Abstract: A process for preparing a coated catalyst in which a finely divided mixture of a multielement oxide comprising the elements Mo and V and a molybdenum oxide or a molybdenum oxide former is applied to the surface of a support body as an active composition.

Abstract: The present invention relates to a particularly economic overall method for producing menthol, specifically for producing optically active, essentially enantiomerically and diastereomerically pure L-menthol and racemic menthol, starting from the starting material citral which is available inexpensively on an industrial scale. The method comprises the following steps a) catalytic hydrogenation of neral and/or geranial to give citronellal, b) cyclization of citronellal to isopulegol in the presence of an acidic catalyst, c) purification of isopulegol by crystallization and d) catalytic hydrogenation of isopulegol to give menthol.

Abstract: Process for preparing an alkenylphosphonic acid derivative by reacting a phosphonic acid derivative with an alkyne in the presence of a complex catalyst system and a base whose conjugate acid has a pKa in dimethyl sulfoxide (25° C., 1 bar) of at least 6.

Abstract: The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises the following steps: (A) contacting of the mixture comprising at least one first material and at least one second material with at least one surface-active substance, if appropriate in the presence of at least one dispersant, resulting in the surface-active substance becoming attached to the at least one first material, (B) if appropriate, addition of at least one dispersant to the mixture obtained in step (A) to give a dispersion having a suitable concentration, (C) treatment of the dispersion from step (A) or (B) with at least one hydrophobic magnetic particle so that the at least one first material to which the at least one surface-active substance is bound and the at least one magnetic particle become attached to one another, (D) separation of the addition product from step (C) from the mixture by application of

Abstract: Absorption medium for acid gases comprising an oligoamine (A) of the general formula (I) and a primary or secondary alkanolamine (B) of the general formula (II) in which the weight ratio of oligoamine (A) to the primary or secondary alkanolamine (B) is 0.2 to 4, and also the process for removing acid gases from a gas stream by contacting the gas stream at a pressure of 0.05 to 10 MPa abs with an aqueous solution brought to and maintained at a temperature of 20 to 80° C. of said absorption medium.

Abstract: The present invention provides organometallic latent catalyst compounds, which are suitable as catalysts in polyaddition or polycondensation reactions which are catalysed by a Lewis acid type catalyst, in particular for the crosslinking of a blocked or unblocked isocyanate or isothiocyanate component with a polyol or polythiolto form a polyurethane (PU).

Abstract: Process for preparing (meth)acrylates of C10-alcohol mixtures, by reacting (meth)acrylic acid with an isomer mixture of C10-alcohols composed of 2-propylheptanol as the main isomer and at least one of the C10-alcohols 2-propyl-4-methylhexanol, 2-propyl-5-methylhexanol, 2-isopropylheptanol, 2-isopropyl-4-methylhexanol, 2-isopropyl-5-methylhexanol and/or 2-propyl-4,4-dimethylpentanol, in the presence of at least one acidic catalyst and of at least one polymerization inhibitor and in the presence of a solvent which forms an azeotrope with water, the azeotrope is distilled off and condensed, and the condensate splits into an aqueous phase and an organic phase, wherein a) the esterification is performed in a reactor with a circulation evaporator and b) in the presence of a solvent, and c) the crude product is purified by subsequent purifying distillation.

Abstract: A process for preparing an amine by reacting a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group of ammonia and primary and secondary amines, in the presence of a supported copper-, nickel- and cobalt-containing catalyst, wherein the catalytically active material of the catalyst, before the reduction thereof with hydrogen, comprises oxygen compounds of aluminum, of copper, of nickel, of cobalt and of tin, and in the range from 0.2 to 5.0% by weight of oxygen compounds of yttrium, of lanthanum, of cerium and/or of hafnium, each calculated as Y2O3, La2O3, Ce2O3 and Hf2O3 respectively, and catalysts as defined above.

Abstract: The invention relates to a method for producing hollow bodies having freely displaceable particles enclosed in the hollow body, wherein a) a gel-forming liquid in which the particles are suspended is brought into a cross-linking bath, b) the gel cores that form are isolated, c) the cores are coated with a composition comprising sinterable material and a binder, and d) the coated cores are subjected to a heat treatment wherein the gel and the binder are expunged and the sinterable material is sintered into a closed shell. The gel forming material is, for example, sodium alginate, and the cross-linking bath comprises calcium ions. The particles are selected, for example, from ZrO2, Al2O3, TiO2, and SiO2 or mixtures thereof. The sinterable material is, for example, a metal powder such as carbonyl iron powder.

