Abstract: The present invention relates to new crystalline zeolite SSZ-55 prepared using a phenylcycloalkylmethyl ammonium or N-cyclohexyl-N-(2-methylpropyl)pyrrolidinium cation templating agents.

Abstract: The present invention relates to a titanium-silicalite (TS-1) molecular sieve and the method for preparation of the same, wherein each crystallite of said titanium-silicalite molecular sieve has a hollow cavity with a radial length of 5-300 nm. The benzene adsorption capacity of the molecular sieve determined at 25° C. and P/P0=0.10 for 1 hour is at least 70 mg/g; and the method for preparation of said molecular sieve comprises an acid-treatment and then an organic-base treatment of the synthesized TS-1 molecular sieve, or only an organic-base treatment. The TS-1 molecular sieve of the present invention has a relatively high reactivity and activity stability in the catalytic oxidation.

Abstract: A new synthetic porous crystalline material, designated ITQ-12, is disclosed having, in its calcined form, the X-ray diffraction pattern of Table 2 herein. Also disclosed are methods of making ITQ-12 in its silicate, aluminosilicate and borosilicate forms in the presence of HF using 1,3,5-trimethylimidazole as a directing agent and hydolyzed tetraethylorthosilicate as a silica source. ITQ-12 is useful in the conversion of methanol to olefins and as an adsorbent.

Abstract: A new synthetic porous crystalline material, designated ITQ-13, is disclosed having, in its calcined form, the X-ray diffraction pattern of Table 2 above. Also disclosed are methods of making ITQ-13 in its silicate and borosilicate forms in the presence of HF using hexamethonium dihydroxide as a directing agent and hydolyzed tetraethylorthosilicate as a silica source. Aluminum-containing ITQ-13 can be produced by Al exchange of the borosilicate material. ITQ-13 is useful as an acid catalyst and as an adsorbent.

Abstract: The present invention provides a method for preparing a zeolite having lattice substituted heteroatoms. The method includes: (a) contacting a calcined borosilicate zeolite with an acid, thereby producing an at least partially deboronated zeolite; and (b) contacting the at least partially deboronated zeolite with a salt-containing aqueous solution comprising one or more salts selected from the group consisting of aluminum salt, gallium salt, and iron salt, thereby producing a silicate or borosilicate zeolite having a lattice comprising aluminum atoms; gallium atoms, iron atoms or a combination thereof. Step (b) is conducted at a pH of about 3.5 or less. Preferably, step (a), step (b) or both are conducted at a temperature of from about ambient temperature to about 300° C., preferably, under stirring/tumbling.

Abstract: The present invention relates to new crystalline zeolite SSZ-59 prepared using a N-methyl-N-[(1-phenylcyclopentyl)methyl]heptamethyleneiminium cation, N-methyl-N-[(1-(4-chlorophenyl)cyclopentyl)methyl]heptamethyleneiminium cation, N-methyl-N-[(1-(4-chlorophenyl)cyclopentyl)methyl]hexamethyleneiminium cation, N-methyl-N-[(1-phenylcyclopentyl)methyl]hexamethyleneiminium cation, N-methyl-N-[(1-phenylcyclopentyl)methyl]piperidinium cation or N-methyl-N-[(1-(4-chlorophenyl)cyclopentyl)methyl]piperidinium cation templating agent, and processes employing SSZ-59 as a catalyst.

Abstract: ETS-4 crystalline titanium silicate is produced so as to be enriched in at least one polymorph thereof which contains channels which interpenetrate the crystal lattice in both the b- and c-directions. A process of producing such a polymorph and enriched ETS-4 titanium silicate comprises the addition of a wetting agent to the reaction mixture.

Abstract: Zeolites having the MEL crystal structure are made using 2,2-diethoxyethyltrimethylammonium cation as the structure directing agent.

Abstract: This invention relates to a new synthetic porous crystalline material, designated MCM-67, a method for its preparation and use thereof in catalytic conversion of organic compounds. MCM-67 appears to be closely related in structure to VPI-8 and SSZ-41 but is synthesized without zinc and in the presence of manganese and/or cobalt ions.

Abstract: The present invention relates to zeolithic materials having a characteristic X ray diffraction pattern, and its preparation method, characterized by the relatively low pH of the synthesis medium and the use of F− anions as mineralizing agent. The invention also claims the use of the obtained material in catalytic processes for the transformation of hydrocarbons and in oxidation process. The method comprises heating at 363-473° K a reaction mixture which contains a source of at least one tetravalent element T(IV), optionally a source of an element T(III), optionally H2O2, a structure director organic cation, a source of anions F− and water, the presence of alkaline cations is not necessary.

