Polyhydric alcohol production using ruthenium zeolite catalyst

Details Polyhydric alcohol production using ruthenium zeolite catalyst Polyhydric alcohol production using ruthenium zeolite catalyst

1974-11-05

1976-06-15

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252455Z, C07C 3118

Patent

active

039637883

ABSTRACT:
Process for the conversion of carbohydrates to polyhydric alcohols. Carbohydrates, such as corn starch hydrolyzate, glucose, and invert sugar, are converted to polyhydric alcohols by hydrogenation at high pressure in the presence of a ruthenium-containing alumino-silicate zeolite catayst in which the silica/alumina mol ratio is greater than three, and in particular ruthenium on a Y type zeolite in the hydrogen form. This acid stable catalyst gives good conversion with high selectivity to sorbitol when corn starch hydrolyzate in aqueous solution is used as the starting material.

REFERENCES:
patent: 2868847 (1959-01-01), Boyers
patent: 3055840 (1962-11-01), Koch

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