Abstract: A catalyst support comprising at least 95% silicon carbide, having surface areas of ?10 m2/g and pore volumes of ?1 cc/g. A method of producing a catalyst support, the method including mixing SiC particles of 0.1-20 microns, SiO2 and carbonaceous materials to form an extrusion, under inert atmospheres, heating the extrusion at temperatures of greater than 1400° C., and removing residual carbon from the heated support under temperatures below 1000° C. A catalyst on a carrier, comprising a carrier support having at least about 95% SiC, with a silver solution impregnated thereon comprising silver oxide, ethylenediamine, oxalic acid, monoethanolamine and cesium hydroxide. A process for oxidation reactions (e.g., for the production of ethylene oxide, or oxidation reactions using propane or methane), or for endothermic reactions (e.g., dehydrogenation of paraffins, of ethyl benzene, or cracking and hydrocracking hydrocarbons).

Abstract: A method of forming a flexible structure for a rocket motor assembly comprises forming a polysiloxane composition comprising at least two different silicone materials. A preliminary structure is formed from the polysiloxane composition. The preliminary structure is cured to crosslink at least a portion of different polysiloxane chains of the preliminary structure. A flexible structure for a rocket motor assembly, a flexible assembly for a rocket motor assembly, a moveable thrust nozzle assembly for a rocket motor assembly, and a rocket motor assembly are also described.

Abstract: Catalyst compositions comprising an inorganic porous material with pore diameters of at least 2 nm and of crystals of molecular sieve, characterized in that the crystals of molecular sieve have an average diameter, measured by scanning electron microscopy, not bigger than 50 nm, and in that the catalyst composition presents a concentration of acid sites ranges from 50 to 1200 ?mol/g measured by TPD NH3 adsorption; and the XRD pattern of said catalyst composition is the same as the X ray diffraction pattern of said inorganic porous material.

Abstract: A method for the production of hydrocarbon(s), such as methane, substituted hydrocarbons, such as methanol, or the production of hydrogen, the method comprising the steps of contacting a first catalyst with water in order to photocatalyse the splitting of at least some of the water into hydrogen and oxygen; and contacting a second catalyst with a gas stream comprising carbon dioxide and at least some of the hydrogen produced from step (a) in order to photocatalyse the reaction between the hydrogen and carbon dioxide to produce hydrocarbon(s), such as methane, and/or substituted hydrocarbons, such as methanol. In an embodiment, the catalyst comprises gold and or ruthenium nanoclusters supported on a substrate.

Abstract: A catalyst composition contains an inorganic porous material with pore diameters of at least 2 nm and of crystals of molecular sieve. The crystals of molecular sieve have an average diameter, measured by scanning electron microscopy, not bigger than 50 nm. The catalyst composition has a concentration of acid sites ranges from 50 to 1200 ?mol/g measured by TPD NH3 adsorption. An XRD pattern of the catalyst composition is the same as an XRD pattern of the inorganic porous material.

Abstract: A system and attendant assembly for incorporating at least one alternate fuel supply, such as of the type used in combination with a conventional distillate fuel, to power a heavy duty industrial vehicle, such as a mine haul dump truck. The system and attendant assembly includes a mounting assembly structured for containment and support of a primary fuel tank and an auxiliary fuel tank. The mounting assembly is disposed on a mounting area laterally adjacent between the two tires on a side of the truck, wherein the mounting assembly and mounting area are cooperatively disposed and structured to facilitate storage of the alternate fuel and operative communication and distribution thereof with the powering operations of the vehicle.

Abstract: Provided is a process of conducting olefin epoxidation which comprises contacting an olefin and an oxidant in the presence of Ti-UCB-4 to thereby prepare an epoxide. The Ti-UCB-4 catalyst is prepared by delaminating a B-SSZ-70 precursor and substituting Ti atoms for the boron atoms on the surface of the zeolite material lattice framework.

Abstract: A method for producing an epoxide is disclosed. The method includes performing a reaction of an olefin compound and an oxidant by using a titanium-silicon molecular sieve as a catalyst, in the presence of a silicon oxide containing an alkaline earth metal as a coagent. The selectivity and yield of epoxide are increased by using a silicon oxide containing an alkaline metal as a coagent.