Abstract: The present invention relates to a process for the microwave induced preparation of crystalline, microporous titanium silicalite. More particularly; the present invention relates to a process for the preparation of crystalline microporous titanium silicalite of the formula: xTiO2:(1−x)SiO2 wherein x is greater than 0.043 and less than or equal to 0.11. These silicalites, prepared under microwave irradiation have the same physico-chemical properties as titanium silicalite prepared by hydrothermal methods.

Abstract: A method for producing a molding of binderless zeolite by exposing to saturated steam a precursor having a tetraalkylammonium salt component, an alkali metal component, and a metal component incorporated in the crystal skeleton of zeolite supported on a molding using silica as a main component, the molding of binderless zeolite, and use of the molding as a catalyst for the production of an alkanolamine.

Abstract: The present invention relates to a process for dewatering organic liquids admixed with water, said process comprising bringing the admixture into contact with a molecular sieve, characterized in that the molecular sieve is pretreated so as to reduce its acid site concentration and attain an ammonia TPD value of 18 mmol/g or less prior to contact with the admixture.

Abstract: An adsorbent for exhaust gas purification is composed of a molecular sieve having high acidic hydrothermal resistance obtained by substituting part or the whole of the Al constituting the framework of crystalline aluminosilicate molecular sieve, with the ion of at least one element selected from elements M for framework element substitution, i.e. Mg, P, Ti, Cr, Ge, Zr, In, Sn, Hf, W, V, Co, Ni, Cu, Zn, Ag and B. The adsorbent for exhaust gas purification can be suitably used in the applications requiring high heat resistance and high hydrothermal resistance, such as the exhaust gas purification system for internal combustion engine or combustion furnace. The adsorbent can be used particularly preferably for the purification of automobile exhaust gas containing hydrocarbons, nitrogen oxides, etc.

Abstract: An iron-containing crystalline aluminosilicate is provided which befits the incorporation as a component in a hydrocracking catalyst for hydrocarbon oil owing to the feature of exhibiting a highly satisfactory hydrocracking activity at no sacrifice of the yield of an middle distillate.

Abstract: A method for preparing a metalloaluminosilicate, includes the steps of: providing a solution containing a silica source; providing a solution containing an alumina source; providing an aqueous acid solution containing a metal other than silicon or aluminum; mixing the silica source solution with the aqueous acid solution so as to form a silica source-metal containing mixture; mixing the silica source-metal containing mixture with the alumina source solution so as to provide a gel mixture; and hydrothermally crystallizing the gel mixture so as to provide a metalloaluminosilicate material having an aluminosilicate framework and having the metal incorporated into the aluminosilicate framework. A method for preparing aluminosilicate, and specific compositions, are also provided.

Abstract: To provide a humidity adsorbent agent having duplicating advantages of hydrophilic zeolite and silica gel, and a humidity adsorbent element using thereof, a humidity adsorbent agent is used an alumino-silicate which is replaced a part of sodium to Lanthanide in a hydrophilic zeolite. A humidity adsorbent element is constituted that is supported the agent on a carrier comprised of inorganic fiber paper.

Abstract: This invention relates to an EUO-structural-type zeolite that comprises at least one element X that is selected from among silicon and germanium and at least one element T that is selected from among aluminum, iron, gallium, boron, titanium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese. The zeolite of the invention has an X/T ratio of between 5 and 50 and an N/T ratio of between 0.010 and 0.065. This invention also relates to the use of the EUO zeolite as a catalyst in a process for conversion of hydrocarbon feedstocks and more particularly in a process for isomerization of aromatic compounds with 8 carbon atoms per molecule.

Abstract: Process for the manufacture of crystalline solids comprising at least one element chosen from Groups IIIa, IVa and Va and at least one transition metal, according to which at least one source of oxide of the element from Groups IIIa, IVa and Va and at least one transition metal oxide source, which was dissolved beforehand in an alcohol having a pKa below that of water, are hydrolysed in an aqueous medium comprising a mineralizing agent and the gel thus obtained is crystallized in the presence of a structuring agent.

