Invention Grant
- Patent Title: Process for producing aromatic primary diamines
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Application No.: US15324932Application Date: 2015-07-08
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Publication No.: US10899726B2Publication Date: 2021-01-26
- Inventor: Peng Li , Floryan Decampo
- Applicant: RHODIA OPERATIONS
- Applicant Address: FR Paris
- Assignee: RHODIA OPERATIONS
- Current Assignee: RHODIA OPERATIONS
- Current Assignee Address: FR Paris
- Priority: WOPCT/CN2014/081945 20140710
- International Application: PCT/CN2015/083535 WO 20150708
- International Announcement: WO2016/004867 WO 20160114
- Main IPC: C07D307/52
- IPC: C07D307/52 ; C07C209/26
Abstract:
A process for the production of aromatic primary amines, by reacting an aromatic dialdehyde with hydrogen and ammonia or an ammonia-liberating compound, in the presence of a hydrogenation catalyst and an amine, wherein the molar ratio of the amine to the aromatic dialdehyde is no less than 1:4 at the start of the reaction.
Public/Granted literature
- US20170217916A1 PROCESS FOR PRODUCING AROMATIC PRIMARY DIAMINES Public/Granted day:2017-08-03
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