Process for improving sucralose purity and yield

Details Process for improving sucralose purity and yield Process for improving sucralose purity and yield

C - Chemistry, Metallurgy

07

H

C07H 13/08 (2006.01) C07H 1/06 (2006.01) C07H 5/02 (2006.01)

Patent

CA 2481402

This invention relates to processes for purifying sucralose by the use of an initial non-crystallization purification procedure followed by three or more sequential crystallization steps and recycle of the mother liquor remaining from each crystallization step to the feed of another crystallization or purification step. This invention also relates to sucralose compositions as well as compositions comprising the sucralose compositions of the present invention. These compositions may be highly pure and have a superior taste profile.

L'invention concerne des procédés destinés à purifier le sucralose au moyen d'une opération de purification sans cristallisation initiale suivie de trois étapes de cristallisation successives et d'un recyclage de la solution mère restante issue de chaque étape de cristallisation vers une autre étape de cristallisation ou de purification. L'invention concerne également des compositions de sucralose ainsi que des compositions renfermant les compositions de sucralose de la présente invention. Ces compositions peuvent être extrêmement pures et présenter un profil de goût supérieur.

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