Abstract: The present invention relates to a direct conversion of olefin to olefin oxide, which are important and versatile intermediates used in the production of a large variety of valuable consumer products such as polyurethane foams, polymers, alkylene glycol, cosmetics, food emulsifiers and as fumigants and insecticides. More specifically, the present invention provides a process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a halogen compound additive and a catalyst comprising copper, ruthenium or both thereof.

Abstract: This invention relates to catalyst carriers to be used as supports for metal and metal oxide catalyst components of use in a variety of chemical reactions. More specifically, the invention provides a process of formulating an alpha alumina carrier that is suitable as a support for silver and the use of such catalyst in chemical reactions, especially the epoxidation of ethylene to ethylene oxide. The composition comprises at least one hydrated precursor of alpha alumina; an optional alpha alumina; and a binder. The composition is substantially free of seeding particles.

Abstract: A hydrolyzed divinylarene dioxide resin composition including the reaction product of (a) a divinylarene dioxide, and (b) water; a process for making the hydrolyzed divinylarene dioxide resin composition; and a curable hydrolyzed divinylarene dioxide resin composition made therefrom. The cured product made from the above hydrolyzed divinylarene dioxide resin composition offers improved properties such as a lower viscosity and a high heat resistance compared to known cured products prepared from known epoxy resins.

Abstract: A process for preparing a divinylarene dioxide including reacting (a) at least one divinylarene with (b) at least one oxidant in the presence of (c) at least one transition metal complex catalyst, and (d) optionally, in the presence of a solvent, and (e) optionally in the presence of a catalyst modifier under conditions to form a divinylarene dioxide product.

Abstract: The present disclosure includes a system and method for the production of oxidized olefins. Two or more reactors include a number of reaction tubes each having a first surface defining a first side and a second surface defining a second of each of the tubes side are provided. A catalyst for catalytic oxidation of olefins can be located on the first side of the number of reaction tubes is included. A common supply line supplies inlets to each reactor that provide a mixture comprising olefins and oxygen to the catalyst. Product outlet streams of each reactor receive at least the oxidized olefin product and are joined to a single product stream. Coolant fluid passes through the reactors to remove heat from the number of reaction tubes and flows into a single coolant drum connected to the two or more reactors. The single coolant drum receives the coolant fluid from a number of coolant fluid outlet streams of each of the reactors.

Abstract: This invention relates to a process for converting ethylene to ethylene oxide comprising: flowing reactants comprising ethylene and oxygen or a source of oxygen in a microchannel reactor in contact with a catalyst to form a product comprising ethylene oxide, the reactants undergoing an exothermic reaction in the microchannel reactor; and transferring heat from the microchannel reactor to a heat exchanger.

Abstract: A process for preparing a divinylarene dioxide comprising reacting a divinylarene, such as divinylbenzene, with hydrogen peroxide in the presence of a solvent and in the presence of a catalyst to from a divinylarene dioxide; wherein the hydrogen peroxide is present in the reaction mixture in an excess or an equivalent mole ratio per mole of divinylarene.

Abstract: The invention relates to a method for the production of epichlorohydrin, wherein a chloropropane-containing ally chloride in excess is reacted in a first reaction stage with hydrogen peroxide. The non-reacted ally chloride is separated and returned to the reaction, wherein part of the separated ally chloride is added to a second reaction stage and reacted with hydrogen peroxide, wherein the hydrogen peroxide quantity is selected in the second reaction stage such that the ally chloride is largely reacted. The chloropropanes are separated from the reaction mixture of the second reaction stage by means of distillation and removed from the process.

Abstract: A process for producing propylene oxide, which comprises supplying an organic peroxide and propylene to an epoxidation reactor in which a solid catalyst is packed thereby continuously producing propylene oxide through epoxidation reaction, wherein said process comprises cooling at least a part of the propylene before supplying to separate and remove water contained in the propylene, and supplying the propylene in which water has been separated and removed to the epoxidation reactor.

