Patent application number | Description | Published |
20080249307 | Method for Producing Ethylene Amines - Processes are described comprising: (i) providing a reactant comprising 1,2-dichloroethane; and (ii) reacting the reactant with ammonia to form a reaction product comprising one or more ethylene amines and hydrogen chloride, wherein the reaction is carried out in the presence of an organic, nitrogen- or phosphorus-containing compound which reacts with the hydrogen chloride to form an ionic liquid. | 10-09-2008 |
20080293973 | Process for the Synthesis of Dmapa - The present invention relates to a process for the industrial preparation of a diamine starting from a corresponding alkenyl nitrile comprising at least one C-C double bond, which comprises the steps
| 11-27-2008 |
20100015012 | METHOD FOR PRODUCING AROMATIC AMINES OR ALIPHATIC AMINO ALCOHOLS - The invention relates to a process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, in which a fluid reaction mixture which comprises amines and from which the catalysts are separated off is formed in a reactor. After the catalysts have been separated off, a measurement of the absorption of UV/VIS radiation by the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture. | 01-21-2010 |
20100105952 | PROCESS FOR THE SYNTHESIS OF DMAPA - The present invention relates to a process for the industrial preparation of a diamine starting from a corresponding alkenyl nitrile comprising at least one C—C double bond, which comprises the steps
| 04-29-2010 |
20100249467 | METHOD FOR PRODUCING OPTICALLY ACTIVE, RACEMIC MENTHOL - The present invention relates to a particularly economic overall method for producing menthol, specifically for producing optically active, essentially enantiomerically and diastereomerically pure L-menthol and racemic menthol, starting from the starting material citral which is available inexpensively on an industrial scale. The method comprises the following steps | 09-30-2010 |
20110087038 | PROCESS AND DEVICE FOR THE OXIDATION OF ORGANIC COMPOUNDS - The invention relates to a process for the oxidation of organic compounds by means of oxygen, in which, in a first step, the organic compound and at least part of the oxygen required for the oxidation are introduced into a first reaction zone which is operated isothermally and with backmixing and, in a second step, the reaction mixture from the first reaction zone is introduced into a second reaction zone which is operated adiabatically. The invention further relates to a reactor for carrying out the process, which comprises at least one isothermal reaction zone ( | 04-14-2011 |
20130046118 | METHOD FOR PRODUCING OPTICALLY ACTIVE, RACEMIC MENTHOL - The present invention relates to a particularly economic overall method for producing menthol, specifically for producing optically active, essentially enantiomerically and diastereomerically pure L-menthol and racemic menthol, starting from the starting material citral which is available inexpensively on an industrial scale. The method comprises the following steps
| 02-21-2013 |
Patent application number | Description | Published |
20100105952 | PROCESS FOR THE SYNTHESIS OF DMAPA - The present invention relates to a process for the industrial preparation of a diamine starting from a corresponding alkenyl nitrile comprising at least one C—C double bond, which comprises the steps
| 04-29-2010 |
20100249467 | METHOD FOR PRODUCING OPTICALLY ACTIVE, RACEMIC MENTHOL - The present invention relates to a particularly economic overall method for producing menthol, specifically for producing optically active, essentially enantiomerically and diastereomerically pure L-menthol and racemic menthol, starting from the starting material citral which is available inexpensively on an industrial scale. The method comprises the following steps | 09-30-2010 |
20110087038 | PROCESS AND DEVICE FOR THE OXIDATION OF ORGANIC COMPOUNDS - The invention relates to a process for the oxidation of organic compounds by means of oxygen, in which, in a first step, the organic compound and at least part of the oxygen required for the oxidation are introduced into a first reaction zone which is operated isothermally and with backmixing and, in a second step, the reaction mixture from the first reaction zone is introduced into a second reaction zone which is operated adiabatically. The invention further relates to a reactor for carrying out the process, which comprises at least one isothermal reaction zone ( | 04-14-2011 |
20110137077 | PROCESS AND APPARATUS FOR OXIDIZING ORGANIC COMPOUNDS - The invention relates to a process for oxidizing at least one organic substance with oxygen, which comprises the following steps:
| 06-09-2011 |
20130046118 | METHOD FOR PRODUCING OPTICALLY ACTIVE, RACEMIC MENTHOL - The present invention relates to a particularly economic overall method for producing menthol, specifically for producing optically active, essentially enantiomerically and diastereomerically pure L-menthol and racemic menthol, starting from the starting material citral which is available inexpensively on an industrial scale. The method comprises the following steps
| 02-21-2013 |
Patent application number | Description | Published |
20110137097 | PROCESS FOR ISOMERIZING A SATURATED, BRANCHED AND CYCLIC HYDROCARBON - A process for isomerizing a saturated, branched and cyclic hydrocarbon, in which a tertiary carbon atom of the hydrocarbon is converted to a secondary carbon atom in the course of isomerization, by performing the isomerization in the presence of a superacidic ionic liquid comprising an organic cation and an inorganic anion, where the anion is a superacidic aluminum trichloride-Lewis base adduct, and of a copper(II) compound. | 06-09-2011 |
20110137098 | PROCESS FOR ISOMERIZING A SATURATED HYDROCARBON - A process for isomerizing a saturated hydrocarbon, by performing the isomerization in the presence of a superacidic ionic liquid comprising an organic cation and an inorganic anion, where the anion is a superacidic aluminum trichloride-Lewis base adduct, and of an olefin. | 06-09-2011 |
20110295039 | PROCESS FOR PREPARING TOLUENEDIAMINE BY HYDROGENATION OF DINITROTOLUENE - The invention relates to a process for the continuous preparation of toluenediamine by liquid-phase hydrogenation of dinitrotoluene by means of hydrogen in the presence of a suspended, nickel-comprising catalyst in a reactor with a product isolation unit downstream of the reactor to give a product output from the reactor comprising a liquid phase comprising toluenediamine and dinitrotoluene, in which the nickel-comprising catalyst is suspended, wherein the concentration of dinitrotoluene in the liquid phase of the product output from the reactor in the region between the reactor and the downstream product isolation unit is set to a value in the range from 1 to 200 ppm by weight, based on the total weight of the liquid phase of the product output from the reactor. | 12-01-2011 |