Patent application number | Description | Published |
20080221359 | Method for Producing Ethylene Amines - Processes comprising: providing a starting material comprising ethylenediamine; and reacting the starting material in the presence of a heterogeneous transition metal catalyst to form 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 | 09-11-2008 |
20100094057 | METHOD FOR PRODUCING ETHYLENEDIAMINE - The invention relates to a process for preparing ethylenediamine by hydrogenation of aminoacetonitrile over a catalyst, wherein the hydrogenation is carried out in a solution comprising aminoacetonitrile, water in a proportion of from 0 to 60% by weight and a solvent and the aminoacetonitrile comprised in the solution is fed into the reaction vessel at a rate which is not greater than the rate at which the aminoacetonitrile reacts with hydrogen in the hydrogenation. | 04-15-2010 |
20100210877 | CONTINUOUS METHODS AND REACATOR USED FOR THE PRODUCTION OF ALKYLAMINES - In the continuous process for preparing alkylamines by reacting C | 08-19-2010 |
20100274008 | METHOD FOR THE PRODUCTION OF AN AMINE - Processes for preparing an amine, the processes comprising: reacting a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones, and mixtures thereof, 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 zirconium dioxide-, copper- and nickel-containing catalyst; wherein the catalyst comprises a catalytically active composition which comprises, before reduction with hydrogen, oxygen compounds of zirconium, copper, and nickel, and 1.0 to 5.0% by weight of an oxygen compound of cobalt, calculated as CoO, and 0.2 to 5.0% by weight of a polyoxometalate. | 10-28-2010 |
20100274011 | METHOD FOR THE PRODUCTION OF AN AMINE - Processes for preparing an amine, the processes comprising: reacting a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones, and mixtures thereof, 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 zirconium dioxide-, copper- and nickel-containing catalyst; wherein the catalyst comprises a catalytically active composition which comprises, before reduction with hydrogen, oxygen compounds of zirconium, copper, and nickel, 1.5 to 4.5% by weight of an oxygen compound of cobalt, calculated as CoO, and 0.2 to 5.0% by weight of at least one oxygen compound of niobium, sulfur, phosphorus, gallium, boron, lead or antimony, calculated in each case as Nb | 10-28-2010 |
20110060166 | METHOD FOR PRODUCING N,N-SUBSTITUTED-1,3-PROPANDIAMINES - The present invention relates to a process for preparing N,N-substituted 1,3-propanediamine by
| 03-10-2011 |
20110137029 | CATALYST AND PROCESS FOR PREPARING AN AMINE - 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 Y | 06-09-2011 |
20110172430 | METHOD FOR THE CONTINUOUS PRODUCTION OF AN AMINE USING AN ALUMINUM-COPPER CATALYST - 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 (Al | 07-14-2011 |
20110218270 | USE OF LINEAR TRIETHYLENTETRAMINE AS CURING AGENT FOR EPOXY RESINS - The present invention relates to an amine composition comprising linear triethylene-tetramine and one or more amine compounds selected from the group consisting of tertiary amines derived from the condensation of ethylenediamine and methyl-substituted compounds derived from linear triethylenetetramine as well as a method of production for said composition. | 09-08-2011 |
20120245390 | PROCESS FOR HYDROGENATING NITRILES - The present invention relates to a process for hydrogenating nitriles by means of hydrogen in the presence of a catalyst in a reactor, where the catalyst is arranged in a fixed bed, wherein the cross-sectional loading in the reactor is in the range from 5 kg/(m | 09-27-2012 |
20130053537 | PROCESS FOR REGENERATING RANEY CATALYSTS - A process for regenerating Raney catalysts by treating the catalyst with liquid ammonia with a water content of less than 5% by weight and with hydrogen having a partial pressure of 0.1 to 40 MPa in the temperature range from 50 to 350° C. for at least 0.1 hour. | 02-28-2013 |
20130053584 | PROCESS FOR PREPARING EDDN AND/OR EDMN BY REACTING EDFA AND/OR EDMFA WITH HCN - A process for reacting ethylenediamine-formaldehyde adduct (EDFA) and/or ethylene-diamine-monoformaldehyde adduct (EDMFA) with hydrogen cyanide (HCN) in a reactor with limited backmixing at a temperature in the range from 20 to 120° C., wherein the residence time in the reactor is 300 seconds or less. | 02-28-2013 |
20130060002 | PROCESS FOR WORKING UP REACTION OUTPUTS FROM THE HYDROGENATION OF EDDN OR EDMN - A process is disclosed for separating the output from the reaction of EDDN or EDMN with hydrogen in the presence of THF, a catalyst, TETA or DETA, water, and optionally organic compounds having higher and lower boiling points than TETA or DETA. Hydrogen is removed, and the output is supplied to a distillation column DK1 in which an azeotrope, optionally comprising organic compounds with a boiling point lower than TETA or DETA, is removed from the top. A product comprising TETA or DETA is removed from the bottom and passed cinto a distillation column DK2, removing THF. A stream comprising TETA or DETA passes from the bottom of DK2. The DK1 azeotrope is condensed. Phase separation is induced by the addition of an organic solvent essentially immiscible with water, and the mixture is separated. The organic phase is recycled into DK1 and the water phase is discharged. | 03-07-2013 |
20130324731 | PROCESS FOR THE PREPARATION OF A MONO-N-ALKYLPIPERAZINE - Process for the preparation of a mono-N-alkylpiperazine of the formula I | 12-05-2013 |
20130331573 | Process for Preparing Piperazine - Process for preparing piperazine of the formula I | 12-12-2013 |
20130331574 | Process for Preparing Piperazine - Process for preparing piperazine of the formula I | 12-12-2013 |
Patent application number | Description | Published |
