Process for preparing d-arabitol

Details Process for preparing d-arabitol Process for preparing d-arabitol

C - Chemistry, Metallurgy

12

P

C12P 7/18 (2006.01) C07C 29/141 (2006.01) C07C 29/145 (2006.01) C07C 31/18 (2006.01) C07C 51/31 (2006.01) C07H 3/02 (2006.01) C12P 7/58 (2006.01) C12P 19/14 (2006.01) C13K 13/00 (2006.01)

Patent

CA 2206389

Process for preparing D-arabitol characterized by the following steps: hydrolysis of a lactose solution; oxydation of the mixture of glucose and galactose thus obtained into a mixture of gluconic acid and galactonic acid; decarboxylation of this mixture of gluconic acid and galactonic acid into a mixture of D-arabinose and D-lyxose; catalytic hydrogenation of this mixture of D-arabinose and D-lyxose into D-arabitol.

Procédé de préparation du D-arabitol caractérisé par le fait qu'il comporte les étapes suivantes : - l'hydrolyse d'une solution de lactose, - l'oxydation du mélange de glucose et de galactose ainsi obtenu en un mélange des acides gluconique et galactonique, - la décarboxylation de ce mélange des acides gluconique et galactonique en un mélange de D-arabinose et de D-lyxose, - l'hydrogénation catalytique de ce mélange de D-arabinose et de D-lyxose en D-arabitol.

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