Two stage hydrogenolysis of carbohydrate to glycols using sulfid

Details Two stage hydrogenolysis of carbohydrate to glycols using sulfid Two stage hydrogenolysis of carbohydrate to glycols using sulfid

1983-09-06

1984-10-09

Evans, J. E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568863, C07C 29136, C07C 2914, C07C 3120

Patent

active

044763310

ABSTRACT:
A process for the production of a lower polyhydric alcohol or a mixture thereof by the hydrogenation and hydrolysis of a carbohydrate. The first stage hydrogenation produces higher polyhydric alcohols, such as sorbitol. In the second stage these higher polyhydric alcohols are selectively converted under the appropriate reaction conditions to lower polyhydric alcohols, such as ethylene glycol and 1,2-propylene glycol, using a sulfide-modified ruthenium catalyst.

REFERENCES:
patent: 2004135 (1935-06-01), Rothrock
patent: 2852570 (1958-09-01), Conradin et al.
patent: 2965679 (1960-12-01), Conradin et al.
patent: 4292451 (1981-09-01), de Berardinis et al.
patent: 4338472 (1982-07-01), Sirkar
patent: 4404411 (1983-09-01), Tanikella

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