Polyhydric alcohol production using ruthenium zeolite catalyst

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

C - Chemistry, Metallurgy

07

C

260/632.5

C07C 29/00 (2006.01) B01J 23/96 (2006.01) B01J 29/068 (2006.01) B01J 29/90 (2006.01) B01J 38/60 (2006.01) C07C 31/26 (2006.01) C13K 1/00 (2006.01) C13K 1/06 (2006.01) B01J 29/12 (2006.01)

Patent

CA 1054160

ABSTRACT OF THE DISCLOSURE Process for the conversion of carbohydrates to polyhydric alcohols. Carbo- hydrates, 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 catalyst 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. - 1 -

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