Abstract: A new family of stannosilicate molecular sieves which have the zeolite beta structure are disclosed. These molecular sieves have a three dimensional framework structure composed of SnO2 and SiO2 tetrahedral oxide units and at least one of TiO2 or GeO2 tetrahedral oxide units and have an empirical formula of: (SnxTiySi1-x-y-zGez)2 where “x”, “y” and “z” are the mole fractions of tin, titanium and germanium respectively (“y” and “z” are not simultaneously zero). Processes for the selective oxidation of organic compounds with peroxides using the molecular sieves as catalysts is also presented.

Abstract: A composition of matter is provided including an inorganic porous material having wall portions defining mesopore-sized channels having a mean diameter of between about 15 Å and about 100 Å and a narrow diameter distribution of less than or equal to about 30 Å, the material having a void volume from the mesopore-sized channels of at least about 0.1 cc/g and a surface area of at least about 500 m2/g and having a number of hydroxyl groups of at least about 1.5 mmol of hydroxyl groups per gram of material, and exhibiting thermal and hydrothermal stability at temperatures up to about 500° C. Catalytic materials incorporating aluminum and other active metals, as well as a process for preparing the composition, are also disclosed.

Abstract: The present invention relates to new crystalline zeolite SSZ-52 prepared using a quaternary ammonium cation templating agent having the structure 1

Abstract: The present invention relates to zeolites X, most of the exchangeable sites of which are occupied by lithium and di- and/or trivalent cations, having an improved thermal stability and an improved crystallinity with respect to zeolites of the prior art with the same degree of exchange of lithium and of di- and/or trivalent cations.

Abstract: The present invention relates to a titanium-silicalite (TS-1) molecular sieve and the method for preparation of the same, wherein each crystallite of said titanium-silicalite molecular sieve has a hollow cavity with a radial length of 5-300 nm. The benzene adsorption capacity of the molecular sieve determined at 25° C. and P/P0=0.10 for 1 hour is at least 70 mg/g; and the method for preparation of said molecular sieve comprises an acid-treatment and then an organic-base treatment of the synthesized TS-1 molecular sieve, or only an organic-base treatment. The TS-1 molecular sieve of the present invention has a relatively high reactivity and activity stability in the catalytic oxidation.

Abstract: A process is described for the preparation of zeolitic catalysts in the form of microspheres, comprising zeolite and oligomeric silica, characterized by a high mechanical resistance. The process consists in subjecting to rapid drying the suspension, to which tetra-alkylorthosilicate is optionally added, resulting from the synthesis of zeolite by hydrothermal treatment at autogenous pressure of the reagent mixture containing tetra-alkylammoniumhydroxide as templating agent, and subjecting the product resulting from the drying to calcination.

Abstract: Low temperature hydrothermal treatment of an LTL zeolite-producing mixture produces a colloidal suspension of the zeolite; the suspension may be used as seeds in Al- and Ga-LTL zeolite manufacture.

Abstract: An amorphous potassium aluminosilicate filtration media which may be mixed with activated carbon filters water to remove oxygen, chlorines, hardness, alkalinity, ammonia, hydrogen, hydrogen sulfide, sodium sulfite and other contaminants. The particular sodium aluminosilicate is a porous amorphous material formed under ultraviolet light or sunlight to produce pore sizes of 60 Å to 250 Å at ambient temperatures (20° C.-35° C.) and low relative humidity (5%-20%). The media is initially formed as a microporous primarily amorphous gel containing Na2O, Al2O3, SiO2 and H2O. The sodium therein is displaced by potassium, whereby the filter removes impurities from water without introducing sodium. The potassium aluminosilicate may be a second stage filter to a first stage filter composed of a strong base anion media charged with potassium carbonate and/or bicarbonate.

Abstract: The present invention relates to new crystalline zeolite SSZ-47 prepared using a bicyclo ammonium cation templating agent.

Abstract: The present invention provies an adsorbent which, as compared with an adsorbent comprising a zeolite (an aluminosilicate) of at least about equal Si/(Fe+Al) molar ratio (Fe is substantially absent), has high heat resistance and high hydrothermal resistance and can maintain adsorption capability even when exposed to high temperatures. This adsorbent comprises a &bgr;-silicate molecular sieve containing at least Fe besides H, O and Si and, when Al is contained, containing Fe in a molar amount at least equal to that of Al.

