flow containing hydrogen chloride is obtained from phosgene and primary amines during the isocyanate synthesis, and the product gas flow containing chlorine is used to produce the phosgene which is subsequently reacted with the primary amines to form isocyanates. The invention thus also relates to an integrated method for producing organic isocyanates.
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