Abstract: Process for producing a shaped metallic body from a thermoplastic composition by injection molding or extrusion to form a shaped part, removal of the binder and sintering, wherein a thermoplastic composition composed of a metal powder and a polymer mixture B1) and B2) based on a polyoxymethylene homopolymer or copolymer B1) is used as binder and to remove the binder a) the shaped part is treated with a solvent which extracts the binder component B2) from the shaped part and in which the binder component B1) is insoluble, b) the solvent is then removed from the shaped part by drying and c) the shaped part is treated thermally at from 140 to 200° C. in an oxygen-comprising atmosphere, as a result of which the binder component B1) is removed from the shaped part; and also a shaped metallic body which can be obtained in this way.

Abstract: This invention relates to a process for producing superabsorbent foams comprising the steps of foaming an aqueous mixture comprising at least one monoethylenically unsaturated monomer bearing acid groups, at least one blowing agent, at least one crosslinker and at least one surfactant, polymerizing the foamed mixture and drying the polymerized mixture, to the foams and also to their use for absorbing aqueous fluids.

Abstract: The invention relates to a process for producing carbon fillers having covalently bonded amino groups, by converting a mixture comprising carbon fillers and alkali metals and/or alkaline earth metals and/or amides thereof in liquid anhydrous ammonia, optionally together with an inert solvent, at temperatures of 35 to 500° C. and a pressure of 30 to 250 bar.

Abstract: The present invention provides a polymer comprising a unit of formula and an electronic device comprising the polymer as semiconducting material.

Abstract: A composition comprising a source of metal ions and at least one additive comprising at least one polyaminoamide represented by formula (I) or derivatives of a polyaminoamide of formula (I) obtainable by complete or partial protonation, N-quarternisation or acylation.

Abstract: The invention relates to a method for producing and using a solid sodium diformate having a high formic acid content, to the use thereof in animal foods in the form of an acidifier, preservatives, ensilage auxiliary agents, fertilizers, and a growth and productivity-stimulating agent and the inventive animal food additives containing sodium diformate.

Abstract: The invention is directed to an antimicrobial metal composite formed by vaporizing an antimicrobial metal or antimicrobial metal salt such as silver, copper or salts thereof using an plasma system and cooling the formed vapor in the presence of a fluidized gas of filler powder. Alternatively, the filler or a filler precursor is entrained with the antimicrobial metal or antimicrobial metal precursor and vaporized and then upon cooling the antimicrobial metal vapor and filler vapor condense to form the composite. The composite shows high antimicrobial activity and can be incorporated into or onto polymers, coatings, textiles, paper, gels (for example for wound care), lubricants, adhesives and cosmetics or pharmaceutical, especially medical devices.

Abstract: The use of water-absorbing polymer particles for absorbing blood and/or menses, the water-absorbing polymer particles being obtainable by polymerizing a foamed monomer solution or suspension, drying the polymeric foam and grinding the dried foam.

Abstract: The present invention relates to thermoplastic molding materials comprising the following components: (A) at least one polyarylene ether, (B) at least one polyarylene sulfide, (C) optionally at least one functionalized polyarylene ether comprising carboxyl groups, (D) at least one fibrous or particulate filler and (E) optionally further additives and/or processing assistants, the ratio of the apparent viscosity of the component (A) to that of the component (B), determined at 350° C. and a shear rate of 1150 s?1, being from 2.5 to 3.7.

Abstract: A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry [BiaZ1bOx]p[BicMo12FedZ2eZ3fZ4gZ5hZ6iOy]1, in which a finely divided oxide BiaZ1bOx and, formed from element sources, a finely divided mixture of stoichiometry BicMo12FedZ2eZ3fZ4gZ5hZ6i are mixed in a ratio of p:1, this mixture is used to form shaped bodies and these are treated thermally, where 0<c?0.8.

Abstract: A process and an apparatus for obtaining pure water from seawater, comprising: a) a raw water is provided that comprises at least one non-volatile component (salt), b) the raw water provided is passed as cooling medium into a heat ex-changer, c) additional heat is supplied to the raw water that is heated in the heat exchanger, d) the raw water from step c) is fed to an evaporation zone, e) a carrier gas suitable for water vapour is provided (air), f) the carrier gas is brought into contact with the raw water in counter current flow in the evaporation zone which contains baffles, wherein the carrier gas takes up water vapour from the raw water, g) the raw water that is obtained in step f) that is enriched with the at least one non-volatile component is taken off from the evaporation zone, h) the water vapour- loaded carrier gas from the evaporation zone is fed to the heat exchanger and is cooled in counter current flow to the raw water, wherein the water vapour present in the carrier gas partially condenses ou