Abstract: A process and catalyst are provided for the catalytic cracking of a hydrocarbon feedstock to catalytic cracking conversion products comprising the steps of contacting the hydrocarbon feedstock at catalytic cracking conditions with a catalytic cracking catalyst. The catalytic cracking catalyst is prepared by modifying a base catalyst comprising a crystalline molecular sieve and a binder by combining the base catalyst with an ion exchange solution comprising at least one trivalent cation, a trivalent cation complexing agent, and a hydroxide-producing component, wherein the ion exchange solution has a pH ranging from about 4 to about 8, and producing an ion exchanged catalyst and excess ion exchange solution. The modified catalyst is then separated from said excess ion exchange solution.

Abstract: A method is provided for the nondestructive trivalent cation ion exchange of molecular sieves comprising ion exchanging at least one molecular sieve with at least one trivalent cation, wherein the ion exchange is performed at ion exchange conditions with an ion exchange solution comprising the trivalent cation, a trivalent cation complexing agent, and a suitable amount of a hydroxide-producing component to form an ion exchange solution having a pH ranging from about 4 to about 8.

Abstract: There is provided a catalytic composition which comprises a mixture of a crystalline chromosilicate and an oxide of chromium, said catalytic composition providing a specific X-ray diffraction pattern and having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:Cr.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O,wherein M is at least one cation having a valence of n, Y is a value within the range of about 4 to about 500, and Z is a value within the range of about 0 to about 160. There is also provided a method for preparing such a catalytic composition.There is provided a process for the conversion of a hydrocarbon stream which comprises contacting said stream at conversion conditions with the above catalytic composition. In addition, there is provided a process for the isomerization of a xylene feed which comprises contacting said feed at isomerization conditions with the above catalytic composition.

Abstract: A process to form an ether comprises contacting an alkene and an alcohol under conversion conditions with an AMS-1B borosilicate catalyst composition.

Abstract: A process to convert an alkene to oligomerized, aromatized and isomerized products comprises contacting such alkene under conversion conditions with an AMS-1B borosilicate catalyst composition.

Abstract: There is provided a catalytic composition which comprises a molecular sieve-containing component and a porous refractory inorganic oxide, said component and said refractory inorganic oxide having been intimately admixed with one another, said component comprising a mixture of a crystalline chromosilicate and an oxide of chromium, providing a specific X-ray diffraction pattern, and having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:Cr.sub.2 O.sub.3 : YSiO.sub.2 : ZH.sub.2 O,wherein M is at least one cation having a valence of n, Y is a value within the range of about 4 to about 200, and Z is a value within the range of about 0 to about 160. There is also provided a method for preparing such a catalytic composition.There is provided a process for the conversion of a hydrocarbon stream, which process comprises contacting said stream at conversion conditions with the above catalytic composition.

Abstract: There is provided a catalytic composition which comprises a crystalline chromosilicate and a porous refractory inorganic oxide, said chromosilicate and said inorganic oxide having been intimately admixed with one another, said chromosilicate comprising a molecular sieve material providing a specific X-ray diffraction pattern and having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:Cr.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O,wherein M is at least one cation having a valence of n, Y is within the range of about 4 to about 200, and Z is a value within the range of 0 to about 160. There is also provided a method for preparing such a catalytic composition.There is provided a process for the conversion of a hydrocarbon stream, which process comprises contacting said stream at conversion conditions with the above catalytic composition.

Abstract: There is provided a catalytic composition which comprises a molecular sieve-containing component and a porous refractory inorganic oxide, said component and said refractory inorganic oxide having been intimately admixed with one another, said component comprising a mixture of a crystalline chromosilicate and an oxide of chromium, providing a specific X-ray diffraction pattern, and having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:Cr.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O,wherein M is at least one cation having a valence of n, Y is a value within the range of about 4 to about 200, and Z is a value within the range of about 0 to about 160. There is also provided a method for preparing such a catalytic composition.There is provided a process for the conversion of a hydrocarbon stream, which process comprises contacting said stream at conversion conditions with the above catalytic composition.

Abstract: There is provided a catalytic composition which comprises a crystalline chromosilicate and a porous refractory inorganic oxide, said chromosilicate and said inorganic oxide having been intimately admixed with one another, said chromosilicate comprising a molecular sieve material providing a specific X-ray diffraction pattern and having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:Cr.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O,wherein M is at least one cation having a valence of n, Y is within the range of about 4 to about 200, and Z is a value within the range of 0 to about 160. There is also provided a method for preparing such a catalytic composition.There is provided a process for the conversion of a hydrocarbon stream, which process comprises contacting said stream at conversion conditions with the above catalytic composition.

Abstract: There is provided a catalytic composition which comprises a mixture of a crystalline chromosilicate and an oxide of chromium, said catalytic composition providing a specific X-ray diffraction pattern and having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:Cr.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O,wherein M is at least one cation having a valence of n, Y is a value within the range of about 4 to about 500, and Z is a value within the range of about 0 to about 160. There is also provided a method for preparing such a catalytic composition.There is provided a process for the conversion of a hydrocarbon stream which comprises contacting said stream at conversion conditions with the above catalytic composition. In addition, there is provided a process for the isomerization of a xylene feed which comprises contacting said feed at isomerization conditions with the above catalytic composition.

