Abstract: The present invention relates to a process for the separation of at least one metal from a slag, comprising that at least one metal and further components, comprising at least step (A) grinding the slag, (B) if appropriate, contacting the ground slag of step (A) with at least one surface-active substance and/or at least one magnetic particle, if appropriate in the presence of at least one dispersant, resulting in formation of agglomerates of the at least one metal and the at least one magnetic particle, (C) if appropriate, addition of at least one dispersant to the mixture obtained in step (B) to give a dispersion having a suitable concentration, and (D) separation of the agglomerates from the mixture of step (B) or (C) by application of a magnetic field, and to the use of at least one magnetic particle for the separation of slag.

Abstract: A catalyst on an oxidic support and processes for selectively hydrogenating unsaturated compounds in hydrocarbon streams comprising them using these catalysts are described.

Abstract: A process for hydrogenating an organic compound which has at least one carbonyl group, in which the organic compound is hydrogenated in the presence of a shaped article which contains (i) an oxidic material comprising copper oxide, aluminum oxide and lanthanum oxide, and (ii) powdered metallic copper, copper flakes, powdered cement, graphite or a mixture thereof, is provided.

Abstract: Process for the oxychlorination of ethylene to form 1,2-dichloroethane in the gas recycle mode with reduced accumulation of hydrogen, which comprises the following steps: (A) introduction of ethylene, oxygen and hydrogen chloride as starting materials into an oxychlorination reactor, with the hydrogen chloride comprising hydrogen, (B) reaction of the starting materials over a catalyst comprising from 3.5 to 12.5% by weight of copper as copper salt from 0.1 to 1.0% by weight of magnesium as magnesium salt from 0.1 to 2.0% by weight of potassium as potassium salt on a support material to form 1,2-dichloroethane and water with at least partial conversion of the hydrogen present into water, (C) work-up of the reactor output and recirculation of the recycle gas to the oxychlorination reactor.

Abstract: The invention relates to a method for hydrogenation of an organic compound comprising at least one carbonyl group, whereby the organic compound is brought into contact with a moulded body in the presence of hydrogen. Said body may be produced by a method in which (i) an oxidic material is prepared, comprising copper oxide, aluminum oxide, and at least one oxide of lanthanum, tungsten, molybdenum, titanium, or zirconium, followed by (ii) addition of powdered metallic copper, copper platelets, powdered cement, graphite, mixtures or a mixture thereof with graphite to the oxidic material and (iii) moulding the mixture from (ii) to give a moulded body, characterised in that the moulded body is in the form of catalyst tablets or catalyst extrudates with a diameter d and/or height h<2.5 mm, catalyst beads with a diameter d<2.5 mm or catalyst honeycomb with a cell diameter rz<2.5 mm.

Abstract: A process for hydrogenating an organic compound which has at least one carbonyl group, in which the organic compound is hydrogenated in the presence of a shaped article which contains (i) an oxidic material comprising copper oxide, aluminum oxide and lanthanum oxide, and (ii) powdered metallic copper, copper flakes, powdered cement, graphite or a mixture thereof, is provided.

Abstract: A process for hydrogenating an organic compound which has at least one carbonyl group, in which the organic compound is brought into contact in the presence of hydrogen with a shaped article which can be produced in a process in which (i) an oxidic material comprising copper oxide, aluminum oxide and at least one of the oxides of lanthanum, tungsten, molybdenum, titanium or zirconium is prepared, (ii) powdered metallic copper, copper flakes, powdered cement, graphite or a mixture thereof is added to the oxidic material, and (iii) the mixture resulting from (ii) is shaped to a shaped article.

Abstract: A process for hydrogenating an organic compound which has at least one carbonyl group, in which the organic compound is brought into contact in the presence of hydrogen with a shaped article which can be produced in a process in which (i) an oxidic material comprising copper oxide, aluminum oxide and at least one of the oxides of lanthanum, tungsten, molybdenum, titanium or zirconium is prepared, (ii) powdered metallic copper, copper flakes, powdered cement, graphite or a mixture thereof is added to the oxidic material, and (iii) the mixture resulting from (ii) is shaped to a shaped article.

Abstract: A catalyst on an oxidic support and processes for selectively hydrogenating unsaturated compounds in hydrocarbon streams comprising them using these catalysts are described.

Abstract: The invention relates to a method for hydrogenation of an organic compound comprising at least one carbonyl group, whereby the organic compound is brought into contact with a moulded body in the presence of hydrogen. Said body may be produced by a method in which (i) an oxidic material is prepared, comprising copper oxide, aluminium oxide, and at least one oxide of lanthanum, tungsten, molybdenum, titanium, or zirconium, followed by (ii) addition of powdered metallic copper, copper platelets, powdered cement, graphite, mixtures or a mixture thereof with graphite to the oxidic material and (iii) moulding the mixture from (ii) to give a moulded body, characterised in that the moulded body is in the form of catalyst tablets or catalyst extrudates with a diameter d and/or height h<2.5 mm, catalyst beads with a diameter d<2.5 mm or catalyst honeycomb with a cell diameter rz<2.5 mm.

