Patent application number | Description | Published |
20090030250 | SELECTIVE HYDROGENATION CATALYST - A catalyst on an oxidic support and processes for selectively hydrogenating unsaturated compounds in hydrocarbon streams comprising them using these catalysts are described. | 01-29-2009 |
20090069590 | PROCESS FOR PREPARING AMINOALKYLNITRILES AND DIAMINES FROM SUCH NITRILES - The present invention relates to a process for preparing an aminoalkyl nitrile by reaction of a corresponding monoamine with a corresponding alkenyl nitrile in a continuous mode of operation, which comprises the steps
| 03-12-2009 |
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 |
20090326287 | METHOD FOR PRODUCING O-XYLENE - A process for preparing o-xylene comprises the steps of
| 12-31-2009 |
20100036168 | CONTINUOUS PROCESS FOR THE HYDROGENATION OF 3-CYANO-3,5,5-TRIMETHYL-CYCLOHEXYLIMINE - The present invention relates to a continuous process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine by reacting a feed stream comprising 3-cyano-3,5,5-trimethylcyclohexylimine with hydrogen and ammonia over hydrogenation catalysts, wherein the basicity of the reaction mixture is increased during the reaction by bringing the reaction mixture into contact with a basic compound which is not ammonia and/or a basic catalyst after part of the 3-cyano-3,5,5-trimethylcyclohexylimine has been reacted. | 02-11-2010 |
20110042326 | PHOTOCATALYTICALLY ACTIVE TIO2-MOLDED BODIES - The present invention relates to a method of purifying wastewater by contacting the wastewater which is to be purified with a rod-shaped TiO | 02-24-2011 |
20110160504 | PROCESS FOR PREPARING A C4-OLEFIN MIXTURE BY SELECTIVE HYDROGENATION AND METATHESIS PROCESS FOR USING THIS STREAM - A C4-olefin mixture having a 1,3-butadiene content of from 100 to 500 ppm and a content of 1,2-dienes of less than 10 ppm is described. The present invention further provides a process for preparing this C4-olefin mixture and provides for its use in a metathesis reaction for preparing 2-pentene and/or 3-hexene. | 06-30-2011 |
20110250124 | CATALYST FOR THE OXIDATION OF SO2 TO SO3 - The invention relates to a catalyst for the oxidation of SO | 10-13-2011 |
20110251052 | CATALYST FOR THE OXIDATION OF SO2 TO SO3 - The invention relates to a catalyst for the oxidation of SO | 10-13-2011 |
20120071694 | PROCESS FOR PREPARING AMINOALKYLNITRILES AND DIAMINES FROM SUCH NITRILES - A process for preparing a diamine from a corresponding aminoalkyl nitrile, which is prepared by reaction of a corresponding monoamine with a corresponding alkenyl nitrile in a continuous mode of operation, comprising the steps: a) introduction of the corresponding monoamine into a continuously conveyed reaction stream; b) introduction of the corresponding alkenyl nitrile into the reaction stream, with this already comprising the aminoalkyl nitrile on addition; c) reaction of the reaction stream in a first reaction region; d) at least partial transfer of the reaction stream into at least one second reaction region for further reaction; e) discharge of the reaction stream from the second reaction region after the reaction; f) introduction of the reaction stream discharged in step (a) into a reduction region; and g) reduction of the aminoalkyl nitrile present in the reaction stream to the corresponding diamine. | 03-22-2012 |