Catalysts and improved process for preparing salts of aldonic ac

Details Catalysts and improved process for preparing salts of aldonic ac Catalysts and improved process for preparing salts of aldonic ac

1994-07-25

1997-07-01

Caldarola, Glenn A.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Inorganic carbon containing

502101, 502107, 502113, 502201, 502326, 502353, 502416, B01J 2344, B01J 3700, B01J 2316

Patent

active

056438494

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.

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patent: 4791224 (1988-12-01), Sumner et al.
Hendriks et al., Carbohydrate Research 204:121-129 Feb. 1990.

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