Invention Grant
- Patent Title: Reactive separation process to convert cyclic alkylene ureas into their corresponding alkylene amines
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Application No.: US16638377Application Date: 2018-08-07
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Publication No.: US11339116B2Publication Date: 2022-05-24
- Inventor: Rens Veneman , Antoon Jacob Berend Ten Kate , Karl Fredrik Lake , Eike Nicolas Kantzer , Slavisa Jovic , Rolf Krister Edvinsson , Ina Ehlers , Hendrik Van Dam , Michiel Jozef Thomas Raaijmakers
- Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
- Applicant Address: NL Arnhem
- Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
- Current Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
- Current Assignee Address: NL Arnhem
- Agency: Lorenz & Kopf, LLP
- Priority: EP17185943 20170811
- International Application: PCT/EP2018/071318 WO 20180807
- International Announcement: WO2019/030189 WO 20190214
- Main IPC: C07C209/68
- IPC: C07C209/68 ; C07C209/86

Abstract:
A process to convert cyclic alkylene ureas into their corresponding alkylene amines is provided. An exemplary process includes reacting the cyclic alkylene ureas with an amine compound chosen from the group of primary amines or secondary amines that have a higher boiling point than the alkylene amines formed during the process, wherein the process is a reactive separation process and the reaction mixture contains less than about 10 wt % of water on the basis of total weight of the reaction mixture.
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