Hydrogenolysis of 5-carbon sugars, sugar alcohols and compositions for reactions involving hydrogen
US6677385B2 · kind B2 · utility
32Cited by
13References
11Claims
0Family size
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Key dates
| Filing date | Aug 6, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Aug 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Methods and compositions for reactions of hydrogen over a Re-containing catalyst with compositions containing a 5-carbon sugar, sugar alcohol, or lactic acid are described. It has been surprisingly discovered that reaction with hydrogen over a Re-containing multimetallic catalyst resulted in superior conversion and selectivity to desired products such as propylene glycol. A process for the synthesis of PG from lactate or lactic acid is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.