Lactam dehydration method
US6635151B1 · kind B1 · utility
5Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2001 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | May 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for separating the water from an aqueous lactam solution.It applies more particularly to a mixture resulting from the reaction between an aminonitrile and water (this reaction also being called cyclizing hydrolysis).The subject of the invention is a process for separating the water from an aqueous lactam solution, which process is economical both from the standpoint of the investment necessary for its implementation and from the standpoint of the operating cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.