Patent application number | Description | Published |
20080200727 | Method for Producing an Amine - Processes for preparing amines comprising reacting an aldehyde and/or ketone with hydrogen and a nitrogen compound in the presence of a heterogeneous catalyst, wherein the heterogeneous catalyst comprises a catalyst packing prepared by applying at least one compound selected from the group consisting of catalytically active metals, compounds of catalytically active metals, and mixtures thereof to a support material selected from the group consisting of woven fabrics, knitted fabrics, foils, and combinations thereof. | 08-21-2008 |
20080255351 | Method for Preparing Aminodiglycol (Adg) and Morpholine - Processes comprising: providing a starting material comprising diethylene glycol; and reacting the starting material with ammonia in the presence of a heterogeneous transition metal catalyst to form a reaction product comprising aminodiglycol and morpholine; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of copper, nickel, cobalt and at least one of aluminum and zirconium; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extradate has a diameter of <3 mm, the pellet has a height of <3 mm, and the other geometries have an equivalent diameter L=1/a′ of <0.70 mm, where a′ is the external surface area per unit volume (mm | 10-16-2008 |
20080255360 | Process for Producing Ethyleneamines - Processes comprising: providing a starting material comprising monoethanolamine; and reacting the starting material with ammonia in the presence of a heterogeneous transition metal catalyst to form a reaction product comprising one or more ethylene amines; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of aluminum, copper, nickel and cobalt; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extrudate has a diameter of <3 mm, the pellet has a height of <3 mm, and the other geometries have an equivalent diameter L=1/a′ of <0.70 mm, where a′ is the external surface area per unit volume (mm | 10-16-2008 |
20090005464 | Method for Producing Olefins from Synthesis Gas in a Reaction Column - Process for the synthesis of olefins from synthesis gas in the presence of at least one Fischer-Tropsch catalyst in a reaction column, wherein the synthesis gas is introduced into the reaction column below a zone A of the reaction column and the olefins formed are taken off below the inlet for the synthesis gas. | 01-01-2009 |
20090030237 | METHOD FOR PRODUCING ETHYLENE AMINES AND ETHANOL AMINES BY THE HYDROGENATING AMINATION OF MONOETHYLENE GLYCOL AND AMMONIA IN THE PRESENCE OF A CATALYST - A process for preparing ethylene amines and ethanolamines by hydrogenative amination of monoethylene glycol and ammonia in the presence of a catalyst, wherein a catalyst having an active composition comprising ruthenium and cobalt and no further additional metal of group VIII and also no metal of group IB is used in the form of shaped catalyst bodies which in the case of a spherical shape or rod shape in each case have a diameter of <3 mm, in the case of a pellet shape have a height of <3 mm and in the case of all other geometries in each case have an equivalent diameter L=1/a′ of <0.70 mm, where a′ is the external surface area per unit volume (mm | 01-29-2009 |
20090065346 | PROCESS FOR THE DISTILLATIVE SEPARATION OF MIXTURES COMPRISING MONOETHYLENE GLYCOL AND DIETHYLENTRIAMINE - Processes comprising: providing a mixture comprising monoethylene glycol and diethylenetriamine; and subjecting the mixture to extractive distillation with a diethylenetriamine-selective solvent comprising triethylene glycol to provide a first stream comprising monoethylene glycol and a second stream comprising diethylenetriamine; wherein the first stream is substantially free of diethylenetriamine, and wherein the second stream is substantially free of monoethylene glycol. | 03-12-2009 |
20090082562 | PROCESS FOR PREPARING AN AMINE - A process for preparing an amine by reacting an aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group of primary and secondary amines in the presence of a heterogeneous catalyst, wherein the catalyst is a coated catalyst which comprises at least one metal of group VIII of the Periodic Table of the Elements as a hydrogenating metal and additionally a promoter on an oxidic support, at least 80% of the metal of group VIII of the Periodic Table of the Elements being present in a layer between the surface of the catalyst and a penetration depth which is not more than 80% of the radius of the catalyst, calculated from the surface of the catalyst. | 03-26-2009 |
20090240084 | METHOD FOR PRODUCING ETHYLENE AMINES ETHANOL AMINES FROM MONOETHYLENE GLYCOL (MEG) - A process for preparing ethylene amines and ethanolamines by hydrogenative amination of monoethylene glycol and ammonia in the presence of a catalyst, wherein the process is carried out in two process stages in which | 09-24-2009 |
20090264652 | METHOD FOR PRODUCING AN AMINE - Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, nickel and cobalt, and one or more oxygen compounds of silver in an amount of 0.5 to 6% by weight, calculated as AgO. | 10-22-2009 |
