Abstract: A process is provided for converting feedstock comprising paraffins, olefins or mixtures thereof to product comprising C.sub.5 + hydrocarbons over a catalyst comprising a high silica crystalline zeolite which has been treated by steps of calcining the crystalline material, contacting the calcined material with solid aluminum fluoride, and converting the aluminum fluoride contacted material to hydrogen form.

Abstract: A method for increasing the total amount of lattice metal in the framework of a particular porous inorganic crystalline composition, its conversion to hydrogen or hydronium form and use thereof as a catalyst component having enhanced catalytic activity is provided.

Abstract: A process is provided for converting feedstock aromatic compounds by alkylation, transalkylation, disproportionation and/or isomerization over a catalyst comprising a high silica crystalline zeolite which has been treated by steps of calcining the zeolite, contacting the calcined zeolite with solid aluminum fluoride, and converting the aluminum fluoride contacted zeolite to hydrogen form.

Abstract: A process is provided for converting feedstock comprising oxygenates to product comprising hydrocarbons over a catalyst comprising a high silica crystalline zeolite which has been treated by steps of calcining the crystalline material, contacting the calcined material with solid aluminum fluoride, and converting the aluminum fluoride contacted material to hydrogen form, such as, for example, by contact with a hydrogen ion precursor, e.g., an ammonium salt solution, and calcination.

Abstract: The ion-exchange capacity and acid catalytic activity of a ZSM-5 type zeolite are increased by treatment of a physical mixture of the zeolite and an inorganic oxide with water in the presence of an alkali metal cation.

Abstract: A process is provided for using a reactivated catalyst composition comprising a crystalline zeolite material having a silicon/aluminum atomic ratio of at least about 3.5, said catalyst composition having been deactivated by contact with steam. The reactivation method involves the necessary steps of contacting said steam-deactivated catalyst composition with a metal salt solution, followed by contacting said metal salt solution contacted catalyst composition with an aqueous ammonium ion-containing solution.

Abstract: A crystalline high silica-containing zeolite such as ZSM-5 is treated with an ammoniacal alkali metal aluminate so as to enhance the catalytic activity thereof.

Abstract: A process is provided for converting feedstock comprising oxygenates to product comprising hydrocarbons over a catalyst comprising a high silica crystalline zeolite which has been treated sequentially by contact with a dilute hydrogen fluoride solution and then by contact with aluminum chloride vapor.

Abstract: A process is provided for conducting organic compound conversion over a catalyst comprising a crystalline zeolite which has been treated by reaction with a compound having a complex fluoroanion.

Abstract: A process is provided for conducting organic compound conversion over a catalyst composition comprising a supported crystalline zeolite having a high initial silica-to-alumina mole ratio, said supported zeolite being prepared by compositing said crystalline zeolite with a support matrix material, calcining the resulting supported zeolite, contacting said calcined supported zeolite with volatile boron fluoride in a dry environment until said supported zeolite is saturated with said boron fluoride, purging unreacted boron fluoride from said boron fluoride contacted supported zeolite, hydrolyzing said boron fluoride contacted supported zeolite, and converting said hydrolyzed material to hydrogen form.

Abstract: A process is provided for conducting organic compound conversion over a catalyst comprising a zeolite composition prepared by a method which comprises compositing a specific zeolite material with alumina, impregnating the composite with an aqueous solution of an alkali metal fluoride under vacuum, contacting the impregnated composite with an ammonium salt solution and calcining the resulting material.

Abstract: A process is provided for conducting organic compound conversion over a catalyst composition comprising a supported crystalline zeolite having a high initial silica-to-alumina mole ratio, said supported zeolite being prepared by compositing said crystalline zeolite with alumina, reacting the composite with a particular hydrogen fluoride solution in a specified way, drying the hydrogen fluoride reacted composite, treating the dried composite by hydrolysis, ammonolysis and/or by contact with an ammonium salt solution, and calcining the resulting material.

Abstract: A process is provided for conducting organic compound conversion over a catalyst comprising a crystalline zeolite which has been treated by impregnation with an ammoniacal aluminum fluoride solution, contact with an ammonium salt solution, and calcination.

Abstract: A process is provided for conducting organic compound conversion over a catalyst composition comprising a crystalline zeolite having a high initial silica-to-alumina mole ratio, said zeolite being prepared by calcining the zeolite, contacting said calcined zeolite with solid aluminum fluoride, and coverting said aluminum fluoride contacted material to hydrogen form.

Abstract: Substitution of aluminum or gallium for boron or iron contained in the framework of a high silica content zeolite is effected by treating the zeolite in liquid water in the presence of a compound of aluminum or gallium.

Abstract: A process is provided for conducting organic compound conversion over a catalyst composition comprising a specially treated crystalline zeolite having a high initial silica-to-alumina mole ratio, said zeolite having been synthesized from a reaction mixture comprising a diamine as a cation source. The treatment of the zeolite material comprises the sequential steps of reacting the zeolite with a dilute hydrogen fluoride solution, contacting the hydrogen fluoride solution reacted material with aluminum chloride vapor, and then treating the aluminum chloride contacted material to convert it to hydrogen form.

Abstract: In an ethanol fermentation process in which an aqueous solution of fermentable sugar is converted by an ethanol-producing microorganism such as a yeast to a dilute aqueous solution of ethanol with the ethanol being present in the solution at a concentration which does not exceed a predetermined maximum level, an improvement is provided which comprises selectively sorbing ethanol present in the solution within a hydrophilic crystalline aluminosilicate zeolite so that the non-sorbed ethanol present in the solution does not exceed the predetermined maximum level of concentration therein, and thereafter removing sorbed ethanol from the zeolite.

Abstract: A process is provided for conducting organic compound conversion over a catalyst composition comprising a supported crystalline zeolite having a high initial silica-to-alumina mole ratio, said supported zeolite being prepared by compositing said crystalline zeolite with a support matrix material, calcining the resulting supported zeolite, contacting said calcined supported zeolite with volatile boron fluoride in a dry environment until said supported zeolite is saturated with said boron fluoride, purging unreacted boron fluoride from said boron fluoride contacted supported zeolite, hydrolyzing said boron fluoride contacted supported zeolite, and converting said hydrolyzed material to hydrogen form.

Abstract: In the process for activating high-silica zeolite catalyst with an ionized activating agent wherein a crystalline zeolite catalyst having a silica:alumina ratio greater than 70 and a constraint index of 1 to 12 is contacted with the activating agent at elevated temperature, an improvement which comprises: hydrothermally treating an intimate mixture of zeolite catalyst and an effective amount of activating agent in contact with an aqueous liquid phase under reaction conditions to increase the cracking activity of the catalyst.The activated catalyst product may be produced by hydrothermal treatment of a composite mixture of zeolite and hydrated alumina or other activating metal oxide binder material. The preferred zeolites are acid ZSM-5 type crystalline materials having a silica:alumina ratio of at least 1600:1.

Abstract: A process is provided for conducting organic compound conversion over a catalyst comprising a crystalline zeolite which has been treated by impregnation with an ammoniacal aluminum fluoride solution, contact with an ammonium salt solution, and calcination.