Abstract: A bis-imine complex of lanthanides having general formula (I): Said bis-imine complex of lanthanides having general formula (I) can be advantageously used in a catalytic system for the (co)polymerization of conjugated dienes.

Abstract: Disclosed herein are energetic compositions and methods of making thereof. A composition includes hydrazinium nitroformate (HNF) particles dispersed in a polymeric binder and a bonding agent bonded to a surface of at least a portion the HNF particles. The bonding agent disclosed is a Lewis acid.

Abstract: Disclosed is a Ce-based composite oxide catalyst for selective catalytic reducing nitrogen oxides with ammonia, which comprises Ce oxide and at least one oxide of transition metal except Ce. The Ce-based composite oxide catalyst is prepared by a simple method which uses non-toxic and harmless raw materials, and it has the following advantages: high catalytic activity, and excellent selectivity for generating nitrogen etc. The catalyst can be applied in catalytic cleaning plant for nitrogen oxides from mobile and stationary sources.

Abstract: A carbon oxides conversion process includes reacting a carbon oxide containing process gas containing hydrogen and/or steam and containing at least one of hydrogen and carbon monoxide in the presence of a catalyst including shaped units formed from a reduced and passivated catalyst powder, the powder including copper in the range 10-80% by weight, zinc oxide in the range 20-90% by weight, alumina in the range 5-60% by weight and optionally one or more oxidic promoter compounds selected from compounds of Mg, Cr, Mn, V, Ti, Zr, Ta, Mo, W, Si and rare earths in the range 0.01-10% by weight, wherein said shaped units have a reduced to as-made mean horizontal crush strength ratio of ?0.5:1 and a copper surface area above 60 m2/g Cu.

Abstract: The purpose of the present invention is to provide a spherical or ellipsoidal magnesium alcoholate having a narrow particle size distribution even when the particle size is small. The present invention provides a method for producing a magnesium alcoholate by adding in a portionwise manner to a reaction system and reacting, metallic magnesium, an alcohol, and at least one of a halogen or a halogen atom-containing compound in the reaction system under alcohol reflux, which is a method for producing a magnesium alcoholate characterized in that a mixture of metallic magnesium, an alcohol, and at least one of a halogen or a halogen atom-containing compound is added to the reaction system at each portionwise addition.

Abstract: Provided is a gas generating agent with a low combustion temperature and good ignition ability. The gas generating agent includes: (a) a fuel; (b) an oxidizing agent including a basic metal nitrate; (c) a basic metal carbonate; and (d) a binder (not including a component selected from starch, etherified starch, methyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, guar gum, etherified guar gum, tamarind gum, poly(vinyl alcohol), polyvinyl ether, polyacrylamide, polyethylene oxide, and polyvinyl pyrrolidone). The fuel of the component (a) includes melamine cyanurate (MC) and nitroguanidine (NQ), with MC/NQ (ratio of contents) of being within a range of 0.20 to 1.50.

Abstract: Provided are a method of manufacturing an alumina-based abrasive grain, which includes preparing boehmite powder and activated alumina powder as starting materials, forming a sol by wet-blending and crushing the boehmite powder, the activated alumina powder, a solvent and a deflocculant, heating the sol at a first temperature which is higher than a room temperature and lower than a boiling point of the solvent and stirring the sol so as not to generate a precipitate, forming a gel by heating the sol at a second temperature higher than the first temperature at which a viscosity of the sol is increased and the sol becomes a paste, blending the gel with an organic solvent and performing wet crushing on the resulting mixture, preparing a powder by drying the wet-crushed gel, blending a binder and a solvent with the dried product, which is the powder, and molding the resulting mixture, calcining the molded product, performing dry crushing on the calcined product, and sintering the dry-crushed product to transform

Abstract: A method for preparing a catalyst comprising (i) preparing a calcined shaped calcium aluminate catalyst support, (ii) treating the calcined shaped calcium aluminate support with water, and then drying the support, (iii) impregnating the dried support with a solution containing one or more metal compounds and drying the impregnated support, (iv) calcining the dried impregnated support, to form metal oxide on the surface of the support and (v) optionally repeating steps (ii), (iii) and (iv) on the metal oxide coated support. The method provides an eggshell catalyst in which the metal oxide is concentrated in an outer layer on the support.

Abstract: An energetic material comprising an elemental fuel, an oxidizer or other element, and a carbon nanofiller or carbon fiber rods, where the carbon nanofiller or carbon fiber rods are substantially homogeneously dispersed in the energetic material. Methods of tailoring the electrostatic discharge sensitivity of an energetic material are also disclosed.

Abstract: Composite compositions and machine and contact tools, for example, metal boring tools and face mills that are manufactured from them. The tools are provided with composite structure to lighten the tools and yet retain the strength and durability of the tool. The novelty resides in the use of additives to certain composites that make up a portion of the tool, especially tool bars.

