Invention Grant
- Patent Title: Heterogeneous hydrocyanation
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Application No.: US15102792Application Date: 2014-12-18
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Publication No.: US09834506B2Publication Date: 2017-12-05
- Inventor: William J. Tenn, III , Sudkir N. V. K. Aki
- 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.; Dennis P Santini
- International Application: PCT/US2014/071274 WO 20141218
- International Announcement: WO2015/095594 WO 20150625
- Main IPC: C07C255/22
- IPC: C07C255/22 ; C07C253/10 ; B01J21/06 ; B01J23/02 ; B01J23/04 ; B01J23/06 ; B01J23/10 ; B01J27/236 ; B01J27/26 ; B01J31/06

Abstract:
The present invention relates to an improved process for addition of hydrogen cyanide across olefins and, in particular, to the use of a specific aluminum oxide to catalyze the reaction. The aluminum oxide catalyst must have total alkali metal and/or alkaline earth metal content, measured in the form of alkali metal oxide and/or alkaline earth metal oxide, of less than 3,000 ppm by weight.
Public/Granted literature
- US20160311763A1 HETEROGENEOUS HYDROCYANATION Public/Granted day:2016-10-27
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