Patent application number | Description | Published |
20110124933 | CATALYST FOR THE DEHYDROAROMATISATION OF METHANE AND MIXTURES CONTAINING METHANE - The present invention relates to a catalyst for dehydroaromatizing C | 05-26-2011 |
20110303550 | PROCESS FOR CONVERTING NATURAL GAS TO AROMATICS WITH ELECTROCHEMICAL REMOVAL OF HYDROGEN TO GENERATE ELECTRICAL POWER AND OBTAIN HYDROGEN - The present invention relates to a process for converting aliphatic hydrocarbons having 1 to 4 carbon atoms to aromatic hydrocarbons, comprising the steps of:
| 12-15-2011 |
20120004482 | METHOD FOR REACTING NATURAL GAS TO AROMATICS WHILE ELECTROCHEMICALLY REMOVING HYDROGEN AND ELECTROCHEMICALLY REACTING THE HYDROGEN WATER - The invention relates to a process for converting aliphatic hydrocarbons having from 1 to 4 carbon atoms into aromatic hydrocarbons, which comprises the steps:
| 01-05-2012 |
20120012467 | PROCESS FOR CONVERTING NATURAL GAS TO AROMATICS WITH ELECTROCHEMICAL REMOVAL OF HYDROGEN - The present invention relates to a process for converting aliphatic hydrocarbons having 1 to 4 carbon atoms to aromatic hydrocarbons in the presence of a catalyst under nonoxidative conditions, wherein at least some of the hydrogen formed in the conversion electrochemically removed is by means of a gas-tight membrane-electrode assembly. | 01-19-2012 |
20120012471 | METHOD FOR ELECTROCHEMICALLY REMOVING HYDROGEN FROM A REACTION MIXTURE - The invention relates to a process for the electrochemical separation of hydrogen from a hydrogen-comprising reaction mixture R by means of a gastight membrane-electrode assembly comprising at least one selectively proton-conducting membrane and at least one electrode catalyst on each side of the membrane, where at least part of the hydrogen present in the reaction mixture R is oxidized to protons over the anode catalyst on the retentate side of the membrane and the protons are, after passing through the membrane to the permeate side, | 01-19-2012 |
20120022310 | PROCESS FOR PREPARING AROMATICS FROM METHANE - The present invention relates to a process for carrying out endothermic, heterogeneously catalyzed reactions in which the reaction of the starting materials is carried out in the presence of a mixture of inert heat transfer particles and catalyst particles, where the catalyst particles are regenerated in a nonoxidative atmosphere at regular intervals and the heat of reaction required is introduced by separating off the inert heat transfer particles, heating the heat transfer particles in a heating zone and recirculating the heated heat transfer particles to the reaction zone. The process of the invention is particularly suitable for the nonoxidative dehydroaromatization of C | 01-26-2012 |
20120071692 | PROCESS FOR THE PREPARATION OF AROMATIC AMINES - A process for preparing an aromatic amine by reacting a corresponding aromatic alcohol with an aminating agent selected from the group consisting of ammonia, primary amines and secondary amines, in the presence of hydrogen and a catalyst molding, at a temperature of from 60-300°. The catalyst molding comprises Zr, Pd and Pt and has an annular tablet form with an external diameter in the range from 2-6 mm, a height in the range from 1-4 mm and an internal diameter of from 1-5 mm or a topologically equivalent form with the same volume. Catalyst moldings comprising Zr, Pd and Pt are also provided. The catalyst molding has an annular tablet form with an external diameter in the range from 3-6 mm, a height in the range from 1-4 mm and an internal diameter of from 2-5 mm or a topologically equivalent form. | 03-22-2012 |
20120101303 | METHYL-SUBSTITUTED TETA COMPOUNDS - The invention relates to a process for preparing triethylenetetramine substituted by at least one methyl group (Me-TETA or methyl-substituted TETA compounds). Me-TETA is prepared by hydrogenating biscyanomethylimidazolidine (BCMI) in the presence of a catalyst. The present invention further relates to methyl-substituted TETA compounds as such. The present invention further relates to the use of methyl-substituted TETA compounds as a reactant or intermediate in the production of, for example, coatings or adhesives. | 04-26-2012 |