Abstract: Crystalline aluminosilicate molecular sieves are formed by (1) forming an aqueous mixture of an oxide of aluminum, an oxide of silicon, a metal or ammonium cation and 2-aminopyridine organic template compound, (2) maintaining the pH of such mixture between about 9 and 13.5, and (3) crystallizing the mixture.

Abstract: Crystalline aluminosilicate molecular sieves are prepared by (1) forming an aqueous mixture of an oxide of aluminum, an oxide of silicon, a metal or ammonium cation and a suitable oxygen-containing monomeric organic template compound, (2) maintaining the pH of such mixture between 9 and 14, and (3) crystallizing the mixture. The organic templates include ethanolamine, diethanolamine, triethanolamine, ethylethanolamine, ethyldiethanolamine, 2-amino-2-ethyl-1,3-propanediol, morpholine, and alkali metal complexed tetrahydrofuran, dioxane, dioxolane, and crown ethers. Crystalline aluminosilicates prepared include mordenite, ferrierite, ZSM-4, and ZSM-5.

Abstract: There are provided crystalline chromosilicates, their methods of preparation, and process uses. A first crystalline chromosilicate comprises a molecular sieve material providing a specific X-ray diffraction pattern and having the following composition in terms of mole ratios of oxides:0.9.+-.0.2[WR.sub.2 O+(1-W)M.sub.2/n O]:Cr.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O,wherein R is an alkyl ammonium cation, M is at least one cation having a valence of n, Y is a value within the range of about 4 to about 500, Z is a value within the range of about 0 to about 160, and W is a value that is greater than or equal to 0 and less than or equal to 1. A second crystalline chromosilicate comprises a molecular sieve material providing a specific X-ray diffraction pattern and having the following composition in terms of mole ratios of oxides:0.9.+-.0.2M.sub.2/n O :Cr.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.

Abstract: A new catalytic composition and its method of preparation are presented. The catalytic composition comprises a crystalline borosilicate and a porous refractory inorganic oxide, said borosilicate and said inorganic oxide having been intimately admixed with one another, said borosilicate comprising a molecular sieve material having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 Owherein M is at least one cation having a valence of n, Y is between 4 and about 600, and Z is between 0 and about 160.The catalytic composition can be used for the conversion of hydrocarbon streams, e.g., the isomerization of xylene feedstocks.

Abstract: There are provided crystalline chromosilicates, their methods of preparation, and process uses. A first crystalline chromosilicate comprises a molecular sieve material providing a specific X-ray diffraction pattern and having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 [WR.sub.2 O+(1-W)M.sub.2/n O]: Cr.sub.2 O.sub.3 : YSiO.sub.2 : ZH.sub.2 O,wherein R is an alkylammonium cation, M is at least one cation having a valence of n, Y is a value within the range of about 4 to about 500, Z is a value within the range of about 0 to about 160, and W is a value that is greater than or equal to 0 and less than or equal to 1. A second crystalline chromosilicate comprises a molecular sieve material providing a specific X-ray diffraction pattern and having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O: Cr.sub.2 O.sub.3 : YSiO.sub.2 : ZH.sub.

Abstract: A new crystalline borosilicate comprises a molecular sieve material having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O,wherein M is at least one cation, n is the valence of the cation, Y is a value within the range of 4 to about 600, and Z is a value within the range of 0 to about 5/8, and providing a specific X-ray diffraction pattern.The borosilicate is used to catalyze various processes, such as isomerization, disproportionation, alkylation, transalkylation, and conversion of alcohols into gasoline-boiling-range products, olefins, and/or aromatics.

Abstract: A new crystalline borosilicate comprises a molecular sieve material having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O,wherein M is at least one cation, n is the valence of the cation, Y is a value within the range of 4 to about 600, and Z is a value within the range of 0 to about 160, and providing a specific X-ray diffraction pattern. The borosilicate is used to catalyze various processes, such as isomerization, disproportionation, alkylation, transalkylation, and conversion of alcohols into gasoline-boiling-range products, olefins, and/or aromatics.

Abstract: There is disclosed a method for preparing a metal-cation-deficient crystalline borosilicate, which method comprises: (1) preparing a mixture containing an oxide of silicon that is substantially free of metal cations, an oxide of boron, ammonium hydroxide, alkylammonium cation or a precursor of an alkylammonium cation, and water; and (2) maintaining the mixture at suitable reaction conditions to effect formation of the borosilicate.There are also disclosed the crystalline borosilicate that results from the above-described method of preparation and uses of that borosilicate.

Abstract: A new crystalline borosilicate comprises a molecular sieve material having the following composition in terms of mole ratios of oxides:0.9.+-.0.2M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 Owherein M is at least one cation, n is the valence of the cation, Y is a value within the range of 4 to about 600, and Z is a value within the range of 0 to about 160, and providing a specific X-ray diffraction pattern. The borosilicate is used to catalyze various processes, such as isomerization, disproportionation, and transalkylation.

Abstract: A new catalytic composition and its method of preparation are presented. The catalytic composition comprises a crystalline borosilicate and a porous refractory inorganic oxide, said borosilicate and said inorganic oxide having been intimately admixed with one another, said borosilicate comprising a molecular sieve material having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 O,wherein M is at least one cation having a valence of n, Y is between 4 and about 600, and Z is between 0 and about 160.The catalytic composition can be used for the conversion of hydrocarbon streams, e.g., the isomerization of xylene feedstocks.