Abstract: Applicants have prepared a novel zeolite identified as LZ-281. This zeolite has the framework topology of zeolite EMT. The LZ-281 zeolite is prepared by removing framework aluminum atoms from EMC-2 zeolite while simultaneously replacing the aluminum atoms with extraneous silicon atoms. This increases the SiO2/Al2O3 ratio versus the starting EMC-2 zeolite and results in the LZ-281 zeolite having increased thermal stability, increased number and/or strength of acid sites and increased activity in hydrocarbon processes requiring strong acid sites.

Abstract: A process for the reduction of ketones or aldehydes to alcohols has been developed. The process involves contacting the ketone or aldehyde with a primary or secondary alcohol and a catalyst at reduction conditions. The catalyst is a molecular sieve having the empirical formula: (MwSnxTiySi1-x-y-zGez)O2 where M is a trivalent metal such as aluminum or boron. These molecular sieves have a microporous three dimensional framework structure of at least SiO2 and SnO2 tetrahedral units, a crystallographically regular pore system and the characteristic x-ray diffraction pattern of zeolite beta.

Abstract: This invention relates to a novel porous crystalline synthetic catalyst having the general formula expressed in the form of oxides: M 2/n o. x Al2O3 Y SiO2, Z ZnO wherein, M represents a proton and/or a metallic cation, n is the valence of the said cation, Y/x is a number ranging from 5 to 1000 (SiO2/Al2OS molar ratio), and a process for preparing such catalyst by (a) forming a reaction medium comprising water, a silicon source, an aluminium source, a zinc source and a source of structure directing agent capable of providing organic cations, (b) heating the said reaction mixture to a temperature ranging from 80° C. to 230° C. at autogeneous phase, and (c) heating the solid content obtained at the end of step (b) to a temperature greater than 400° C., so as to eliminate the organic species present due to the use of the structuring agent.

Abstract: The invention concerns a NU-86 zeolite comprising silicon and at least one element T selected from the group formed by aluminium, iron, gallium and boron, preferably aluminium, characterized in that element T has been extracted from the framework, and in that it has a global Si/T atomic ratio of more than about 20. Element T is extracted from the zeolitic framework (or network) by means of at least one heat treatment, optionally carried out in the presence of steam, followed by at least one acid attack using at least one solution of a mineral or organic acid, or by direct acid attack. The invention also concerns a catalyst comprising the zeolite which is at least partially in its acid form, and the use of the catalyst for the conversion of hydrocarbons, in particular for the oligomerization of olefins.

Abstract: The present invention relates to new crystalline zeolite SSZ-47 prepared using a bicyclo ammonium cation templating agent.

Abstract: Novel crystalline zeolitic materials of the faujasite structure having an increased ratio of zeolitic surface area to mesoporous surface area and distinctive X-Ray Diffraction peak ratios are produced by calcining zeolite Y of low sodium content at temperatures above 600.degree. C.

Abstract: The instant invention is directed to a process for selectively removing detrital material from boro-aluminosilicate selected from EUO, NES and intergrown mixtures of EUO and NES boro-aluminosilicate topology zeolites having a Si/M ratio of greater than about 40, comprising treating said boro-aluminosilicate with a base for a time and at a temperature sufficient to remove said detrital material from said boro-aluminosilicate wherein the concentration of said base is less than about 0.5 normal. Base concentrations in excess of this level may cause the removal of framework components leading to subsequent structural degradation.

Abstract: The present invention relates to new crystalline, molecular sieve CIT-6 that has the topology of zeolite beta. CIT-6 can be in an all-silica form, in a form wherein zinc is in the crystal framework, or a form containing silicon oxide and non-silicon oxides. In a preferred embodiment, CIT-6 has a crystal size of less than one micron and a water adsorption capacity of less than 0.05 g/g.

Abstract: Granulates which contain titanium silicalite-1 are composed of silicon dioxide, titanium dioxide and titanium silicalite-1 crystals. The granulates can be prepared by spray-drying or spray granulating the crystallization suspension. The granulates may be used as suspension catalysts, such as for the epoxidation of olefins using hydrogen peroxide.

Abstract: A composition of matter represented by the formulaM.sup.n+.sub.z/n [Si.sub.(2-x-y) Al.sub.(y) Zn.sub.(x) ]O.sub.4 .multidot..cndot.wH.sub.2 OwhereinM is a cation selected from Groups 1, 2, 7, 10, 11, 12 and the f block elements as defined by the Periodic Table of the elements as adopted by IUPAC; n is the valence of the selected cation, M; x is greater than or equal to 0.02 but less than or equal to 1;y is less than or equal to 0.98; z>0.54; and w ranges from 0 to about 8;provided that when z.gtoreq.0.80, then 2x+y does not equal z;which composition of matter has the FAU structure with zinc residing in tetrahedral positions in the framework of the FAU structure;and whereupon such composition of matter is converted to a hydrated sodium form, the hydrated sodium form of the composition of matter exhibits a lattice constant (a.sub.0)wherein ##EQU1## where R represents the Si/Al molar ratio of the composition of matter.