Abstract: Methods for the epoxidation of alkenes are provided. The methods include the steps of exposing the alkene to a two-component catalyst system in an aqueous solution in the presence of carbon monoxide and molecular oxygen under conditions in which the alkene is epoxidized. The two-component catalyst system comprises a first catalyst that generates peroxides or peroxy intermediates during oxidation of CO with molecular oxygen and a second catalyst that catalyzes the epoxidation of the alkene using the peroxides or peroxy intermediates. A catalyst system composed of particles of suspended gold and titanium silicalite is one example of a suitable two-component catalyst system.

Abstract: A novel process for producing a polyfunctional epoxy monomer is provided that facilitates separation of an aqueous layer catalyst from a reaction solution and has satisfactory hydrogen peroxide efficiency by reacting an aqueous hydrogen peroxide solution with a polyolefin without using an organic solvent and under mild conditions. The process in the present invention is a process for producing a corresponding epoxy compound by reacting an organic compound having a carbon-carbon double bond with hydrogen peroxide present in an aqueous hydrogen peroxide solution to epoxidate the double bond, wherein a tungsten compound and tertiary amine are used as reaction catalysts.

Abstract: The invention is a process for epoxidizing an olefin with hydrogen and oxygen in a solvent comprising acetonitrile in the presence of an quinone-acid salt and a catalyst comprising a titanium zeolite and a noble metal. The process results in higher productivity and improved selectivity to propylene oxide from hydrogen and oxygen, as compared to processes that use only a quinone.

Abstract: A method is for producing propylene oxide, the method including the steps of: reacting hydrogen peroxide with propylene either in an acetonitrile solvent or in a mixture of solvents which include acetonitrile and water, in presence of a titanosilicate catalyst, whereby a reaction mixture containing propylene oxide is obtained; separating the reaction mixture obtained in the reacting into a gas and a reaction liquid; and distilling the reaction liquid obtained in the separating, whereby the reaction liquid is separated into a column top liquid containing propylene oxide, and a column bottom liquid including acetonitrile or a combination of acetonitrile and water, in combination with other steps. This enables industrially efficient production of propylene oxide with use of acetonitrile.

Abstract: It is intended to provide a production method for producing propylene oxide from propylene, hydrogen and oxygen, with improved reaction rate. The present invention provides a method for producing propylene oxide, comprising a step of reacting propylene, hydrogen and oxygen, in the presence of a Pd-supported catalyst, a titanosilicate catalyst and a Pd-free carbon material, in a liquid phase.

Abstract: A process for more efficiently producing propylene oxide from propylene, oxygen, and hydrogen with catalysts which comprise a noble metal and a titanosilicate having pores not smaller than a 12-membered oxygen ring. The process for propylene oxide production is characterized by reacting propylene, oxygen, and hydrogen in a solution comprising water, a nitrite compound, and an ammonium salt in the presence of a noble metal catalyst and a titanosilicate catalyst having pores not smaller than a 12-membered oxygen ring.

Abstract: A method for producing an epoxy compound characterized by comprising contacting an olefin, oxygen and hydrogen with a noble metal and a crystalline titanosilicate having an MFI structure in a liquid phase in the presence of a quinoid compound selected from the group consisting of a phenanthraquinone compound and a compound represented by formula (1) wherein R1, R2, R3 and R4 represent a hydrogen atom, or R1 and R2 or R3 and R4 adjacent to each other are each independently bound at the ends and represent, together with a carbon atom of a quinone to which they are respectively attached, a benzene ring which may be substituted with an alkyl group or a hydroxyl group, or a naphthalene ring which may be substituted with an alkyl group or a hydroxyl group; and X and Y, which is the same or different, represent an oxygen atom or an NH group, or a dihydro compound thereof.

Abstract: A process for producing propylene oxide from propylene is disclosed. The process comprises reacting propylene and an oxidant selected from the group consisting of hydrogen peroxide and oxygen in a slurry comprising a catalyst and a solvent having a boiling point of 110° C. or lower to produce a reaction mixture. The reaction mixture including the catalyst is distilled to produce a vapor stream comprising propylene, propylene oxide, and at least a portion of the solvent, and a slurry stream comprising the solvent and the catalyst. At least a portion of the slurry stream is recycled to the reaction step.

