Invention Grant
- Patent Title: Process for making nitriles
- Patent Title (中): 制造腈的方法
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Application No.: US14346882Application Date: 2012-10-04
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Publication No.: US09040735B2Publication Date: 2015-05-26
- Inventor: Sudhir Aki , Wyatte E. Allen , Mark Anstrom , Charles Nelson Campbell, II , Tseng Chao , James E. McIntosh , Larry E. Moerbe , Bruce Edwin Murphree , Mark D. Rogers , William J. Tenn, III , Thomas E. Vos , Michael W. Wensing
- Applicant: INVISTA NORTH AMERICA S.A.R.L.
- 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.
- International Application: PCT/US2012/058668 WO 20121004
- International Announcement: WO2013/052610 WO 20130411
- Main IPC: C07C253/00
- IPC: C07C253/00 ; C07C253/08 ; C07C253/18 ; C07C253/10
Abstract:
The present invention relates to a process for hydrocyanating 3-pentenenitrile. The process can include feeding 3-pentenenitrile and HCN to a hydrocyanation reaction zone that includes a Lewis acid promoter, nickel, and a phosphorus-containing ligand. In various embodiments, the process can also include controlling water concentration within the hydrocyanation reaction zone sufficient to maintain a high activity of the ligand catalyst complex while recycling at least a portion of the ligand catalyst complex.
Public/Granted literature
- US20140235887A1 PROCESS FOR MAKING NITRILES Public/Granted day:2014-08-21
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