Method for preparing aldehydes by hydroformylation
US6339174B1 · kind B1 · utility
4Cited by
6References
20Claims
0Family size
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Inventor
Key dates
| Filing date | May 16, 2000 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | May 16, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2540/32
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst composition comprising a) more than 70% by weight of a polyethylene glycol of the formula H—(OCH2—CH2)n—OH, where n is an integer of 3 to 16 and the number average molecular weight is less than 650 b) rhodium in elemental form or bound form and c) 2 to 25% by weight of water soluble sulfonated triarylphosphine ligand having 1 to 2 phophorus atoms and not more than 25% by weight of water based on the total amount of the catalyst and its use for the hydroformylation of olefins to aldehydes is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.