B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 21/06 (2006.01) B01J 23/20 (2006.01) B01J 38/48 (2006.01) C07C 68/06 (2006.01) C07C 69/96 (2006.01)
Patent
CA 2604411
A process for producing various organic carbonates by performing transesterification and disproportionation reactions in dual vapor/liquid phase mode preferably in the presence of solid catalyst composition selected from the group consisting of oxides, hydroxides, oxyhydroxides or alkoxides of two to four elements from Group IV, V and Vl of the Periodic Table supported on porous material which has surface hydroxyl groups and the method of reactivating catalyst deactivated by polymer deposition by contacting the deactivated catalyst with a solution of hydroxy containing compound in a solvent such as benzene or THF.
La présente invention concerne un procédé de production de divers carbonates organiques par transestérification et dismutation en mode double phase vapeur/liquide, de préférence en présence de compositions catalytiques solides appartenant au groupe des oxydes, hydroxydes, oxyhydroxydes ou alcoxydes de deux à quatre éléments des groupes IV, V et VI de la table périodique des éléments, utilisant comme support un matériau poreux portant superficiellement des groupes hydroxyle. L'invention concerne également un procédé de réactivation du catalyseur désactivé par dépôt de polymère. En l'occurrence, on met le catalyseur désactivé en contact avec une solution d'un composé contenant un hydroxy dans un solvant tel que le benzène ou le tétrahydrofurane.
Catalytic Distillation Technologies
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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