Abstract: The invention is a process for epoxidizing an olefin with hydrogen and oxygen in a solvent comprising acetonitrile in the presence of an quinone-acid salt and a catalyst comprising a titanium zeolite and a noble metal. The process results in higher productivity and improved selectivity to propylene oxide from hydrogen and oxygen, as compared to processes that use only a quinone.

Abstract: A catalyst, useful for the direct epoxidation of olefins, is disclosed. The catalyst comprises palladium nanoparticles, support nanoparticles, and a titanium zeolite having a particle size of 2 microns or greater. The palladium nanoparticles are deposited on the support nanoparticles to form supported palladium nanoparticles, and the supported palladium nanoparticles are deposited on the titanium zeolite; or the supported palladium nanoparticles are deposited on a carrier having a particle size of 2 microns or greater. The invention also includes a process for producing an epoxide comprising reacting an olefin, hydrogen and oxygen in the presence of the catalyst. The catalysts are more active in epoxidation reactions, while demonstrating the same or better selectivity.

Abstract: Titanium-MWW zeolite is prepared by heating a gel formed from a titanium compound, a silicon source, a boron source, an MWW-templating agent, and water at a temperature in the range of 35° C. to 75° C. for a period of 8 to 30 hours to form a pre-crystallized gel, and heating the pre-crystallized gel to a temperature in the range of 160° C. to 190° C. for a period of 5 or more days to form the titanium-MWW zeolite. The zeolite, after it is contacted with an acid, is useful in olefin epoxidation with hydrogen peroxide.

Abstract: This invention is a process for producing propylene oxide. The process comprises first contacting a titanium zeolite with a reaction feed comprising propylene, hydrogen peroxide, tertiary butyl alcohol, and water to produce a product stream comprising propylene, propylene oxide, propylene glycol, tertiary butyl alcohol, and water. The product stream is distilled to produce a first overhead stream comprising propylene and a first bottoms stream comprising propylene oxide, propylene glycol, tertiary butyl alcohol, and water. The first bottoms stream is distilled to produce a second overhead stream comprising propylene oxide and a second bottoms product stream comprising propylene glycol, tertiary butyl alcohol, and water. The second bottoms stream is distilled to produce a third overhead stream comprising an azeotrope of tertiary butyl alcohol and water and a third bottoms stream comprising propylene glycol and water.

Abstract: A method for producing propylene oxide which comprises reacting propylene, oxygen and hydrogen, in the presence of a titanosilicate and a noble metal supported on silylated active carbon, in a solvent.

Abstract: The present invention relates to a method for producing propylene oxide comprising the step of producing propylene oxide from hydrogen, oxygen and propylene in the presence of a noble metal catalyst, a titanosilicate and an organic sulfur compound in a mixed solvent of water and a nitrile compound, wherein the titanosilicate has a pore composed 12- or more-membered oxygen ring.

Abstract: There is disclosed a method for producing propylene oxide, which includes: reacting propylene, oxygen, and hydrogen in the presence of a noble metal catalyst and a titanosilicate catalyst in a liquid phase containing a polycyclic compound, which is unsubstituted or substituted with at least one substituent selected from Group B below, wherein the polycyclic compound is composed of two or more identical or different ring compounds selected from Group A below and the ring compounds are fused, directly bonded, or bonded by a linkage group selected from the group consisting of an oxygen atom, carbon chain, and a group composed of oxygen atom(s) and a carbon chain, provided that said polycyclic compound is not a polycyclic compound having hydroxy groups or oxo groups at para or. ortho positions. Group A consisting of benzene, cyclopentadiene, cycloheptatriene, furane, pyrane, cyclopentene, cyclopentane, cyclohexane, cyclohexene, cyclohexadiene, cycloheptane, cycloheptene, and cycloheptadiene.

Abstract: An object of the present invention is to provide an efficient process for producing an epoxy compound from olefin, oxygen and hydrogen. The process of the present invention is characterized in that an olefin, oxygen and hydrogen are reacted in a liquid phase in the presence of a titanosilicate selected from the group consisting of a crystalline titanosilicate having MEL structure, MTW structure, BEA structure, MWW structure or DON structure, a mesoporous titanosilicate and a lamellar titanosilicate, a noble metal catalyst, and a quinoid compound or a dihydro-form of quinoid compound.

