Process for the production of methacrylic acid from isobutyraldehyde
US4358610A · kind A · utility
3Cited by
2References
10Claims
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Key dates
| Filing date | Mar 2, 1981 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Mar 2, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Isobutyraldehyde is oxidized to methacrylic acid by contacting gaseous isobutyraldehyde with molecular oxygen at oxidative conditions in the presence of a catalyst of the empirical formula: EQU Mo.sub.12 P.sub.0.1-3 Cu.sub.0.01-2 V.sub.0.01-3 M.sub.0.1-3 M'.sub.0.01-2 O.sub.x where PA1 M is at least one of K, Rb, Cs and Tl; PA1 M' is at least one of Be, Mg, Ca, Sr, Ba, Nb and Sb; and PA1 x is a positive number that satisfies the valence requirements of the other elements present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.