Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2006-04-04
2006-04-04
Barts, Samuel (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S124000, C568S863000, C568S861000
Reexamination Certificate
active
07022824
ABSTRACT:
A process is described for preparing sorbitol by catalytic hydrogenation of a monosaccharide forming sorbitol on hydrogenation in the liquid phase, which comprises the catalyst being obtainable by:i) single or multiple treatment of an amorphous silicon dioxide based support material with a halogen-free aqueous solution of a low-molecular-weight ruthenium compound and subsequent drying of the treated support material at below 200° C.,ii) reducing the solid obtained in i) with hydrogen at from 100 to 350° C.,step ii) being carried out immediately after step i).
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Arndt Jan-Dirk
Kammel Ulrich
Maas-Brunner Melanie
Vanoppen Dominic
Barts Samuel
BASF - Aktiengesellschaft
Henry Michael C.
Oblon, Spivak, McCLelland, Maier & Neustadt, P.C.
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