Invention Grant
- Patent Title: Production of aniline via anthranilate
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Application No.: US15120163Application Date: 2015-02-19
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Publication No.: US10173969B2Publication Date: 2019-01-08
- Inventor: Gernot Jaeger , Jorgen Magnus , Amgad Salah Moussa
- Applicant: Covestro Deutschland AG
- Applicant Address: DE Leverkusen
- Assignee: COVESTRO DEUTSCHLAND AG
- Current Assignee: COVESTRO DEUTSCHLAND AG
- Current Assignee Address: DE Leverkusen
- Agent Donald R. Palladino
- Priority: EP14155937 20140220; EP14196431 20141205
- International Application: PCT/EP2015/053524 WO 20150219
- International Announcement: WO2015/124686 WO 20150827
- Main IPC: C12P7/40
- IPC: C12P7/40 ; C12P13/00 ; C07C209/68 ; C07C209/78 ; C07C209/84 ; C07C263/10

Abstract:
The invention relates to a method for producing aniline, comprising the steps of: a) providing o-aminobenzoate, wherein said o-aminobenzoate comprises anthranilate anion and a suitable cation, b) converting said anthranilate anion to aniline by thermal decarboxylation in the presence or absence of a catalyst, c) extracting the aniline produced in step b) in an organic solvent at least once, and d) purifying the aniline produced in steps b) and c) by distillation, wherein said distillation produces aniline and a water phase.
Public/Granted literature
- US20170066713A1 PRODUCTION OF ANILINE VIA ANTHRANILIATE Public/Granted day:2017-03-09
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