Catalysts and improved process for preparing salts of aldonic acid
US5643849A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1994 |
| Grant date | Jul 1, 1997 |
| Priority date | — |
| Expiry date | Jul 25, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/6447
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to novel palladium/bismuth/carbon catalysts which increase selectivity and activity and lower color (i.e., provide greater purity of reaction products when the catalyst is used in the oxidation reaction of an aldose to a salt of aldonic acid). In one embodiment, the invention is concerned with a method of preparing the catalyst. In another embodiment, the invention is concerned with use of the novel catalyst to obtain superior yields (e.g., 97% and greater). In yet another embodiment of the invention, stability of catalyst (i.e., activity over time) is enhanced when using aldehyde during the oxidation of aldose to salt of aldonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.