Separation method utilizing liquid-liquid partition

Details Separation method utilizing liquid-liquid partition Separation method utilizing liquid-liquid partition

C - Chemistry, Metallurgy

07

K

C07K 1/20 (2006.01) C07K 1/14 (2006.01)

Patent

CA 2356704

A method for the separation of a predetermined compound comprising i) partitioning the compound in a two-phase system (system A) in which at least one of the phases is rich (phase 1) and the other is poor (phase 2) in a thermoseparating polymer (I), ii) collecting one phase (phase 1 or phase 2) containing said compound, and iii) if desired, further working up said compound from the phase collected in step ii, characterized a) in that polymer (I) is a micell-forming thermoseparating polymer, and b) in that phase 2 possibly contains at least one agent that is cloud point-decreasing for thermoseparating polymer (I), such as a polymer (II) that is incompatible with polymer (I) or a salt.

L'invention concerne un procédé de séparation d'un composé prédéterminé consistant i) à scinder ce composant en un système de deux-phases (système A) dans lequel au moins une des phases est riche (phase 1) et l'autre est pauvre (phase 2) dans un polymère de séparation thermique (I), ii) à recueillir une phase (phase 1 ou phase 2) contenant ce composé et iii) éventuellement à continuer à traiter ce composé à partir de la phase recueillie en ii. L'invention est caractérisée a) en ce que ce polymère (I) est un polymère de séparation thermique formant des micelles, et b) en ce que la phase 2 contient éventuellement au moins un agent qui décroît le point de trouble du polymère de séparation thermique (I), tel qu'un polymère (II) qui est incompatible avec le polymère (I) ou un sel.

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