Abstract: A process for variably preparing mixtures of optionally alkyl-substituted BDO, GBL and THF by two-stage hydrogenation in the gas phase of C4 dicarboxylic acids and/or derivatives thereof, which comprises a) hydrogenating in a gas phase a gas stream of C4 dicarboxylic acids and/or derivatives thereof over a particular catalyst at a particular pressure and temperature to give a stream mainly containing of optionally alkyl-substituted GBL and THF, b) removing any succinct anhydride, c) converting the products remaining predominantly in the gas phase in the partial condensation, THF, water and GBL to give a stream comprising a mixture of BDO, GBL and THF, d) removing the hydrogen from the products and recycling it into the hydrogenation, e) distillatively separating the products, THF, BDO, GBL and water, if appropriate recycling a GBL-rich stream or if appropriate discharging it, and working up BDO, THF and GBL distillatively, and setting the ratio of the products, THF, GBL and BDO, relative to one another wi

Abstract: Carbon monoxide is removed from flows of material by means of adsorption to a adsorption mass containing copper, zinc, and zirconium.

Abstract: Process for hydrogenating an organic compound having at least one carbonyl group, in which the organic compound is contacted, in the presence of hydrogen, with a shaped body which is producible in a process in which (i) an oxidic material comprising copper oxide and aluminum oxide and at least one of the oxides of iron, lanthanum, tungsten, molybdenum, titanium, zirconium, tin or manganese, and if appropriate additionally tin oxide and/or manganese oxide, is provided, (ii) pulverulent metallic copper, copper flakes, pulverulent cement, graphite or a mixture thereof are added to the oxidic material, (iii) the mixture resulting from (ii) is shaped to a shaped body and (iv) the shaped body is treated with water or steam.

Abstract: A process for the hydrogenation of an organic compound containing at least one carbonyl group comprises bringing the organic compound in the presence of hydrogen into contact with a shaped body which can be produced by a process in which (i) an oxidic material comprising copper oxide, aluminum oxide and aluminum oxide is made available (ii) pulverulent metallic copper, copper flakes, pulverulent cement, graphite or a mixture thereof is added to the oxidic material, and (iii) the mixture resulting from (ii) is shaped to form a shaped body.

Abstract: In accordance with the present invention there is provided a new class of sterically demanding metallo-intercalators. These compounds intercalate between bases in a duplex polynucleotide, but only where the bases are not fully complementary, for example, where there is a base-pair mismatch. The compounds are sufficiently sterically demanding that intercalation between bases in fully complementary duplexes does not occur to a significant degree. These mismatch intercalators are useful for detecting DNA and RNA defects, for diagnosing disorders characterized by the presence or increase in DNA and/or RNA defects, and for treating such disorders. Further, the compounds are capable of catalyzing photolytic cleavage of nucleic acids at relatively long wavelengths, and under normal sunlight.

Abstract: A process for hydrogenating an organic compound which has at least one carbonyl group, in which the organic compound is brought into contact in the presence of hydrogen with a shaped article which can be produced in a process in which (i) an oxidic material comprising copper oxide, aluminum oxide and at least one of the oxides of lanthanum, tungsten, molybdenum, titanium or zirconium is prepared, (ii) powdered metallic copper, copper flakes, powdered cement, graphite or a mixture thereof is added to the oxidic material, and (iii) the mixture resulting from (ii) is shaped to a shaped article.

Abstract: The present invention provides a process for variably preparing mixtures of optionally alkyl-substituted BDO, GBL and THF by two-stage hydrogenation in the gas phase of C4 dicarboxylic acids and/or derivatives thereof, which comprises a) in a first step in the gas phase, hydrogenating a gas stream of C4 dicarboxylic acids and/or derivatives thereof over a catalyst at a pressure of from 2 to 100 bar and a temperature of from 200° C. to 300° C.

Abstract: The present invention relates to a process for the preparation of hydrogen peroxide from oxygen or oxygen-delivering substances and hydrogen or hydrogen-delivering substances in the presence of at least one catalyst containing a metal-organic framework material, wherein said framework material comprises pores and a metal ion and an at least bidentate organic compound, said bidentate organic compound being coordinately bound to the metal ion. The invention further relates to a novel material consisting of said metal organic framework material wherein the material is brought in contact with at least one additional metal.

Abstract: The present invention relates to an integrated process for the synthesis of propylene oxide, which comprises at least the following steps: (i) dehydrogenation of propane to give a substream T(0) comprising at least propane, propene and hydrogen; (ii) fractionation of the substream T(0) to give at least one gaseous hydrogen-rich substream T(2) and a substream T(1) comprising at least propene and propane; (iii) synthesis of hydrogen peroxide using the substream T(2), giving a substream T (4) which is rich in hydrogen peroxide and a gaseous substream T(6); (iv) fractionation of the substream T(1) to give at least one propane-rich substream T(5) and at least one propene-rich substream T(3); (v) reaction of the at least one substream T(3) with substream T(4) to give propylene oxide.

Abstract: A process for hydrogenating an organic compound which has at least one carbonyl group, in which the organic compound is brought into contact in the presence of hydrogen with a shaped article which can be produced in a process in which (i) an oxidic material comprising copper oxide, aluminum oxide and at least one of the oxides of lanthanum, tungsten, molybdenum, titanium or zirconium is prepared, (ii) powdered metallic copper, copper flakes, powdered cement, graphite or a mixture thereof is added to the oxidic material, and (iii) the mixture resulting from (ii) is shaped to a shaped article.