Abstract: A process for producing propylene oxide from propylene is disclosed. The process comprises reacting propylene and an oxidant selected from the group consisting of hydrogen peroxide and oxygen in a slurry comprising a catalyst and a solvent having a boiling point of 110° C. or lower to produce a reaction mixture. The reaction mixture including the catalyst is distilled to produce a vapor stream comprising propylene, propylene oxide, and at least a portion of the solvent, and a slurry stream comprising the solvent and the catalyst. At least a portion of the slurry stream is recycled to the reaction step.

Abstract: We describe the preparation and characterization of two zinc hybrid luminescent structures based on the flexible and emissive linker molecule, trans-(4-R,4?-R?) stilbene, where R and R? are mono- or poly-coordinating groups, which retain their luminescence within these solid materials. For example, reaction of trans-4,4?-stilbenedicarboxylic acid and zinc nitrate in the solvent dimethylformamide (DMF) yielded a dense 2-D network featuring zinc in both octahedral and tetrahedral coordination environments connected by trans-stilbene links. Similar reaction in diethylformamide (DEF) at higher temperatures resulted in a porous, 3-D framework structure consisting of two interpenetrating cubic lattices, each featuring basic to zinc carboxylate vertices joined by trans-stilbene, analogous to the isoreticular MOF (IRMOF) series. We demonstrate that the optical properties of both embodiments correlate directly with the local ligand environments observed in the crystal structures.

Abstract: Disclosed is a method for producing propylene oxide wherein propylene is directly oxidized with oxygen, as required, water and a catalytic amount of hydrogen in a gas phase in the presence of a gold cluster catalyst supported on an alkali-treated titanosilicalite or mesoporous titanosilicate support, which is produced by an alkaline treatment of titanosilicalite or mesoporous titanosilicate with aqueous solution of NaOH, KOH or CsOH.

Abstract: A catalyst, useful for the direct epoxidation of olefins, is disclosed. The catalyst comprises palladium nanoparticles, support nanoparticles, and a titanium zeolite having a particle size of 2 microns or greater. The palladium nanoparticles are deposited on the support nanoparticles to form supported palladium nanoparticles, and the supported palladium nanoparticles are deposited on the titanium zeolite; or the supported palladium nanoparticles are deposited on a carrier having a particle size of 2 microns or greater. The invention also includes a process for producing an epoxide comprising reacting an olefin, hydrogen and oxygen in the presence of the catalyst. The catalysts are more active in epoxidation reactions, while demonstrating the same or better selectivity.

Abstract: The invention provides a process for preparing alkene oxides by contacting in a microreaction system (?-reactor) a C2- C3 alkene with an oxidizing agent comprising a peroxo compound.

Abstract: Methods for the epoxidation of alkenes are provided. The methods include the steps of exposing the alkene to a two-component catalyst system in an aqueous solution in the presence of carbon monoxide and molecular oxygen under conditions in which the alkene is epoxidized. The two-component catalyst system comprises a first catalyst that generates peroxides or peroxy intermediates during oxidation of CO with molecular oxygen and a second catalyst that catalyzes the epoxidation of the alkene using the peroxides or peroxy intermediates. A catalyst system composed of particles of suspended gold and titanium silicalite is one example of a suitable two-component catalyst system.

Abstract: The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of an alkanoic acid and a catalyst comprising a noble metal and a titanium zeolite, wherein the catalyst has not been reduced prior to epoxidation. This process surprisingly gives significantly improved productivity and reduced formation of unwanted propane compared to processes that do not use the alkanoic acid modifier.

Abstract: The present invention relates to a method for producing propylene oxide, characterized in that peroxide is reacted with propylene in the presence of a titanosilicate catalyst which has an X-ray diffraction pattern of the values indicated below and is represented by the formula. xTiO2·(1?x)SiO2 (In the formula, x denotes a numerical value of 0.0001 to 0.1.) X-ray diffraction patterns (interplanar spacing of lattice d/?) 13.2±0.6 12.3±0.3 11.0±0.3 9.0±0.3 6.8±0.3 3.9±0.2 3.5±0.1 3.4±0.1.

