One-step production of 1, 3-propanediol from ethylene oxide and syngas with a catalyst with a phospholanoalkane ligand
US6576802B2 · kind B2 · utility
10Cited by
16References
5Claims
0Family size
Assignee
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Key dates
| Filing date | May 30, 2002 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | May 30, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/845
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a novel class of modified ruthenium catalysts useful in the one step synthesis of 1,3-PDO comprising (a) a cobalt component comprising one or more non-ligated cobalt compounds; and (b) a ruthenium component comprising in major part a ruthenium carbonyl compound ligated with a phospholanoalkane ligand, solubilized in an ether solvent, that provides potential improvements in cost and performance in one step hydroformylation/hydrogenation. For example, cobalt-ruthenium-bidentate, bis(phospholano)alkane catalyst precursors in ether solvents provide good yields of 1,3-PDO in a one step synthesis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.