Method of producing dry acrylamide
US3997606A · kind A · utility
7Cited by
10References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1975 |
| Grant date | Dec 14, 1976 |
| Priority date | — |
| Expiry date | Dec 3, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C231/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Dry acrylamide is produced by reacting acrylonitrile with from 0.3 to 1 mole of water in the presence of a metallic nitrile conversion catalyst. The reaction is conducted under conditions of pressure and temperature and other reaction conditions to convert at least 30% by weight of the nitrile to acrylamide. This reaction produces a solution of acrylamide dissolved in nitrile which then is either treated by means of cooling or pressure reduction to precipitate acrylamide crystals from the reaction mixture, which crystals are then recovered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.