Abstract: A method of making a polycrystalline diamond compact includes forming multiple layers of premised diamond particles and carbonate material, where the carbonate material includes an alkaline earth metal, carbonate, and where each layer has a weight percent ratio of diamond to carbonate that is different from adjacent layers. The layers are subjected to high pressure high temperature conditions to form polycrystalline diamond.

Abstract: A method for preparing a silica-modified catalyst support is described including: (I) applying an alkyl silicate to the surface of a porous support material in an amount to produce a silica content of the silica-modified catalyst support, expressed as Si, in the range 0.25 to 15% by weight, (ii) optionally drying the resulting silicate-modified support, (iii) treating the support with water, (iv) drying the resulting water-treated support, and (v) calcining the dried material to form the silica-modified catalyst support.

Abstract: A process for producing an intermediate emulsion comprising an oxidizer solution, fuel and emulsifier, which process comprises the steps of: (a) mixing in a micromixer an oxidizer solution with a fuel blend comprising a fuel and an emulsifier so as to solubilize a portion of the oxidizer solution in the fuel blend to produce a precursor product; (b) mixing the precursor product obtained in step (a) using a micromixer in one or more successive stages in order to form the intermediate emulsion.

Abstract: Provided is a gas generating composition with a low combustion temperature, good ignition ability, and a high heat resistance. The gas generating composition includes: (a) a fuel; (b) an oxidizing agent including a basic metal nitrate; (c) a basic metal carbonate; and (d) a binder. The fuel of the component (a) includes melamine cyanurate (MC) and nitroguanidine (NQ), with a ratio (MC/NQ) of contents of MC and NQ being within a range of 0.3 to 1.5. The binder of the component (d) is one or two or more selected from: (d-1) starch, etherified starch, methyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, and hydroxyethyl cellulose; (d-2) poly(vinyl alcohol), polyvinyl ether, polyethylene oxide, polyvinyl pyrrolidone, and polyacrylamide; (d-3) guar gum, etherified guar gum, and tamarind gum.

Abstract: An oxidation catalyst is disclosed, which contains Ce and Ga, and a Ce—Ga composite oxide containing a solid solution in which a part of Ce is substituted with Ga. This oxidation catalyst is obtained in such a manner that pH of a mixed solution obtained by mixing a Ce-containing solution and a Ga-containing solution together is adjusted, and a precipitate obtained by coprecipitating Ce and Ga is dried and baked.

Abstract: Compositions, methods and systems involving nitrate compounds are disclosed and described. A method of dissolving a nitrate compound having an additive can comprise dissolving the nitrate compound to form an aqueous nitrate solution and adding a surfactant to the aqueous nitrate solution, where the surfactant disperses the additive.

Abstract: A composite having a substrate and a plurality of core-shell nanoparticles. The substrate has microporosity, nanoporosity, or free volume and is a polymer matrix, a metal-organic framework, a micro-porous structure, or a nano-porous structure. The plurality of core-shell nanoparticles each has a core and at least one shell layer. The core is made from a decomposed product of a first precursor disposed in the microporosity, nanoporosity, or free volume of the substrate. The at least one shell layer is made from a decomposed product of a second precursor and is disposed on the core.

Abstract: Shaped abrasive particles comprising alpha alumina and having a first side, a second side, a maximum length along a longitudinal axis and a maximum width transverse to the longitudinal axis. The first side comprising a quadrilateral having four edges and four vertices with the quadrilateral selected from the group consisting of a rhombus, a rhomboid, a kite, or a superellipse. The shaped abrasive particles having an aspect ratio of the maximum length divided by the maximum width of 1.3 or greater.

Abstract: Methods of forming a polycrystalline table may involve disposing a plurality of particles comprising a superabrasive material, a substrate comprising a hard material, and a catalyst material in a mold. The plurality of particles may be partially sintered in the presence of the catalyst material to form a brown polycrystalline table having a first permeability attached to an end of the substrate. The substrate may be removed from the brown polycrystalline table and catalyst material may be removed from the brown polycrystalline table. The brown polycrystalline table may then be fully sintered to form a polycrystalline table having a reduced, second permeability. Intermediate structures formed during a process of attaching a polycrystalline table to a substrate may include a substantially fully leached brown polycrystalline table. The substantially fully leached brown polycrystalline table may include a plurality of interbonded grains of a superabrasive material.

Abstract: An exhaust gas purifying catalyst includes: a support that contains at least one element that is selected from the first group that consists of Al, Zr and Ce, at least one element that is selected from the second group that consists of Ag, Mn, Co, Cu and Fe, and Ti; and particles that are composed of a metal or oxide of at least one element that is selected from the third group that consists of Ag, Mn, Co, Cu and Fe and that are deposited on the support. Seventy percent or more of any plurality of measurement points with a diameter of 2 nm on a surface of the support are composed of a composite part that has the at least one element selected from the second group content of 0.5 to 10 mol % and has a Ti content of 0.3 mol % or greater.