发明授权
- 专利标题: Process for the preparation of halogenated aromatic compounds
- 专利标题(中): 卤代芳香族化合物的制备方法
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申请号: US86697申请日: 1993-07-02
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公开(公告)号: US5420364A公开(公告)日: 1995-05-30
- 发明人: Norbert Lui , Albrecht Marhold
- 申请人: Norbert Lui , Albrecht Marhold
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX4222517.5 19920709
- 主分类号: B01J21/08
- IPC分类号: B01J21/08 ; B01J21/04 ; B01J27/08 ; B01J27/128 ; B01J27/132 ; B01J27/138 ; B01J37/24 ; B01J37/26 ; C07B61/00 ; C07C17/00 ; C07C17/363 ; C07C25/02 ; C07C25/22 ; C07C41/22 ; C07C43/225 ; C07C45/67 ; C07C17/361 ; C07C25/125 ; C07C25/13
摘要:
Halogenated aromatic compounds are prepared by passing esters of halogenoformic acid at temperatures in the range 150.degree. to 600.degree. C. and pressures from 0.1 to 3 bar over a catalyst containing chromium, magnesium, iron, silicon and/or aluminium, wherein if Al.sub.2 O.sub.3 catalysts are used these have been activated with hydrogen halide.
公开/授权文献
- US6101287A Dark frame subtraction 公开/授权日:2000-08-08
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