Abstract: A process for producing a silver-based epoxidation catalyst, comprising i) impregnating a particulate porous refractory support with a first aqueous silver impregnation solution comprising silver ions and an aminic complexing agent selected from amines, alkanolamines and amino acids; ii) converting at least part of the silver ions impregnated on the refractory support to metallic silver by heating while directing a stream of a first gas over the impregnated refractory support to obtain an intermediate catalyst, wherein the first gas comprises at least 5 vol.

Abstract: A molding comprising a mixed oxide, wherein the mixed oxide comprises oxygen, lanthanum, aluminum, and cobalt, wherein in the mixed oxide, the weight ratio of cobalt relative to aluminum, calculated as elements, is at least 0.17:1. A preparation method by a dry route. Use of the molding as a catalyst for the reforming of hydrocarbons into a synthesis gas.

Abstract: Process for the continuous preparation of an amine by reaction of a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary and secondary amines at a temperature in the range from 60 to 300° C. in the presence of a catalyst comprising copper oxide and aluminum oxide, wherein the reaction takes place in the gas phase and the catalytically active composition of the catalyst before reduction with hydrogen comprises from 20 to 75% by weight of aluminum oxide (Al2O3), from 20 to 75% by weight of oxygen-comprising compounds of copper, calculated as CuO, from 0 to 2% by weight of oxygen-comprising compounds of sodium, calculated as Na2O, and less than 5% by weight of oxygen-comprising compounds of nickel, calculated as NiO, and the shaped catalyst body has a pellet shape having a diameter in the range from 1 to 4 mm and a height in the range from 1 to 4 mm.

Abstract: The use of a supported noble metal catalyst obtainable by applying a sparingly soluble noble metal compound to a support from solution or suspension, and subsequently treating thermally, for preparing olefinically unsaturated carbonyl compounds.

Abstract: A process for isomerizing olefinically unsaturated alcohols over supported noble metal catalysts with a support based on carbon in an oxygenous atmosphere.

Abstract: A process for preparing olefinically unsaturated carbonyl compounds by oxidative dehydrogenation in an oxygenous atmosphere over a supported catalyst which comprises gold and optionally further noble metals at temperatures in the range from 50 to 240° C.

Abstract: A process for isomerizing olefinically unsaturated alcohols over supported noble metal catalysts with a support based on carbon in an oxygenous atmosphere.

Abstract: A process for isomerizing olefinically unsaturated alcohols over supported noble metal catalysts with a support based on carbon in an oxygenous atmosphere.

Abstract: Process for the continuous preparation of an amine by reaction of a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary and secondary amines at a temperature in the range from 60 to 300° C. in the presence of a catalyst comprising copper oxide and aluminum oxide, wherein the reaction takes place in the gas phase and the catalytically active composition of the catalyst before reduction with hydrogen comprises PS from 20 to 75% by weight of aluminum oxide (Al2O3), from 20 to 75% by weight of oxygen-comprising compounds of copper, calculated as CuO, from 0 to 2% by weight of oxygen-comprising compounds of sodium, calculated as Na2O, and less than 5% by weight of oxygen-comprising compounds of nickel, calculated as NiO, and the shaped catalyst body has a pellet shape having a diameter in the range from 1 to 4 mm and a height in the range from 1 to 4 mm.

Abstract: The use of a supported noble metal catalyst obtainable by applying a sparingly soluble noble metal compound to a support from solution or suspension, and subsequently treating thermally, for preparing olefinically unsaturated carbonyl compounds.

Abstract: A process for preparing olefinically unsaturated carbonyl compounds by oxidative dehydrogenation in an oxygenous atmosphere over a supported catalyst which comprises gold and optionally further noble metals at temperatures in the range from 50 to 240° C.

Abstract: A process for isomerizing olefinically unsaturated alcohols over supported noble metal catalysts with a support based on carbon in an oxygenous atmosphere.

Abstract: A method for dehydrogenating primary or secondary alcohols having 1 to 12 carbon atoms to give the corresponding aldehydes or ketones in which the alcohol is brought into contact with a catalytically active composition comprising an active component of the formula PdaBibYcZd, where Y is selected from the group consisting of Co, Rh, Pt, Ag, Au, and Z is selected from the group consisting of Na, Cs, Mg, Ca, Ba, V, Cr, W, Fe, Ni, Cu, Sb where the indices a, b, c and d give the mass ratios of the respective elements to one another, where a=0.1-3, b=0.1-3, c=0-3, d=0-1.

