Patent ID: 8252921
Filing Date: 2012-08-28
Classification: C08B,D06M,D21H

Abstract:
1. A method for the controlled oxidation of oligo- and/or polysaccharides containing free —CH 2 OH primary hydroxyl groups, using an oxidizing agent, characterized in that the oxidation reaction is carried out in a closed system filled with a densified fluid wherein the oligo- and/or polysaccharides are placed, the densified fluid being non reactive with said oxidizing agent and being an inert gas, said method being carried out at a temperature of the order of from 20 to 60° C., and under a pressure of the order of from 20 to 400 bar, the densified fluid being CO said oxidizing agent being solubilized in the densified fluid while the oligo- and/or polysaccharides remain in a non solubilized solid state.