20080306299 | Method for the Production of Aminoalkane Acid Amides - The invention relates to a process for preparing aminoalkanamides by reacting cyanoalkanoic esters with a) ammonia or an amine and b) hydrogen in the presence of a catalyst, the reaction with component b) being started simultaneously or not later than a maximum of 100 minutes after commencement of the reaction of the cyanoalkanoic ester with component a). | 12-11-2008 |
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 |
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 |
20090088591 | CONTINUOUS PREPARATION OF ALKYLAMINES - In the continuous process for preparing alkylamines by reacting C | 04-02-2009 |
20090149314 | MIXED OXIDE CATALYSTS - Catalysts which are prepared by reducing catalyst precursors which comprise a) cobalt and b) one or more elements of the alkali metal group, of the alkaline earth metal group, of the group consisting of the rare earths or zinc or mixtures thereof, the elements a) and b) being present at least partly in the form of their mixed oxides, and a process for the preparation of these catalysts and the use thereof for the hydrogenation of unsaturated organic compounds. Furthermore, a process for regenerating these catalysts by treatment of the catalyst with a liquid is described. | 06-11-2009 |
20090292144 | DIRECT AMINATION OF HYDROCARBONS - A process for aminating hydrocarbons with ammonia, which comprises performing the amination in the presence of an additive which reacts with hydrogen, the additive used being at least one organic chemical compound, N | 11-26-2009 |
20110251433 | PROCESS FOR PREPARING UNSYMMETRIC SECONDARY TERT-BUTYLAMINES IN THE LIQUID PHASE - The present application relates to a process for preparing unsymmetric secondary tert-butylamines which, as well as the tert-butyl radical, also comprise an alkyl, cycloalkyl or benzyl radical. They are prepared by reacting corresponding aldehydes with tert-butylamine and hydrogen in the presence of hydrogenation catalysts (reductive amination) in the liquid phase. | 10-13-2011 |
20110251434 | PROCESS FOR PREPARING UNSYMMETRIC SECONDARY TERT-BUTYLAMINES IN THE GAS PHASE - The present invention relates to a process for preparing unsymmetric secondary tert-butylamines by continuous amination in the gas phase, wherein tert-butylamine is converted over hydrogenation catalysts in the presence of an alcohol or aldehyde and hydrogen. | 10-13-2011 |
20110294977 | POLYALKYLENEPOLYAMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION - The invention relates to a process for the preparation of polyalkylenepolyamines by catalyzed alcohol amination, in which | 12-01-2011 |
20120232292 | PROCESS FOR THE PREPARATION OF PRIMARY AMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION - Process for the preparation of primary amines which have at least one functional group of the formula (—CH | 09-13-2012 |
20120232293 | PROCESS FOR PREPARING DI-, TRI- AND POLYAMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION - Process for preparing primary amines which have at least one functional group of the formula (—CH | 09-13-2012 |
20120232294 | PROCESS FOR PREPARING ALKANOLAMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION - Process for preparing alkanolamines which have a primary amino group (—NH | 09-13-2012 |
20120232309 | PROCESS FOR THE PREPARATION OF PRIMARY AMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION - Preparing a primary amine by alcohol amination of alcohol with ammonia and elimination of water includes reacting, in a homogeneously catalyzed reaction, a mixture of alcohol, ammonia, nonpolar solvent, and catalyst, in a liquid phase, to obtain a product mixture. The process then includes phase separating the product mixture into a polar product phase and a nonpolar product phase, and separating off the nonpolar product phase. At least some of the nonpolar phase returns to the homogenously catalyzed reaction. The process further includes separating off amination product from the polar product phase. At least some of the catalyst is in the nonpolar phase, and the catalyst accumulates in the nonpolar phase. | 09-13-2012 |
20130158294 | PROCESS FOR THE PREPARATION OF RACEMIC ALPHA-AMINO ACIDS - Process for the preparation of racemic α-amino acids or of glycine, wherein the corresponding α-hydroxycarboxylic acid, selected from hydroxyacetic acid, lactic acid, malic acid, α-hydroxyglutamic acid, isocitric acid, tartronic acid and tartaric acid, or at least one salt of the corresponding α-hydroxycarboxylic acid is reacted in the presence of at least one heterogeneous catalyst which comprises at least one transition metal, in the presence of hydrogen with at least one nitrogen compound (c), where the nitrogen compound (c) is selected from primary and secondary amines and ammonia. | 06-20-2013 |
20130178656 | PROCESS FOR PREPARING SECONDARY AMINES IN THE LIQUID PHASE - The present application relates to a process for preparing secondary amines by aminating excess primary or secondary alcohols with primary amines in the liquid phase in the presence of copper-comprising catalysts. | 07-11-2013 |
Patent application number | Description | Published |
20090234163 | Method for producing an ethylamine - Processes comprising: (a) providing a first reactant comprising a bioethanol; and (b) reacting the first reactant with a second reactant comprising a component selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of hydrogen and a catalytically effective amount of a heterogeneous hydrogenation/dehydrogenation catalyst to form an ethylamine; wherein the catalyst has been activated at a temperature of 100 to 500° C. for at least 25 minutes; wherein prior to activation the catalyst comprises: (i) 20 to 65% by weight of a support material comprising one or both of zirconium dioxide (ZrO | 09-17-2009 |
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 |
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 |