Process for producing methacrylic acid
US4547588A · kind A · utility
17Cited by
15References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1981 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | Mar 30, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst composition useful for the oxidation of unsaturated aldehydes, particularly the oxidation of methacrolein to produce methacrylic acid, comprises the combination of oxides of molybdenum, copper, phosphorus, antimony, and cesium and/or calcium and optionally may include one or more of the elements Ni, Zn, Ru, Rh, Pd, Pt, As, K, Rb, Sr, Ba, Cr, V, Nb, W, Mn, Re, and rare earth metals including La.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.