C - Chemistry – Metallurgy – 07 – H
Patent
C - Chemistry, Metallurgy
07
H
C07H 5/02 (2006.01) C07H 1/06 (2006.01)
Patent
CA 2523806
A crystalline form of sucralose, and a method of making it. The method involves continuously crystallizing sucralose from an aqueous solution by a process providing continuous removal and recirculation of the vessel contents, and providing a long residence time for sucralose in the system. The crystals thus formed are of a relatively low length/diameter ratio, have an unsymmetrical shape, and exhibit good stability. The larger crystals in particular are tapered as compared to the rod-like larger crystals in prior art product.
L'invention concerne une forme cristalline de sucralose et son procédé de production. Ledit procédé consiste à cristalliser en continu du sucralose à partir d'une solution aqueuse par le biais d'un processus qui permet d'éliminer et de recycler continuellement les contenus du récipient et de garder pour une période de temps plus longue le sucralose dans le système. Les cristaux ainsi formés présentent un rapport longueur/diamètre relativement faible, une forme non symétrique et une bonne stabilité. Les cristaux plus gros, notamment, sont coniques en comparaison aux cristaux plus gros en forme de tige de la technique antérieure.
Catani Steven J.
Merkel Carolyn M.
Vernon Nicholas M.
Marks & Clerk
Tate & Lyle Public Limited Company
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