Invention Grant
- Patent Title: Process for reducing CPI in a dinitrile stream
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Application No.: US16095793Application Date: 2017-04-27
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Publication No.: US11028045B2Publication Date: 2021-06-08
- Inventor: Chengbao Ni
- Applicant: INV Nylon Chemicals Americas, LLC
- Applicant Address: US DE Wilmington
- Assignee: INV Nylon Chemicals Americas, LLC
- Current Assignee: INV Nylon Chemicals Americas, LLC
- Current Assignee Address: US DE Wilmington
- International Application: PCT/US2017/029810 WO 20170427
- International Announcement: WO2017/192350 WO 20171109
- Main IPC: C07C253/34
- IPC: C07C253/34 ; B01D3/00 ; B01D3/34
Abstract:
Disclosed is a process for removing 2-cyanocyclopentylideneimine (CPI) from a mixture containing CPI and dinitrile. The process comprises reacting CPI with an amine. The reaction may take place in the presence of water, and optionally, a catalyst. CPI is converted to products with a low volatility compared to the dinitrile.
Public/Granted literature
- US20190135736A1 PROCESS FOR REDUCING CPI IN A DINITRILE STREAM Public/Granted day:2019-05-09
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