Abstract: An aluminosilicate zeolite is disclosed which has a silica/alumina mole ratio of about 500 or less and pores with at least one cross-sectional dimension greater than 7.5 Angstroms. Also disclosed is a zeolite comprising a first oxide selected from the group consisting of silicon oxide, germanium oxide and mixtures thereof and a second oxide selected from the group consisting of aluminum oxide, gallium oxide, iron oxide, indium oxide and mixtures of aluminum oxide, boron oxide, gallium oxide, iron oxide, indium oxide, titanium oxide, and vanadium oxide, the zeolite having, after calcination, the X-ray diffraction lines of Table I, and having a mole ratio of the first oxide to the second oxide of about 500 or less. The zeolites are useful in catalysts for hydrocarbon conversion reactions.

Abstract: An oxygen scavenging composition composed of a carrier material and a metal-loaded cationic exchange material having the metal in a zero valence state. The composition is contained within the interior cavity of a container to scavenge oxygen therein. The composition may form at least a part of the interior surface of the container or be present therein in the form of a film, mat, sachet or ceramic.

Abstract: The present invention relates to a process for preparing zeolites having 12-ring pores and having at least one internal pore structure with a cross section measuring greater than 7.5 .ANG. using substituted-piperidinium cations as organic templates.

Abstract: Disclosed are novel crystalline molecular sieves having the framework of ETS-10 titanium silicate which contain both octahedral and tetrahedral titanium atoms and are in acid form. The sieves are prepared by adding a complexing agent such as hydrogen peroxide during synthesis or by treating a synthesized titanium silicate molecular sieve with a reagent that replaces tetrahedral silicon with tetrahedral titanium atoms.

Abstract: The present invention relates to new crystalline zeolite SSZ-48 prepared using a decahydroquinolinium cation templating agent.

Abstract: A new family of crystalline titanostannosilicate molecular sieves have been synthesized. These molecular sieves have a microporous three-dimensional framework of TiO.sub.2, SnO.sub.2 and SiO.sub.2 tetrahedral oxide units and are represented by the empirical formula:(Ti.sub.x Sn.sub.y Si.sub.z)O.sub.2where "X", "y" and "z" are the mole fractions of Ti, Sn and Si respectively. These molecular sieves are active catalysts for the epoxidation of olefins by peroxides such as hydrogen peroxide.

Abstract: This invention relates to a new synthetic porous crystalline material, designated MCM-67, a method for its preparation and use thereof in catalytic conversion of organic compounds. MCM-67 appears to be closely related in structure to VPI-8 and SSZ-41 but is synthesized without zinc and in the presence of manganese and/or cobalt ions.

Abstract: A method is provided for preparing fully lattice-inserted titanium zeolites by post-synthesis processing of the synthetic zeolite optionally containing titanium with an inorganic acid, wherein the post-synthesis processing comprises processing the zeolite in the presence of at least one titanium source with a solution containing at least one oxidizing inorganic acid having a higher redox potential than an acidic tetravalent titanium solution. The invention is also directed to the use of the zeolites.

Abstract: Titanium-containing molecular sieves are prepared by adding an aqueous template solution to a mixture of tetraalkyl orthosilicate and tetraalkyl orthotitanate, crystallizing the reaction mixture in an autoclave and separating the solid obtained optionally, the solid is washed and calcined. The titanium-containing molecular sieves can be used as catalysts, inter alia in the epoxidation of olefins.

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 for synthesizing a high-silica aluminosilicate molecular sieve, includes: subjecting, to hydrothermal synthesis, a raw material containing Al, H, O and Si and, as other elements, at least Fe and having a Si/Al molar ratio of 50 or more and a Si/Fe molar ratio of 80 or less (45 or less when a high-silica aluminosilicate molecular sieve having a .beta. type zeolite structure is produced) and then subjecting the resulting material to heat treatment in an oxidizing atmosphere at 300.degree. C. or more. The above process can synthesize a high-silica zeolite low in Al content directly without dealumination operation, and can provide process simplification and a higher yield.