Patent application number | Description | Published |
20100331573 | PROCESS FOR PREPARING FORMIC ACID - Process for preparing formic acid by hydrogenation of carbon dioxide in the presence of a catalyst comprising an element of group 8, 9 or 10 of the Periodic Table, a tertiary amine and a polar solvent at a pressure of from 0.2 to 30 MPa abs and a temperature of from 20 to 200° C. to form two liquid phases, separation of the two liquid phases, wherein the liquid phase (B) enriched with the tertiary amine is recirculated to the hydrogenation reactor and the formic acid/amine adduct from the liquid phase (A) enriched with the formic acid/amine adduct and the polar solvent is thermally dissociated into free formic acid and free tertiary amine in a distillation unit and the tertiary amine liberated in the dissociation and the polar solvent are recirculated to the hydrogenation reactor. | 12-30-2010 |
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 |
20110319657 | Process for the Preparation of Formic Acid - Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which a liquid stream comprising formic acid and a tertiary amine (I) in a molar ratio of from 0.5 to 5 is produced by combining tertiary amine (I) and a formic acid source, from 10 to 100% by weight of the secondary components present therein are separated off and formic acid is removed by distillation in a distillation apparatus at a bottom temperature of from 100 to 300° C. and a pressure of from 30 to 3000 hPa abs from the liquid stream obtained, the bottom discharge from the distillation apparatus being separated into two liquid phases and the upper liquid phase being recycled to the formic acid source and the lower liquid phase being recycled for separating off the secondary components and/or to the distillation apparatus. | 12-29-2011 |
20110319658 | PROCESS FOR PREPARING FORMIC ACID BY REACTION OF CARBON DIOXIDE WITH HYDROGEN - A process for preparing formic acid by reaction of carbon dioxide ( | 12-29-2011 |
20120022290 | Process for Preparing Formic Acid by Reaction of Carbon Dioxide with Hydrogen - A process for preparing formic acid by reaction of carbon dioxide ( | 01-26-2012 |
20120071690 | PRODUCTION OF FORMAMIDES - A process is proposed for production of formamides by reaction of carbon dioxide with hydrogen in a hydrogenation reactor I in the presence of
| 03-22-2012 |
20120157711 | PROCESS FOR PREPARING FORMIC ACID BY REACTING CARBON DIOXIDE WITH HYDROGEN - The present invention relates to a process for preparing formic acid by reacting carbon dioxide ( | 06-21-2012 |
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 |
20130012739 | PROCESS FOR PREPARING FORMIC ACID BY REACTING CARBON DIOXIDE WITH HYDROGEN - A process for preparing formic acid by reacting carbon dioxide with hydrogen in a hydrogenation reactor in the presence of a catalyst comprising an element of group 8, 9 or 10 of the Periodic Table, a tertiary amine and a polar solvent to form formic acid-amine adducts which are subsequently dissociated thermally into formic acid and tertiary amine. | 01-10-2013 |
20130090496 | PROCESS FOR PREPARING FORMIC ACID BY REACTING CARBON DIOXIDE WITH HYDROGEN - The invention relates to a process for preparing formic acid by reacting carbon dioxide with hydrogen in a hydrogenation reactor in the presence of a catalyst comprising an element of group 8, 9 or 10 of the Periodic Table, a tertiary amine and a polar solvent to form formic acid-amine adducts which are subsequently dissociated thermally into formic acid and tertiary amine. | 04-11-2013 |
20130102807 | PROCESS FOR PREPARING FORMAMIDES AND FORMIC ESTERS - A process for preparing carboxylic acid derivatives of the formula H—(C═O)—R, R is OR | 04-25-2013 |
20130137901 | SYNTHESIS OF POLYALKYLENEPOLYAMINES HAVING A LOW COLOR INDEX BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION IN THE PRESENCE OF HYDROGEN - Process for the preparation of polyalkylenepolyamines by homogeneously catalyzed alcohol amination, in which aliphatic amino alcohols are reacted with one another or aliphatic diamines or polyamines are reacted with aliphatic diols or polyols with the elimination of water in the presence of a homogeneous catalyst and in the presence of hydrogen gas. Polyalkylenepolyamines obtainable by such processes and polyalkylenepolyamines comprising hydroxy groups, secondary amines or tertiary amines. Uses of such polyalkylenepolyamines as adhesion promoters for printing inks, adhesion promoters in composite films, cohesion promoters for adhesives, crosslinkers/curing agents for resins, primers for paints, wet-adhesion promoters for emulsion paints, complexing agents and flocculating agents, penetration assistants in wood preservation, corrosion inhibitors, immobilizing agents for proteins and enzymes. | 05-30-2013 |
20130190532 | PROCESS FOR PREPARING FORMIC ACID - Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which a liquid stream comprising formic acid, tertiary amine (I) and water is produced by combining tertiary amine (I) and a formic acid source in the presence of water, water and organic decomposition products of the tertiary amine (I) are removed and formic acid is removed by distillation from the resulting liquid stream in a distillation apparatus, wherein the stream comprising water and organic decomposition products of the tertiary amine (I) which have been separated off is separated into two liquid phases, the upper liquid phase is removed and the lower, water-comprising liquid phase is recirculated to the formic acid source. | 07-25-2013 |
