Process for the manufacture of oxidized starch, oxidized starch and its use
AssigneeSolvay SA
InventorPierre Dournel
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Abstract
Batch process for the manufacture of oxidized starch by contacting an aqueous medium comprising already oxidized starch with native starch and with at least one oxidizing agent selected from a peroxide compound or from an alkali metal hypochlorite, and by reacting them at a temperature below the gelatinization temperature of the native starch and of the oxidized starch, the reaction being conducted in the presence of a homogeneous manganese-based complex coordination catalyst when the oxidizing agent is a peroxide compound. The resulting oxidized starch can be used as an additive for the paper industry or for the food industry.
Claims15
A batch process for the manufacture of oxidized starch, comprising contacting an aqueous medium comprising already oxidized starch with native starch and with at least one oxidizing agent selected from the group consisting of a peroxide compound and an alkali metal hypochlorite, and reacting them at a temperature below the gelatinization temperature of the native starch and of the oxidized starch, the reaction being conducted in the presence of a homogeneous manganese-based complex coordination catalyst when the oxidizing agent is a peroxide compound.
Dependencies are inferred from the claim text.