Method of preparation of ascorbic acid

Details Method of preparation of ascorbic acid Method of preparation of ascorbic acid

C - Chemistry, Metallurgy

07

D

260/366.7

C07D 307/62 (2006.01)

Patent

CA 2018692

Procédé de préparation de l'acide ascorbique pur à partir de l'acide céto-2 L gulonique ou de son sel de sodium par la réalisation des étapes successives suivantes: - estérification de l'acide céto-2 L gulonique ou de son sel de sodium, lactonisation en ascorbate de sodium - séparation éventuelle de l'ascorbate de sodium - déplacement de l'acide ascorbique de son sel - séparation du sulfate de sodium - séparation et purification de l'acide ascorbique à partir de sa solution mélancolique ou hydro-méthanolique.

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