发明授权
- 专利标题: Process for preparing aromatic amines
- 专利标题(中): 制备芳香胺的方法
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申请号: US13978479申请日: 2012-01-06
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公开(公告)号: US09139510B2公开(公告)日: 2015-09-22
- 发明人: Michael Merkel , Karl-Heinz Wilke , Peter Lehner , Andre Lago , Erwin Dieterich
- 申请人: Michael Merkel , Karl-Heinz Wilke , Peter Lehner , Andre Lago , Erwin Dieterich
- 申请人地址: DE Monheim
- 专利权人: BAYER INTELLECTUAL PROPERTY GMBH
- 当前专利权人: BAYER INTELLECTUAL PROPERTY GMBH
- 当前专利权人地址: DE Monheim
- 代理机构: Miles & Stockbridge P.C.
- 优先权: DE102011002497 20110111
- 国际申请: PCT/EP2012/050161 WO 20120106
- 国际公布: WO2012/095356 WO 20120719
- 主分类号: C07C209/00
- IPC分类号: C07C209/00 ; C07C209/36
摘要:
The invention relates to a process for the continuous preparation of aromatic amines by hydrogenation of the corresponding nitroaromatics in the presence of catalysts arranged in reaction spaces, in which an adiabatically operated reaction space RA is connected downstream of an isothermally operated reaction space RI and RA additionally also has a separate feed for the nitroaromatic to be hydrogenated, RI is fed with the nitroaromatic to be hydrogenated from the start to the end of the hydrogenation, and the product mixture emerging from RI is fed into RA from the start to the end of the hydrogenation, wherein RA can additionally be fed via the separate feed with the nitroaromatic to be hydrogenated.
公开/授权文献
- US20140128638A1 PROCESS FOR PREPARING AROMATIC AMINES 公开/授权日:2014-05-08
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