发明授权
- 专利标题: Moderate-pressure gas phase phosgenation
- 专利标题(中): 中等压力气相光气化
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申请号: US10523919申请日: 2003-07-24
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公开(公告)号: US07994361B2公开(公告)日: 2011-08-09
- 发明人: Andreas Woelfert , Christian Mueller , Eckhard Stroefer , Markus Weber , Joachim Pfeffinger , Carsten Knoesche
- 申请人: Andreas Woelfert , Christian Mueller , Eckhard Stroefer , Markus Weber , Joachim Pfeffinger , Carsten Knoesche
- 申请人地址: DE Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DE Ludwigshafen
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: DE10238995 20020820
- 国际申请: PCT/EP03/08108 WO 20030724
- 国际公布: WO2004/026813 WO 20040401
- 主分类号: C07C249/00
- IPC分类号: C07C249/00
摘要:
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.
公开/授权文献
- US20050272910A1 Moderate-pressure gas phase phosgenation 公开/授权日:2005-12-08
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