20090275781 | METHOD FOR PRODUCING AN AMINE - Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof, and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, nickel and cobalt, and one or more oxygen compounds of molybdenum in an amount of 5.5 to 12% by weight, calculated as MoO | 11-05-2009 |
20090286977 | METHOD FOR PRODUCING AN AMINE - Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, nickel and cobalt, and one or more oxygen compounds of one or more metals selected from the group consisting of Pb, Bi, Sn, Sb and In. | 11-19-2009 |
20090312579 | METHOD FOR PRODUCING AN AMINE - Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof, and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, and nickel, and one or more oxygen compounds of silver in an amount of 0.5 to 6% by weight, calculated as AgO. | 12-17-2009 |
20100010264 | METHOD FOR PRODUCING AN AMINE - Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, and nickel, and one or more oxygen compounds of one or more metals selected from the group consisting of Sb, Pb, Bi, and In. | 01-14-2010 |
20100019191 | METHOD FOR PRODUCING 1,2-ETHYLENE GLYCOL AND 1,2-PROPYLENE GLYCOL BY MEANS OF THE HETEROGENEOUSLY CATALYSED HYDROGENOLYSIS OF A POLYOL - A process for preparing 1,2-ethylene glycol and 1,2-propylene glycol by heterogeneously catalyzed hydrogenolysis of a polyol, which comprises using, as a heterogeneous catalyst, a catalyst comprising palladium (Pd) and a support material selected from the group of carbon, zirconium dioxide, titanium dioxide and calcium carbonate, the catalyst not comprising any ruthenium (Ru), and performing the hydrogenolysis in the presence of water. | 01-28-2010 |
20100081804 | PROCESS FOR CONTINUOUS HYDROGENATION OR HYDROGENATING AMINATION - A process is described for continuously hydrogenating unsaturated compounds, in which particles of a first hydrogenation catalyst are suspended in a liquid phase in which an unsaturated compound is dissolved, the liquid phase, in the presence of a hydrogenous gas at a first partial hydrogen pressure and at a first temperature, is conducted through a packed bubble column reactor in cocurrent counter to the direction of gravity, the effluent from the bubble column reactor is sent to a gas-liquid separation, the liquid phase is sent to a crossfiltration to obtain a retentate and a filtrate, the retentate is recycled into the bubble column reactor and the filtrate, in the presence of a hydrogenous gas at a second partial hydrogen pressure and at a second temperature, is passed over a bed of a second hydrogenation catalyst, wherein the second partial hydrogen pressure is at least 10 bar higher than the first partial hydrogen pressure. | 04-01-2010 |
20100227979 | PROCESS FOR HYDROGENATING POLYMERS AND HYDROGENATION CATALYSTS SUITABLE THEREFOR - A process for hydrogenating polymers which have C—C double bonds or C—N multiple bonds using a hydrogenation catalyst which comprises a megaporous substrate and a metal or precursor thereof which catalyzes the hydrogenation and has been deposited onto carbon nanofibers. | 09-09-2010 |
20100267948 | PROCESS FOR THE PREPARATION OF AN AMINE - Process for preparing an amine by reacting an aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of primary and secondary amines in the presence of a heterogeneous catalyst, wherein the reaction is carried out using a suspended catalyst as heterogeneous catalyst and is carried out in the semibatch mode in which the nitrogen compound as one reactant is placed in the reaction vessel and the aldehyde and/or the ketone as the other reactant is added during the course of the reaction and the aldehyde and/or the ketone is added in portions or continuously to the reaction mixture during the course of the reaction as a function of the achieved conversion of the nitrogen compound until a conversion of the nitrogen compound of at least 95% results, and all or part of the catalyst remains in the reaction vessel after the reaction batch and is reused for the next reaction batch. | 10-21-2010 |
20120035049 | PROCESSES FOR PREPARING AMINES AND ZIRCONIUM DIOXIDE- AND NICKELCONTAINING CATALYSTS FOR USE THEREIN - A catalytically active composition comprising, prior to reduction with hydrogen: 10 to 75% by weight of an oxygen compound of zirconium, calculated as ZrO | 02-09-2012 |
20120232267 | PROCESS FOR CONTINUOUS HYDROGENATION OR HYDROGENATING AMINATION - A process continuously hydrogenating unsaturated compounds, in which particles of a first hydrogenation catalyst are suspended in a liquid phase in which an unsaturated compound is dissolved, the liquid phase, in the presence of a hydrogenous gas at a first partial hydrogen pressure and at a first temperature, is conducted through a packed bubble column reactor in cocurrent counter to the direction of gravity, the effluent from the bubble column reactor is sent to a gas-liquid separation, the liquid phase is sent to a crossfiltration to obtain a retentate and a filtrate, the retentate is recycled into the bubble column reactor and the filtrate, in the presence of a hydrogenous gas at a second partial hydrogen pressure and at a second temperature, is passed over a bed of a second hydrogenation catalyst, the second partial hydrogen pressure is at least 10 bar higher than the first partial hydrogen pressure. | 09-13-2012 |