The present invention relates to a method for the preparation of a synthetic crystalline zeolite material, to said synthetic crystalline zeolite material, and to the uses of said method and said synthetic crystalline zeolite material in various applications.

The present invention relates to a method for the preparation of a synthetic crystalline zeolite material, to said synthetic crystalline zeolite material, and to the uses of said method and said synthetic crystalline zeolite material in various applications.

Compositions and methods for preparing mesoporous and/or mesostructured materials from low SAR zeolites are provided herewith. In particular, methods are provided that involve: (a) providing a low SAR zeolite, (b) optionally subjecting the low SAR zeolite to an acid framework modification, and (c) subjecting the framework-modified zeolite to a mesopore formation treatment. The resulting mesoporous zeolites can have bi-modal mesoporosity and higher aluminum contents relative to existing mesoporous zeolites.

Compositions and methods for preparing mesoporous and/or mesostructured materials from low SAR zeolites are provided herewith. In particular, methods are provided that involve: (a) providing a low SAR zeolite, (b) optionally subjecting the low SAR zeolite to an acid framework modification, and (c) subjecting the framework-modified zeolite to a mesopore formation treatment. The resulting mesoporous zeolites can have bi-modal mesoporosity and higher aluminum contents relative to existing mesoporous zeolites.

A method for synthesizing a mordenite (MOR) molecular sieve with a modulatable location and distribution of B acid sites, and a product thereof and the use thereof. Provided is a method for synthesizing a mordenite MOR molecular sieve with acid sites located at an 8-membered ring side pocket in communication with a 12-membered ring pore channel in the presence or absence of an inorganic base. The method includes introducing an additional reagent and an optional fluorinating reagent which have different structures and charge densities into a synthetic gel, and the B acid sites of the obtained MOR zeolite are located at an 8-membered ring side pocket in communication with a 12-membered ring pore channel A catalyst product obtained exhibits an excellent performance in terms of adsorption and catalysis. The synthesis method has broad industrial application, particularly being applied to catalysts for the carbonylation reaction of dimethyl ether.

A method for synthesizing a mordenite (MOR) molecular sieve with a modulatable location and distribution of B acid sites, and a product thereof and the use thereof. Provided is a method for synthesizing a mordenite MOR molecular sieve with acid sites located at an 8-membered ring side pocket in communication with a 12-membered ring pore channel in the presence or absence of an inorganic base. The method includes introducing an additional reagent and an optional fluorinating reagent which have different structures and charge densities into a synthetic gel, and the B acid sites of the obtained MOR zeolite are located at an 8-membered ring side pocket in communication with a 12-membered ring pore channel A catalyst product obtained exhibits an excellent performance in terms of adsorption and catalysis. The synthesis method has broad industrial application, particularly being applied to catalysts for the carbonylation reaction of dimethyl ether.

The present invention relates to a process for the conversion of ethylene oxide to 2-aminoethanol and/or ethane-1,2-diamme and/or linear polyethylenimines of the formula H.sub.2N(CH.sub.2CH.sub.2NH).sub.nCH.sub.2CH.sub.2NH.sub.2 wherein n1 comprising (i) providing a catalyst comprising a zeolitic material comprising YO.sub.2 and X.sub.2O.sub.3, wherein Y is a tetravalent element and X is a trivalent element; (ii) providing a gas stream comprising ethylene oxide and ammonia; (iii) contacting the catalyst provided in (i) with the gas stream provided in (ii) for converting ethylene oxide to 2-aminoethanol and/or ethane-1,2-diamine and/or linear polyethylenimines.

The present invention relates to a process for the conversion of ethylene oxide to 2-aminoethanol and/or ethane-1,2-diamme and/or linear polyethylenimines of the formula H.sub.2N(CH.sub.2CH.sub.2NH).sub.nCH.sub.2CH.sub.2NH.sub.2 wherein n1 comprising (i) providing a catalyst comprising a zeolitic material comprising YO.sub.2 and X.sub.2O.sub.3, wherein Y is a tetravalent element and X is a trivalent element; (ii) providing a gas stream comprising ethylene oxide and ammonia; (iii) contacting the catalyst provided in (i) with the gas stream provided in (ii) for converting ethylene oxide to 2-aminoethanol and/or ethane-1,2-diamine and/or linear polyethylenimines.

A catalyst composition comprising (a) carrier comprising (i) 5 to 95 wt % mordenite type zeolite having a mean crystallite length parallel to the direction of the 12-ring channels of 60 nm or less and a mesopore volume of at least 0.10 cc/gram, (ii) 5 to 95 wt % ZSM-5 type zeolite; and (iii) 10 to 60 wt % inorganic binder; and (b) 0.001 to 10 wt % of one or more catalytically active metals, wherein the inorganic binder comprises titania, its preparation and its use in alkylaromatic conversion.

A catalyst and process for the production of methyl acetate by contacting dimethyl ether and carbon monoxide in the presence of a catalyst which is a zeolite of micropore volume of 0.01 ml/g or less.