C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 51/42 (2006.01) C07C 51/44 (2006.01) C07C 51/47 (2006.01) C07C 59/08 (2006.01)
Patent
CA 2301066
The invention concerns a method for recuperating and purifying a lactic acid solution obtained initially from a fermentation medium or any other source, consisting in a pre-treatment to eliminate the ion loads capable of catalysing the lactic acid condensation and based on the principle of ion exchange or any other related principle, followed by at least a step of concentration at low temperature and brief retention time and at least a step of distilling the lactic acid using a thin layer process.
Procédé comprenant la récupération et la purification d'une solution d'acide lactique obtenue au départ d'un milieu de fermentation ou de toute autre source, consistant en un prétraitement destiné à éliminer les charges ioniques capables de catalyser la condensation de l'acide lactique et basé sur le principe d'un échange ionique ou tout autre principe assimilé, suivi d'au moins une étape de concentration à faible température et temps de séjour court et d'au moins une étape de distillation de l'acide lactique selon un procédé de type couche mince.
Bogaert Jean-Christophe
Malhaize Etienne
Van Gansberghe Frederic
Van Gansberghe Martin
Wolff Florence
Brussels Biotech
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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