Process for unsaturated aldehyde oxidation using a supported catalyst
US3962322A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1974 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Sep 25, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/25
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process for the conversion of an unsaturated aldehyde (such as acrolein) to the corresponding unsaturated carboxylic acid (such as acrylic acid) is disclosed. The improved process comprises reacting in the gas phase at a temperature sufficient to accomplish the desired reaction of the aldehyde with oxygen in the presence of unagglomerated particles of a supported catalyst having the empirical formula Mo.sub.a V.sub.b W.sub.c Mn.sub.d O.sub.e, the atomic ratio of Mo:V:W:Mn:O being such that when a is 12, b is 0.5 to 12, c is 0.1 to 6, d is 0.5 to 20 and e is 37 to 94, the catalytic metals being supported on porous silica particles having a surface area of from about 25 to about 350 m.sup.2 /gm and a porosity of from about 0.2 to about 1.0 cc/gm whereby essentially all of the catalytic metals are contained on the surfaces of the particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.