Invention Grant
- Patent Title: Method for separating hydrogen chloride and phosgene
- Patent Title (中): 氯化氢和光气的分离方法
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Application No.: US11574263Application Date: 2005-09-10
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Publication No.: US07659430B2Publication Date: 2010-02-09
- Inventor: Andreas Woelfert , Carsten Knoesche , Hans-Juergen Pallasch , Martin Sesing , Eckhard Stroefer , Hans-Martin Polka , Manfred Heilig
- Applicant: Andreas Woelfert , Carsten Knoesche , Hans-Juergen Pallasch , Martin Sesing , Eckhard Stroefer , Hans-Martin Polka , Manfred Heilig
- Applicant Address: DE Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: DE102004044592 20040913
- International Application: PCT/EP2005/009762 WO 20050910
- International Announcement: WO2006/029788 WO 20060323
- Main IPC: C07C45/00
- IPC: C07C45/00 ; C07C49/00 ; B01D47/00
Abstract:
The invention relates to a process for separating hydrogen chloride and phosgene, which comprises bringing a mixture of hydrogen chloride and phosgene into contact with an ionic liquid in which at least part of the hydrogen chloride is dissolved in a step a) and then separating off the hydrogen chloride dissolved in the ionic liquid in a step b).
Public/Granted literature
- US20070293707A1 Method for Separating Hydrogen Chloride and Phosgene Public/Granted day:2007-12-20
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