Homogenous process for the hydrogenation of carboxylic acids and derivatives thereof
US7709689B2 · kind B2 · utility
17Cited by
19References
2Claims
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Key dates
| Filing date | Apr 29, 2003 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Jan 1, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A homogenous process for the hydrogenation of the carboxylic acids and/or derivatives thereof in the presence of a catalyst comprising ruthenium, rhodium, iron, osmium or palladium, and an organic phosphine is described in which the hydrogenation is carried out in the presence of at least about 1% by weight water. A process for regenerating a catalyst comprising ruthenium, rhodium, iron, osmium or palladium and an organic phosphine is also described in which the regeneration is carried out in the presence of hydrogen and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.