Invention Grant
- Patent Title: Process for making nitriles
- Patent Title (中): 制造腈的方法
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Application No.: US13808674Application Date: 2011-06-16
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Publication No.: US09045391B2Publication Date: 2015-06-02
- Inventor: Larry E. Moerbe , Tseng H. Chao
- Applicant: Larry E. Moerbe , Tseng H. Chao
- Applicant Address: US DE Wilmington
- Assignee: INVISTA North America S.a.r.l.
- Current Assignee: INVISTA North America S.a.r.l.
- Current Assignee Address: US DE Wilmington
- Agent Robert B. Furr, Jr.; Edward F. Kenehan, Jr.
- International Application: PCT/US2011/040644 WO 20110616
- International Announcement: WO2012/005910 WO 20120112
- Main IPC: C07C253/10
- IPC: C07C253/10
Abstract:
Adiponitrile is made by reacting 3-pentenenitrile with hydrogen cyanide. The 3-pentenenitrile is made by reacting 1,3-butadiene with hydrogen cyanide. The catalyst for the reaction of 1,3-butadiene with hydrogen cyanide to make 3-pentenenitrile is recycled. At least a portion of the recycled catalyst is purified by an extraction process, which separates catalyst degradation products and reaction byproduct from the catalyst.
Public/Granted literature
- US20130211121A1 PROCESS FOR MAKING NITRILES Public/Granted day:2013-08-15
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