Process of manufacturing diaryl esters of dicarboxylic acids
US4451664A · kind A · utility
7Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1982 |
| Grant date | May 29, 1984 |
| Priority date | — |
| Expiry date | Sep 24, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process for preparing diaryl esters of a monohydroxy aromatic compound with dicarboxylic acids is disclosed, in which the esterification reaction is optimized by continuously removing water and/or other by-products of the reaction from the reactor, while supplying to the reactor a make-up amount of the monohydroxy aromatic compound containing no more than about 100 ppm of water. The make-up stream may be obtained by stripping the by-product stream of water and other by-products of the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.