Abstract: Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions and their preparation. More particularly, the new SAPOs have a high silica:alumina ratio, and are prepared from single phase synthesis solutions, or from microemulsions containing surfactants.

Abstract: The present invention is a process for converting a hydrocarbon feedstream by a catalytic reaction in a catalytic cracking process comprising contacting said feedstream with a demetallated molecular sieve catalyst prepared by first synthesizing the molecular sieve in a metal aluminosilicate form, wherein the metal is Fe, Ga, Zn, B, Cr, Ni or Co and mixtures thereof, removal of the template, if present, by calcination, extracting the metal, with partial extraction of Al, cation exchange to reduce the residual base cation level to less than 1% wt; and catalyst fabrication by mixing the exchanged molecular sieve, optionally adding a secondary promoter, with a binder and forming.

Abstract: Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions and their preparation. More particularly, the new SAPOs have a high silica:alumina ratio, and are prepared from single phase synthesis solutions, or from microemulsions containing surfactants.

Abstract: Disclosed are silicoaluminates (SAPOs) having unique silicon distributions, a method for their preparation and their use as naphtha cracking catalysts. More particularly, the new SAPOs have a high silica:alumina ratio and favorable Si atom distribution.

Abstract: Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions and high catalytic cracking activity, a method for their preparation and their use as FCC catalysts. More particularly, the new SAPOs have a high silica:alumina ratio and favorable Si atom distribution. The new SAPOs may have a small crystal size and may be synthesized from a single- phase synthesis solution.

Abstract: Disclosed are silicoaluminates (SAPOs) having unique silicon distributions, a method for their preparation and their use as naphtha cracking catalysts. More particularly, the new SAPOs have a high silica:alumina ratio and favorable Si atom distribution.

Abstract: Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions, a method for their preparation and their use as catalysts for the hydroprocessing of hydrocarbon feedstocks. More particularly, the new SAPOs have a high silica:alumina ratio, and may be prepared from single phase synthesis solutions or from microemulsions containing surfactants.

Abstract: A method for preparing novel zeolitic catalyst compositions having a high Si/Al ratio and a crystallinity of at least about 70%. The method involves cation exchanging an as synthesized faujasite material having an Si/Al greater than about 4 with a component selected from the group consisting of ammonium ions and mineral acids, then steam calcining said cation exchanged faujasite in a single steam calcination step at a temperature from about 900.degree. F. to about 1 500.degree. F.

Abstract: A process to make high silica faujasite family zeolites using preformed gels and templates derived from recycled mother liquors.

Abstract: A process to make a seed high silica zeolite having a faujasite structure and a silica to alumina ratio greater than 6, and containing tetrapropyl ammonium and/or tetrabutyl ammonium trapped within the supercages of said structure. The optimally seeds are aged for specific times.

Abstract: A synthetic gallosilicate zeolite having a 12-ring pore structure and a process for preparing it.

Abstract: This invention relates to novel zeolitic compositions having one or more transition metals as well as aluminum and silicon in the framework tetrahedral positions. The composition has a mazzite-like structure. The invention also involves a process of preparation in which at least one divalent transition metal is directly synthesized into the product.

Abstract: This invention relates to novel zeolitic compositions having zinc as well as aluminum and silicon in the framework tetrahedral positions. The composition has a structure similar to type-L aluminosilicate zeolites. The invention also involves a process of preparation in which one or more divalent transition metals is directly synthesized into the product metalo-aluminosilicate.

Abstract: A method for demetallating crystalline molecular sieve materials by removing a transition metal in the sieve framework with a complexing agent.

Abstract: A transition metal substituted form of the mineral gmelinite.

Abstract: The present invention is a method to make ECR-1 with a methylmethanol ammonium cation template. This new synthesis produces an improved product at lower cost, with improved catalytic properties.

Abstract: This invention relates to novel zeolitic compositions having one or more transition metals as well as aluminum and silicon in the framework tetrahedral positions. The composition has a mazzite-like structure. The invention also involves a process of preparation in which at least one divalent transition metal is directly synthesized into the product.

Abstract: This invention relates to novel zeolitic compositions having transition metals as well as aluminum and silicon in the framework tetrahedral positions. The composition has a structure similar to type-L aluminosilicate zeolites. The invention also involves a process of preparation in which one or more divalent transition metals is directly synthesized into the product metalo-aluminosilicate.

Abstract: This invention relates to novel zeolitic compositions having transition metals as well as aluminum and silicon in the framework tetrahedral positions. The composition has a structure similar to mazzite type zeolites. The invention also involves a process of preparation in which at least one transition metal is directly synthesized into the product.

Abstract: An improved method of preparing crystalline aluminosilicate zeolite ZSM-20, that involves preparing a reaction mixture having the formula, expressed in terms of mole ratio of oxides:(9-12)TEA.sub.2 O:(1-1.4)Na.sub.2 O:Al.sub.2 O.sub.3 :(20-28)SiO.sub.2 :(270-340)H.sub.2 Ofrom an alkali metal oxide source, tetraethylammonium (TEA) oxide, an aluminum oxide, a silicon oxide, tetraethylorthosilicate (TEOS) and water and seeding the reaction mixture with a seed solution having the formula, expressed in terms of mole ratio of oxides:(12-16)Na.sub.2 O:(0.8-1.2)Al.sub.2 O.sub.3 :(10-18)SiO.sub.2 :(250-500)H.sub.2 Oand heating the reaction mixture at temperatures ranging from about 80.degree. C. to about 120.degree. C. for a time sufficient to form crystals, wherein the time required for crystallization is shortened.