IT1041248B - Polyhydric alcohol prepn from carbohydrates - reacted with hydrogen in aq medium using ruthenium on alumino-silicate zeolite catalyst - Google Patents

Polyhydric alcohol prepn from carbohydrates - reacted with hydrogen in aq medium using ruthenium on alumino-silicate zeolite catalyst

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Publication number
IT1041248B
IT1041248B IT5095975A IT5095975A IT1041248B IT 1041248 B IT1041248 B IT 1041248B IT 5095975 A IT5095975 A IT 5095975A IT 5095975 A IT5095975 A IT 5095975A IT 1041248 B IT1041248 B IT 1041248B
Authority
IT
Italy
Prior art keywords
alumino
medium
carbohydrates
prepn
ruthenium
Prior art date
Application number
IT5095975A
Other languages
Italian (it)
Original Assignee
Ici America Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US05/520,926 external-priority patent/US3963788A/en
Application filed by Ici America Inc filed Critical Ici America Inc
Application granted granted Critical
Publication of IT1041248B publication Critical patent/IT1041248B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Polyhydric alcohols are prepd. in high yield by contacting a carbohydrate with H2 in an aq. medium at pref. 100-200 degrees C and pressure >=7(70-21) kp/cm2 and pH >=3(3-4.5) esp. 3.5-4, in presence of a Ru-contg. alumino-silicate having an SiO2/Al2O3 molar ratio >=3. Method is used for hydrogenation of monosaccharides and hydrogenolysis of polysaccharides. Cheap, mixed carbohydrates may be used, giving high selectivity to sorbitol, from either glucose or a starch hydrolysate. The catalyst has high strength and is easily regenerated without removal of carrier.
IT5095975A 1974-08-20 1975-08-14 Polyhydric alcohol prepn from carbohydrates - reacted with hydrogen in aq medium using ruthenium on alumino-silicate zeolite catalyst IT1041248B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49896974A 1974-08-20 1974-08-20
US05/520,926 US3963788A (en) 1974-08-20 1974-11-05 Polyhydric alcohol production using ruthenium zeolite catalyst

Publications (1)

Publication Number Publication Date
IT1041248B true IT1041248B (en) 1980-01-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
IT5095975A IT1041248B (en) 1974-08-20 1975-08-14 Polyhydric alcohol prepn from carbohydrates - reacted with hydrogen in aq medium using ruthenium on alumino-silicate zeolite catalyst

Country Status (1)

Country Link
IT (1) IT1041248B (en)

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