Low pressure rhodium catalyzed hydroformylation of olefins
US4873213A · kind A · utility
21Cited by
13References
8Claims
0Family size
Inventors
Key dates
| Filing date | Aug 12, 1988 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | Aug 12, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2540/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The hydroformylation of olefins with rhodium complex catalysts is described. The catalysts employed comprises a rhodium complex with at least one phosphine having a specified structure, e.g., tris(benzyl)phosphine. Preferred phosphines have a pKa in the range of about 3.5 up to 5.3 and a cone angle in the range of about 160.degree. up to 195.degree.. Hydroformylation reactions at relatively low temperatures and pressure and yet with high rates of reaction and high selectivity to aldehyde product are obtained by the practice of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.