Method for preparing glycerol carbonate
US6025504A · kind A · utility
14Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1999 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Apr 22, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00063
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a method for preparing glycerol carbonate. This method consists of making urea and glycerol react at a temperature substantially between 90.degree. C. and 220.degree. C. in the presence of a catalyst bearing Lewis acid sites, in particular metallic or organometallic salts or supported metallic compounds. The invention enables glycerol carbonate to be obtained, by a catalytic carbamoylation/carbonation reaction, in a highly pure state under economic conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.