Dimerization of acrylonitrile
US4958042A · kind A · utility
3Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1988 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Oct 26, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C255/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Acrylonitrile is dimerized in a homogenious liquid phase comprising a phosphinite or phosphonite catalyst, a proton donating solvent and an aromatic and aliphatic hydrocarbon solvent, the aromatic solvent, unconverted acrylonitrile and proton donating solvent is distilled from the product and a mixture is left which separates into two phases, one comprising the catalyst and the other the dinitrile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.