Invention Grant
- Patent Title: Process for the preparation of aromatic amines
- Patent Title (中): 芳香胺的制备方法
-
Application No.: US12001829Application Date: 2007-12-13
-
Publication No.: US08110073B2Publication Date: 2012-02-07
- Inventor: Bernd Pennemann , Bill Brady , Rainer Buse
- Applicant: Bernd Pennemann , Bill Brady , Rainer Buse
- Applicant Address: DE Leverkusen
- Assignee: Bayer MaterialScience AG
- Current Assignee: Bayer MaterialScience AG
- Current Assignee Address: DE Leverkusen
- Agent Lyndanne M. Whalen; Noland J. Cheung
- Priority: DE102006059678 20061218
- Main IPC: B01D3/02
- IPC: B01D3/02 ; C07C209/36 ; C07C209/86
Abstract:
Aromatic amines are produced by catalytic hydrogenation of aromatic nitro compounds. The reaction mixture generated by this hydrogenation is then worked up by distillation in a manner which makes it possible to substantially free the amine of water with increased energy efficiency. Water free of amine and low boilers and the low boiling materials are also obtained.
Public/Granted literature
- US20080179176A1 Process for the preparation of aromatic amines Public/Granted day:2008-07-31
Information query