Abstract: The present invention relates to a process for producing propylene oxide comprising (I) reacting propene with hydrogen peroxide in the presence of a catalyst to give a mixture (GI) comprising propylene oxide, unreacted propene, and oxygen; (II) separating propylene oxide from mixture (GI) to give a mixture (GII) comprising propene and oxygen; (III) reducing the oxygen comprised in mixture (GII) at least partially by reaction with hydrogen in the presence of a catalyst comprising Sn and at least one noble metal.

Abstract: The invention is a process for epoxidizing an olefin with hydrogen and oxygen in a solvent comprising tertiary butyl alcohol or acetonitrile in the presence of an amide modifier and a catalyst comprising titanium-MWW zeolite and a noble metal. The process produces less ring-opened products such as glycols and glycol ethers when performed in the presence of the amide, while maintaining low alkane byproduct formed by the hydrogenation of olefin.

Abstract: Disclosed is a method for producing propylene oxide wherein propylene is directly oxidized with oxygen, as required, water and a catalytic amount of hydrogen in a gas phase in the presence of a gold cluster catalyst supported on an alkali-treated titanosilicalite or mesoporous titanosilicate support, which is produced by an alkaline treatment of titanosilicalite or mesoporous titanosilicate with aqueous solution of NaOH, KOH or CsOH.

Abstract: Titanium silicallite crystals useful as catalyst for the production of propylene oxide are prepared by forming a solution of a silicon component, a titanium component and a template, the mol ratio of template to silicon component being 0.25 or less and heating the solution to reaction temperature at a rate not to exceed 0.3° C./min.

Abstract: The present invention provides an apparatus for producing an epoxy compound derived from an olefin by causing a reaction of hydrogen, oxygen, and the olefin in a liquid solvent in the presence of a catalyst in a reactor, wherein a vapor phase in the reactor contains an inert gas; hydrogen, an oxygen-containing gas with an oxygen concentration of at least 90% by volume, and the olefin are supplied to the vapor phase and/or liquid phase of the reactor to cause a reaction; and there exist a means for taking out the liquid phase containing the reaction product from the reactor.

Abstract: A supported catalyst and a catalyst mixture, useful for the direct epoxidation of olefins, are disclosed. The supported catalyst comprises a noble metal, lead, and a carrier that has been treated by contacting with nitric acid. The catalyst mixture comprises a titanium or vanadium zeolite and the supported catalyst. The invention also includes a process for producing an epoxide comprising reacting an olefin, hydrogen and oxygen in the presence of the catalyst mixture. The process results in significantly reduced alkane byproduct formed by the hydrogenation of olefin.

Abstract: A method is for producing propylene oxide, including reacting propylene, hydrogen, and oxygen, in an acetonitrile solvent or in a mixture of solvents which include acetonitrile and water, in presence of a titanosilicate catalyst and a palladium catalyst supported on a carrier, the propylene being fed into the reaction in the form of liquefied propylene. This realizes efficient production of propylene oxide.

Abstract: A process for making propylene oxide from propylene is disclosed. The process comprises reacting propylene, oxygen, and hydrogen in the presence of a catalyst and a solvent to produce a reaction mixture comprising propylene oxide. Separation of propylene, oxygen, hydrogen, and propylene oxide from the reaction mixture results in a residual mixture comprising methanol. A portion of the residual mixture is recycled to the reaction. A portion of the residual mixture is distilled to generate a distilled methanol stream, which is recycled to the reaction.

Abstract: A carrier that may be used in the manufacture of an olefin epoxidation catalyst is provided that is prepared from a process involving depositing boron on the carrier and subsequently calcining the carrier. Also provided is an olefin epoxidation catalyst comprising a silver component deposited on such a calcined carrier. Also provided is a process for the epoxidation of an olefin employing such a catalyst and a process for producing a 1,2-diol, a 1,2-diol ether, or an alkanolamine employing the olefin oxide.