Process for preparing unsaturated aldehyde having three to four carbon atoms
US4025565A · kind A · utility
16Cited by
2References
6Claims
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Key dates
| Filing date | Jun 25, 1975 |
| Grant date | May 24, 1977 |
| Priority date | — |
| Expiry date | Jun 25, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/35
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An unsaturated aldehyde having three to four carbon atoms is prepared by reacting the corresponding olefin with molecular oxygen in the vapor phase at a temperature of from 350.degree. to 520.degree. C in the presence of a metal oxide catalyst comprising the metallic components: (a) molybdenum; (b) at least one metal selected from the group consisting of niobium and tantalum; (c) tellurium; and (d) at least one metal selected from the group consisting of alkali metals, copper, arsenic, antimony, iron and nickel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.