Class / Patent application number | Description | Number of patent applications / Date published |
564450000 | Preparing alicyclic ring containing compound directly by hydrogenating benzene ring | 9 |
20100204518 | SINTERING RESISTANT CATALYST FOR USE IN HYDROGENATION AND DEHYDROGENATION REACTIONS AND METHODS FOR PRODUCING THE SAME - The invention relates to a novel thermostable palladium catalyst, a method for producing the same and the use thereof in hydrogenation reactions, especially hydrogenations of nitro compounds. | 08-12-2010 |
20110137083 | CONTINUOUS METHOD AND REACTOR FOR HYDROGENATING ORGANIC COMPOUNDS - The present invention relates to a continuous process for hydrogenating organic compounds in a polyphasic system in the presence of a homogeneous or heterogeneous catalyst, which comprises performing the process in two stages, the first stage being performed in a loop reactor with an external heat exchanger and the second stage in a bubble column reactor with limited backmixing. | 06-09-2011 |
564451000 | Plural amino nitrogens containing | 7 |
20090253938 | Method for Producing 1,2-Diamino-3-Methylcyclohexane and/or 1,2-Diamino-4-Methylcyclohexane - A process for preparing 1,2-diamino-3-methylcyclohexane and/or 1,2-diamino-4-methylcyclohexane by reacting 2,3- and/or 3,4-diaminotoluene with hydrogen at elevated pressure and elevated temperature in the presence of a heterogeneous rhodium catalyst, wherein a mixture comprising 2,3- and/or 3,4-diaminotoluene, a dialkyl ether and/or alicyclic ether as a solvent and ammonia is initially charged in an autoclave in the presence of the catalyst and subsequently hydrogenated while supplying hydrogen. | 10-08-2009 |
20100125151 | 1,2-DIAMINOCYCLOHEXANE AND CHEMICAL PROCESS - Disclosed is a process for the preparation of 1,2-cycloaliphatic diamines from 1,2-aromatic diamines. In one embodiment, the process provides a method for making 1,2-diaminocyclohexane by the reaction of 1,2-phenylenediamine contained in a polar, protic solvent with hydrogen in the presence of a supported rhodium catalyst, ammonia, and an inorganic borohydride, and having enhanced overall conversion and selectivity. | 05-20-2010 |
20110251431 | PROCESS FOR PREPARING BIS(PARA-AMINOCYCLOHEXYL)METHANE - Process for preparing bis(para-amino-cyclohexyl)methane by multiphase reaction of methylenedianiline with hydrogen, in which the reaction is performed in 5 to 50 series-connected reaction zones under adiabatic conditions. | 10-13-2011 |
20120289747 | CATALYSTS FOR THE HYDROGENATION OF AROMATIC AMINES - The present invention relates to a catalyst comprising 4% by weight of ruthenium (Ru) or more and a support material comprising silicon dioxide, wherein the nitrogen content of the catalyst after the last drying or calcination is in the range from 1 to 3% by weight, and also catalyst precursors thereof. The present patent application further relates to a process for producing an Ru-comprising catalyst, which comprises the steps impregnation, drying, calcination and reduction. In addition, the present patent application relates to a process for hydrogenating organic substances in the presence of catalysts of the invention or catalysts produced according to the invention, and also a process for producing downstream products from cycloaliphatic amines prepared according to the invention. | 11-15-2012 |
20120323041 | Method for Intermittently Producing 4,4'-Diaminodicyclohexylmethane with a Low Amount of the Trans-trans Isomer - The present invention discloses a method for intermittently producing 4,4′-diaminodicyclohexyl methane (H | 12-20-2012 |
20160068472 | METHOD FOR PREPARING DIAMINO-DICYCLOHEXYL METHANE - Disclosed is a method for preparing diamino-dicyclohexyl methane (H | 03-10-2016 |
20160152549 | CATALYST AND METHOD FOR HYDROGENATION OF 4,4'-METHYLENEDIANILINE | 06-02-2016 |