20130281696 | PROCESS FOR PREPARING BRANCHED ALCOHOLS - Process for preparing branched alcohols of the general formula (I) | 10-24-2013 |
20130324770 | METHOD FOR WORKING UP MIXTURES - Method for working up a mixture comprising at least one alcohol of the general formula (I) | 12-05-2013 |
20130331607 | PROCESS FOR PREPARING FORMIC ACID - A process for preparing formic acid by hydrogenation of carbon dioxide in the presence of a tertiary amine (I), a diamine (II), a polar solvent and a catalyst comprising gold at a pressure of from 0.2 to 30 MPa abs and a temperature of from 0 to 200° C., wherein the catalyst is a heterogeneous catalyst comprising gold. | 12-12-2013 |
20140024833 | PROCESS FOR THE HOMOGENEOUSLY CATALYZED AMINATION OF ALCOHOLS WITH AMMONIA IN THE PRESENCE OF A COMPLEX CATALYST WHICH COMPRISES NO ANIONIC LIGANDS - The invention relates to a process for preparing primary amines by alcohol amination of alcohols with ammonia with the elimination of water, where the alcohol amination is carried out under homogeneous catalysis in the presence of at least one complex catalyst which comprises ruthenium and at least one at least bidental donor ligand, but no anionic ligands. | 01-23-2014 |
20140024854 | PROCESS FOR PREPARING CARBOXYLIC ACID ESTERS - The present invention relates to a process for preparing carboxylic acid esters, comprising the reaction of at least one primary monoalcohol or of a mixture of a primary monoalcohol and at least one alcohol different therefrom in the presence of a transition metal carbene complex catalyst K which has, as central atom M, at least one transition metal atom of group 8, 9 or 10 of the Periodic Table of the Elements (IUPAC) and at least one monodentate N-heterocyclic carbene ligand, in the presence of a base, wherein the catalyst K is prepared by reacting a transition metal compound V which has at least one transition metal atom of group 8, 9 or 10 of the Periodic Table of the Elements (IUPAC), but no carbene ligand, with an imidazolium salt in the presence of the primary monoalcohol and the base, the reaction being carried out without dilution. | 01-23-2014 |
20140073817 | METHOD FOR PREPARING MENTHONE FROM ISOPULEGOL - The present invention relates to a method for preparing menthone, starting from isopulegol, using specific homogeneous catalysts. | 03-13-2014 |
20140288265 | ALKOXYLATED POLYALKYLENEPOLYAMINES - Process for the preparation of alkoxylated polyalkylenepolyamines, comprising the following steps (a) homogeneously catalyzed alcohol amination, where aliphatic amino alcohols are reacted with one another or aliphatic diamines or polyamines are reacted with aliphatic diols or polyols with the elimination of water in the presence of a homogeneous catalyst to give polyalkylenepolyamines, (b) reaction of these polyalkylenepolyamines with alkylene oxides to give alkoxylated polyalkylenepolyamines. Specific alkoxylated polyalkylenepolyamines obtainable by such processes and alkoxylated polyalkylenepolyamines and processes for their preparation. Uses of alkoxylated polyalkylenepolyamines as detergent additives, dispersants, textile auxiliaries, wood protectants, corrosion inhibitors. | 09-25-2014 |
20140305339 | LIPOPHILIC POLYALKYLENEPOLYAMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION - Process for the preparation of lipophilic polyalkylenepolyamines by homogeneously catalyzed alcohol amination, where aliphatic amino alcohols are reacted with one another or aliphatic diamines or polyamines are reacted with aliphatic diols or polyols with the elimination of water in the presence of a homogeneous catalyst, at least one of the reactants comprising an alkyl or alkylene group having five or more carbon atoms, and after the reaction a phase separation into at least one apolar phase and at least one polar phase being present, the lipophilic polyalkylenepolyamines being present in enriched form in the apolar phase. Polyalkylenepolyamines obtainable by such processes, and polyalkylenepolyamines comprising hydroxyl groups, secondary amines or tertiary amines. Uses of such polyalkylenepolyamines as adhesion promoters for printing inks, adhesion promoters in composite films, cohesion promoters for adhesives, crosslinkers/curing agents for resins, primers in paints, wet-adhesion promoters for emulsion paints, complexing agents and flocculating agents, penetration assistants in wood preservation, corrosion inhibitors, immobilizing agents for proteins and enzymes. | 10-16-2014 |
20140309460 | INCREASING THE MOLAR MASS OF POLYALKYLENEPOLYAMINES BY HOMOGENEOUSLY CATALYZED ALCOHOL AMINATION - Process for increasing the molar mass of polyalkylenepolyamines by homogeneously catalyzed alcohol amination, which comprises carrying out a reaction of the polyalkylenepolyamines in a reactor with elimination of water in the presence of a homogeneous catalyst and removing the water of reaction from the reaction system. Polyalkylenepolyamines obtainable by such processes, and polyalkylenepolyamines comprising hydroxyl groups, secondary amines or tertiary amines. Uses of such polyalkylenepolyamines as adhesion promoters for printing inks, adhesion promoters in composite films, cohesion promoters for adhesives, crosslinkers/curing agents for resins, primers for paints, wet-adhesion promoters for emulsion paints, complexing agents and flocculating agents, penetration assistants in wood preservation, corrosion inhibitors, immobilizing agents for proteins and enzymes. | 10-16-2014 |
20140323770 | PROCESS FOR PREPARING 3-SUBSTITUTED 2-ALKENALS, IN PARTICULAR PRENAL - The present invention to a process for preparing 2-alkenals of the formula I | 10-30-2014 |