Process for the removal of dissolved metallic catalyst from...

Details Process for the removal of dissolved metallic catalyst from... Process for the removal of dissolved metallic catalyst from...

C - Chemistry, Metallurgy

07

C

C07C 69/24 (2006.01) C07C 67/56 (2006.01) C07C 69/34 (2006.01)

Patent

CA 2193111

A process for purifying crude ester containing residual metallic catalyst is described. The process comprises (a) adding to a crude ester product an amorphous silicon dioxide adsorbent capable of adsorbing dissolved metallic catalyst; (b) heating the combination at a temperature of between about 80 ~C and about 130 ~C; and (c) separating the ester from the adsorbent by filtration, such that residual metallic catalyst is retained on the adsorbent.

Procédé de purification d'esters bruts contenant des résidus de catalyseur métallique consistant (a) à ajouter à l'ester brut un adsorbant de dioxyde de silicium amorphe adsorbant le susdit catalyseur; (b) à porter le mélange à une température comprise entre environ 80 ~C et 130 ~C; et (c) à séparer l'ester de l'adsorbant par une filtration qui retient les résidus de catalyseur.

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