Process for the esterification in vapor phase of alpha, beta-unsaturated monocarboxylic acids
US3968149A · kind A · utility
0Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1975 |
| Grant date | Jul 6, 1976 |
| Priority date | — |
| Expiry date | Mar 6, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Alpha, beta-unsaturated monocarboxylic acids, in particular methacrylic acid, are esterified in the vapor phase in contact with a catalyst containing, in combination with oxygen, tungsten alone or in admixture with one or more of the elements lithium, sodium, potassium, rubidium and cesium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.