Invention Grant
- Patent Title: Process for the continuous preparation of 1,2-propylene diamine (1,2-PDA) and dimethyldiethylene triamine (DMDETA)
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Application No.: US16768505Application Date: 2018-11-19
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Publication No.: US11274072B2Publication Date: 2022-03-15
- Inventor: Christian Eidamshaus , Johann-Peter Melder , Joerg Pastre , Hans-Juergen Pallasch
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: EP17204658 20171130
- International Application: PCT/EP2018/081728 WO 20181119
- International Announcement: WO2019/105782 WO 20190606
- Main IPC: C07C209/16
- IPC: C07C209/16 ; B01D3/14 ; B01J21/04 ; B01J23/72 ; B01J23/75 ; B01J23/755 ; C07C209/02 ; C07C209/84 ; C07C211/11 ; C07C211/14
Abstract:
A process for the continuous preparation of 1,2-propylenediamine (1,2-PDA) and dimethyldiethylenetriamine (DMDETA) via reaction of monoisopropanolamine (MIPOA) with ammonia in the presence of hydrogen and a supported heterogeneous hydrogenation catalyst (catalyst), wherein the reaction is effected in the liquid phase at an absolute pressure in the range from 60 to 170 bar.
Information query
