Invention Grant
- Patent Title: Moderate-pressure gas phase phosgenation
- Patent Title (中): 中等压力气相光气化
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Application No.: US10523919Application Date: 2003-07-24
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Publication No.: US07994361B2Publication Date: 2011-08-09
- Inventor: Andreas Woelfert , Christian Mueller , Eckhard Stroefer , Markus Weber , Joachim Pfeffinger , Carsten Knoesche
- Applicant: Andreas Woelfert , Christian Mueller , Eckhard Stroefer , Markus Weber , Joachim Pfeffinger , Carsten Knoesche
- 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: DE10238995 20020820
- International Application: PCT/EP03/08108 WO 20030724
- International Announcement: WO2004/026813 WO 20040401
- Main IPC: C07C249/00
- IPC: C07C249/00
Abstract:
The invention relates to a process for preparing aromatic diisocyanates by reaction of phosgene with diamines in the gas phase, in which the reaction is carried out in a reaction zone at moderate pressures, i.e. the pressure in this reaction zone is more than 3 bar and less than 20 bar.
Public/Granted literature
- US20050272910A1 Moderate-pressure gas phase phosgenation Public/Granted day:2005-12-08
Information query
