Patent application number | Description | Published |
20080241021 | Distribution Device for a Gas-Liquid Phase Mixture for Apparatus - Distributor device ( | 10-02-2008 |
20090220391 | Distribution Device for a Gas-Liquid Phase Mixutre for Apparatus - A shell-and-tube reactor is disclosed. Contact tubes are disposed within a cylindrical housing and are secured to tube plates. Gas and liquid phases are received via a feed opening in a lower end cap and discharged via an upper end cap in the housing. A distributor device for a gas phase/liquid phase mixture is disposed below the lowermost tube plate. The distributor device includes a distributor plate and a predistributor. The distributor plate is arranged horizontally within the housing and includes an active area having through-openings and a downward-extending margin, but does not extend over the entire cross section of the housing. The predistributor includes a second distributor plate disposed between the feed opening and the first distributor plate, wherein the second distributor plate includes a second active area with second through-openings and a second downward-extending margin. | 09-03-2009 |
20090292098 | METHOD FOR PRODUCING COLOURLESS POLYISOCYANATES THAT CONTAIN BIURET GROUPS AND ARE STABLE IN STORAGE - The present invention relates to a process for the preparation of colorless, storage-stable polyisocyanates containing biuret groups from di- or polyisocyanates using water and/or steam as a biuretizing agent, and an apparatus for this purpose and the use thereof. | 11-26-2009 |
20100240934 | METHOD FOR PRODUCING 1,2-PROPANDIOL BY HYDROGENATING GLYCERINE IN A TWO-STEP REACTOR CASCADE - The present invention relates to a process for preparing 1,2-propanediol, in which a glycerol-containing stream, especially a stream obtained on the industrial scale in the production of biodiesel, is subjected to a hydrogenation in a two-stage reactor cascade. | 09-23-2010 |
20110028579 | PROCESS FOR LIGHTENING THE COLOR OF POLYISOCYANATES WITH OZONE-CONTAINING GAS - The continuous or quasi-continuous process for lightening organic polyisocyanates with ozone-containing gas, the treatment of the organic polyisocyanate being effected with an ozone-containing gas which furthermore comprises at least one further inert and/or reactive gas can be carried out, according to the invention, in a stirred tank with connected storage tank, in a sieve tray column or in a packed column. | 02-03-2011 |
20110028761 | PROCESS FOR THE PREPARATION OF TRIAMIDES FROM AMMONIA AND AMIDODICHLORIDES - The invention relates to a process for the preparation of triamides from ammonia and amido-dichlorides. | 02-03-2011 |
20110282107 | METHOD FOR PRODUCING DEODORIZED 1,2-PROPANEDIOL - The present invention relates to a process for preparing deodorized 1,2-propanediol, to the use of the purified propanediol and to an apparatus for performing the process. | 11-17-2011 |
20120245389 | PROCESS FOR HYDROGENATING NITRILES - The present invention relates to a process for hydrogenating organic nitriles by means of hydrogen in the presence of a catalyst in a reactor, where the shaped body catalyst is arranged in a fixed bed, wherein the shaped body in the shape of spheres or rods has in each case a diameter 3 mm or less, in the shape of tablets a height of 4 mm or less, and in the case of all other geometries in each case has an equivalent diameter L=1/a′ of 0.70 mm or less, where a′ is the external surface area per unit volume (mm | 09-27-2012 |
20120245390 | PROCESS FOR HYDROGENATING NITRILES - The present invention relates to a process for hydrogenating nitriles by means of hydrogen in the presence of a catalyst in a reactor, where the catalyst is arranged in a fixed bed, wherein the cross-sectional loading in the reactor is in the range from 5 kg/(m | 09-27-2012 |
20130023700 | PROCESS FOR A CONTINUOUS PRODUCTION OF POLYETHEROLS - A process for a continuous production of a polyetherol first involves reacting an alcohol with a starter or an alkoxylated precursor, to give a mixture comprising an alcoholate and water. Water is then removed from the mixture. The process further involves feeding the alcoholate into a bubble column and feeding an alkylene oxide into the bottom of a compartment of the bubble column, such that the alkylene oxide rises in the alcoholate. The alkylene oxide then reacts with the alcoholate or a secondary product from the reaction between the alcoholate and alkylene oxide, to give the polyetherol. | 01-24-2013 |
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 |
20130131385 | Process for Preparing Ethylamines and Monoisopropylamine (MIPA) - A process for preparing ethylamines and monoisopropylamine (MIPA), in which bioethanol is reacted with ammonia in the presence of hydrogen and of a heterogeneous catalyst to give ethylamines, said bioethanol having a content of sulfur and/or sulfur compounds of ≧0.1 ppm by weight (calculated S), and then isopropanol is reacted with ammonia in the presence of the same catalyst and in the presence of hydrogen to give MIPA. | 05-23-2013 |
20140200351 | APPARATUS AND PROCESS FOR THE CONTINUOUS REACTION OF LIQUIDS WITH GASES - The present invention relates to an apparatus of the loop Venturi reactor type for the continuous reaction of liquids with gases, in particular for hydrogenations, oxidations or acetylations, e.g. for the preparation of toluenediamine by hydrogenation of dinitrotoluene, and a process for the continuous reaction of liquid reactants with gaseous reactants in the apparatus. The apparatus of the invention comprises one or more ejectors which each comprise a diffuser. | 07-17-2014 |
20140200369 | APPARATUS AND PROCESS FOR THE CONTINUOUS REACTION OF LIQUIDS WITH GASES - The present invention relates to an apparatus of the loop Venturi reactor type for the continuous reaction of liquids with gases, in particular for hydrogenations, oxidations or acetylations, e.g. for the preparation of toluenediamine by hydrogenation of dinitrotoluene, and a process for the continuous reaction of liquid reactants with gaseous reactants in the apparatus. In the apparatus of the invention, the diversion of an internal circulatory flow in the reactor is effected by means of a diversion pan which is arranged underneath a heat exchanger. | 07-17-2014 |
20140200370 | APPARATUS AND PROCESS FOR THE CONTINUOUS REACTION OF LIQUIDS WITH GASES - The present invention relates to an apparatus of the loop Venturi reactor type for the continuous reaction of liquids with gases, in particular for hydrogenations, oxidations or acetylations, e.g. for the preparation of toluenediamine by hydrogenation of dinitrotoluene, and a process for the continuous reaction of liquid reactants with gaseous reactants in the apparatus. Here, the cooling medium surrounds the tubes of the heat exchanger of the apparatus of the invention whereas the reaction takes place in the tubes. | 07-17-2014 |
20140343329 | PROCESS FOR PREPARING DEODORIZED 1,2-PROPANEDIOL - The present invention relates to a process for preparing deodorized 1,2-propanediol, to the use of the purified propanediol and to an apparatus for performing the process. | 11-20-2014 |