Continuous process for the preparation of crystalline lactulose
AssigneeFresenius Kabi Austria GmbH
InventorGiovanni Cipolletti
Life of this patent
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Abstract
The present invention concerns a process that can be realised continuously for the preparation of anhydrous crystalline lactulose from commercial aqueous syrups that contain it, characterised in that the crystallisation and consequent separation of the high-purity lactulose with high yields from the syrup is triggered by mixing the ore pulp (or recycled ore pulp), obtained from a previous lactulose crystallisation phase, with the syrup itself.
Claims15
1) Process that can be carried out continuously for the preparation of anhydrous crystalline lactulose from commercial aqueous syrups that contain it, characterised in that the crystallisation and consequent separation of the high-purity lactulose with high yields from the syrup is triggered by mixing the ore pulp (or recycled ore pulp), obtained from a previous lactulose crystallisation phase, with the syrup itself.
4) Process according to claim 4, wherein the triggering ore pulp is added to the syrup in a quantity of 5-10% by weight with respect to the weight of the lactulose present in the syrup.
Dependencies are inferred from the claim text.