Abstract: Processes comprising: (a) enantioselectively hydrogenating a staffing material comprising a component selected from geraniol, nerol and mixtures thereof to form optically active citronellol; (b) converting the optically active citronellol to optically active citronellal; (c) cyclizing the optically active citronellal to form a mixture comprising optically active isopulegol; and (d) subjecting the mixture to further processing comprising: (i) separating the optically active isopulegol from the mixture and hydrogenating the separated optically active isopulegol to form optically active menthol; or (ii) hydrogenating the optically active isopulegol in the mixture to form optically active menthol and separating the optically active menthol from the mixture.

Abstract: A method for dehydrogenating primary or secondary alcohols having 1 to 12 carbon atoms to give the corresponding aldehydes or ketones in which the alcohol is brought into contact with a catalytically active composition comprising an active component of the formula PdaBibYcZd, where Y is selected from the group consisting of Co, Rh, Pt, Ag, Au, and Z is selected from the group consisting of Na, Cs, Mg, Ca, Ba, V, Cr, W, Fe, Ni, Cu, Sb where the indices a, b, c and d give the mass ratios of the respective elements to one another, where a=0.1-3, b=0.1-3, c=0-3, d=0-1.

Abstract: The present invention relates to a process for performing catalyzed oxidation reactions of hydrocarbons over a catalyst disposed in a reactor, which comprises cooling the product gas stream of the catalyzed oxidation reaction immediately after it leaves the reaction zone of the reactor by feeding in a temperature-controlled gas stream which is fed in through at least one feed device into the region between lower reactor plate and outlet of the product gas stream.

Abstract: A process for preparing 1-butene from 1-butane, which includes providing a n-butane-containing feed gas stream; introducing of the n-butane-containing feed gas stream into at least one dehydrogenation zone and nonoxidative catalytic dehydrogenation of n-butane; removing hydrogen, the low-boiling secondary constituents and optionally water vapor to give a C4 product gas stream containing 10-80% by volume of n-butane, 5-40% by volume of 1-butene, 10-50% by volume of 2-butene, 0-40% by volume of butadiene and 0-10% by volume of further gas constituents; introducing the C4 product gas stream containing 10-80% by volume of n-butane, 10-60% by volume of 1-butene, 15-60% by volume of 2-butene, 0-5% by volume of butadiene and 0-10% by volume of further gas constituents, into a selective hydrogenation zone and selective hydrogenation of butadiene to 1- and/or 2-butene to give stream consisting essentially of n-butane, 1-butene and 2-butene; and separating of the stream distillation into a desired product.

Abstract: A process for catalytically hydrogenating methylolalkanals of the general formula in which R1 and R2 are each independently a further methylol group or an alkyl group having from 1 to 22 carbon atoms or an aryl or aralkyl group having from 6 to 33 carbon atoms, in the liquid phase over a hydrogenation catalyst, which comprises setting a pH of from 7.0 to 9.0 in the hydrogenation effluent by adding at least one tertiary amine, an inorganic base or an inorganic or organic acid to the hydrogenation feed.

Abstract: The present invention relates to a catalytically active composition comprising as active component Pd and Bi and at least one element selected from the group (a) consisting of Rh, Au, Sb, V, Cr, W, Mn, Fe, Co, Ni, Na, Cs and Ba, or Pd, Rh and Bi and optionally an element selected from the group (a?) consisting of Au, Sb, V, Cr, W, Mn, Fe, Co, Ni, Pt, Cu, Ag, Na, Cs, Mg, Ca and Ba. The present invention further provides a process for dehydrogenating hydrocarbons, preferably oxo-functionalized hydrocarbons such as cyclopentanone, cyclohexanone and isovaleraldehyde, using the catalytically active composition.

Abstract: The disclosure involves a process for preparing butadiene from n-butane. In the process, n-butane is first dehydrogenated autothermally under nonoxidative conditions to form a gas stream. The gas stream is then oxidatively dehydrogenated to form a second gas stream. From the second gas stream, a third gas stream containing n-butane, 2-butene and butadiene is obtained. From the third gas stream, a butadiene/butaine product stream is obtained and remaining n-butane and 2-butene is recycled into the first dehydrogenation zone.