20120165585 | PROCESS FOR PREPARING BENZENE FROM METHANE - The present invention relates to a process for nonoxidatively dehydroaromatizing a reactant stream comprising C | 06-28-2012 |
20120203045 | PROCESS FOR PRODUCING AN SI-BONDED FLUIDIZED-BED CATALYST - The invention relates to a process for producing a particulate, Si-bonded fluidized-bed catalyst having improved abrasion resistance, which comprises the steps
| 08-09-2012 |
20130053536 | PROCESS FOR PREPARING EDDN AND/OR EDMN AND A PROCESS FOR PREPARING DETA AND/OR TETA - A process for preparing EDDN and/or EDMN by
| 02-28-2013 |
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 |
20130053538 | PROCESS FOR PREPARING EDFA AND/OR EDMFA AND DETA AND/OR TETA - A process for reacting ethylenediamine (EDA) with formaldehyde to give ethylenediamine-formaldehyde adduct (EDFA) and/or ethylenediamine-monoformaldehyde adduct (EDMFA), which comprises performing the reaction of FA with EDA at a temperature in the range from 20 to 70° C. | 02-28-2013 |
20130053539 | PROCESS FOR PREPARING EDDN AND/OR EDMN AND PROCESS FOR PREPARING DETA AND/OR TETA - A process for preparing EDDN and/or EDMN by conversion of FA, HCN and EDA, the reaction being effected in the presence of water, wherein the reaction mixture from the conversion of EDA, HCN and FA is cooled after leaving the reactor. | 02-28-2013 |
20130053540 | PROCESS FOR PREPARING TETA - A process for preparing TETA and/or DETA by the action of EDDN and/or EDMN with hydrogen in the presence of a catalyst, wherein the catalyst used is a catalyst of the Raney type and the pressure in the course of hydrogenation is in the range from 170 to 240 bar. | 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 |
20130053597 | PROCESS FOR PREPARING EDDN, EDMN, TETA AND DETA - A process for preparing ethylenediaminediacetonitrile (EDDN) and/or ethylenediamine-monoacetonitrile (EDMN) by conversion of formaldehyde (FA), hydrogen cyanide (HCN) and ethylenediamine (EDA), which comprises using stabilizer-free HCN, or HCN which has been stabilized with an organic acid, in the process. | 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 |
20130079492 | PROCESS FOR PREPARING EDDN AND EDMN - A process for preparing EDDN and/or EDMN by conversion of FA, HCN and EDA, the reaction being effected in the presence of water, and, after the conversion, water being depleted from the reaction mixture in a distillation column, which comprises performing the distillation in the presence of an organic solvent which has a boiling point between water and EDDN and/or EDMN at the distillation pressure existing in the column or which forms a low-boiling azeotrope with water. | 03-28-2013 |
20130085286 | Unknown - A process for preparing amines of the formula (II) | 04-04-2013 |
20130090452 | PROCESS FOR PREPARING EDDN AND/OR EDMN BY CONVERSION OF FACH AND EDA - A process for reacting formaldehyde cyanohydrin (FACH) with ethylenediamine (EDA) 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. | 04-11-2013 |
20130090453 | Process for preparing TETA and DETA - A process for preparing TETA and/or DETA by hydrogenating EDDN and/or EDMN with hydrogen in the presence of a catalyst, which comprises preparing EDDN and/or EDMN from FA, HCN and EDA in the presence of toluene as a solvent and performing the hydrogenation in suspension mode in the presence of THF. | 04-11-2013 |
20130296159 | ZEOLITIC MATERIALS AND METHODS FOR THEIR PREPARATION USING ALKENYLTRIALKYLAMMONIUM COMPOUNDS - The present invention relates to a process for the preparation of a zeolitic material comprising the steps of:
| 11-07-2013 |
20140039227 | PROCESS FOR SCRUBBING DINITROTOLUENE - The invention relates to a process for scrubbing a crude mixture comprising dinitrotoluene, nitric acid, nitrogen oxides and sulfuric acid obtained in the nitration of toluene after the nitrating acid has been separated off, which comprises two scrubbing steps (SS-I) and (SS-II), wherein
| 02-06-2014 |