Method for evaporating aminonitrile
US6835830B1 · kind B1 · utility
1Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2001 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | May 7, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D201/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention concerns a method for evaporating aminonitrile and water in conditions limiting or eliminating the formation of heavy by-products in particular amino-carboxylic acid oligomers. To avoid said inconvenience, said method for evaporating aminonitrile and water is characterised in that the water in vapour state serves as balance gas for evaporation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.