Process for producing acrylic acid or methacrylic acid
US4035417A · kind A · utility
13Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1974 |
| Grant date | Jul 12, 1977 |
| Priority date | — |
| Expiry date | Nov 6, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/252
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improvement in the process for producing acrylic or methacrylic acid by the vapor phase catalytic oxidation of a system containing acrolein or methacrolein, respectively, is provided. The improvement resides in the employment, in such process, of a novel catalyst prepared by admixing with a solution of the catalytic component an organic substance, for example from the group of organic acids, alcohols, amines and esters, drying the admixture and subsequently calcining the admixture at a temperature in the range of 330.degree. C to 430.degree. C to form the novel catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.