Phase-transfer catalysis

Details Phase-transfer catalysis Phase-transfer catalysis

B - Operations, Transporting

01

J

252/124, 402/1.5

B01J 31/18 (2006.01) C07C 4/14 (2006.01) C07C 4/18 (2006.01) C07C 15/02 (2006.01) C07C 17/20 (2006.01) C07C 19/07 (2006.01) C07B 61/00 (2006.01)

Patent

CA 2195307

Phase transfer catalysis (PTC) uses a catalyst comprising a synthetic porous inorganic crystalline material which contains a cation of an onium compound, e.g. cetyltrimethylammonium, within the pores of said material. The crystalline material has, after calcination, an X-ray diffraction pattern with at least one peak at a d-spacing greater than 18 Angstrom Units and a benzene adsorption capacity of greater than 15 grams benzene per 100 grams of said material at 6.7 kPa (50 torr) and 25 ~C.

Dans une catalyse par transfert de phase, on utilise un catalyseur comprenant un matériau cristallin, inorganique, poreux et synthétique contenant dans ses pores un cation d'un composé onium, par exemple du cétyltriméthylammonium. Ce matériau cristallin possède, après calcination, un schéma de diffraction aux rayons X comprenant au moins un pic au niveau d'un espacement (d) supérieur à 18 unités Angström ainsi qu'une capacité d'adsorption du benzène supérieure à 15 grammes de benzène pour 100 grammes dudit matériau à 6,7 kPa (50 torrs) et 25 ~C.

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