Process for continuously manufacturing acrylamide
US3985806A · kind A · utility
4Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1972 |
| Grant date | Oct 12, 1976 |
| Priority date | — |
| Expiry date | Aug 10, 1992 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/72
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for continuously manufacturing acrylamide by hydrating acrylonitrile in the presence of a free metallic copper catalyst, characterized in that a reactor is employed, which is internally partitioned into a catalyst slurry circulating section and a catalyst precipitating section, and that raw materials and supplementary catalyst are supplied continuously into the reactor and at the same time the clear reaction liquid and a portion of the catalyst are continuously taken out of the reactor so that the properties of the catalyst are maintained constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.