Patent application number | Description | Published |
20080200622 | Nmr Method of Determining and Regulating the Composition of Polymer Mixtures in Polymerization - Method of determining the composition of polymer mixtures comprising defined polymer components of differing mean molar masses M | 08-21-2008 |
20080299342 | Catalyst Comprising Chromium and Zinc for Olefin Polymerization and Process for Preparing It - Catalyst for the polymerization and/or copolymerization of olefins which has a chromium content of from 0.01 to 5% by weight, based on the element in the finished catalyst, is supported on a finely divided inorganic support and is obtainable by concluding calcination at temperatures of from 350 to 1050° C. and has a zinc content of from 0.01 to 10% by weight, based on the element in the finished catalyst. | 12-04-2008 |
20100048960 | PROCESS FOR PREPARING ISOPROPANOL AND 2-BUTANOL FROM THE CORRESPONDING ALKANES - A process for preparing alkanols (I) selected from the group consisting of isopropanol and 2-butanol from the corresponding alkanes (II) selected from the group consisting of propane and n-butane, comprising the steps of:
| 02-25-2010 |
20100143226 | PROCESS FOR REMOVING NO AND N2O FROM GAS MIXTURES - A process is proposed for reprocessing the exhaust gas from a plant for producing hydroxylamine or hydroxylammonium salts by catalytic reduction of nitrogen monoxide with hydrogen for the purpose of utilization of at least a part of the nitrogen monoxide and if appropriate hydrogen present in the exhaust gas for producing hydroxylamine or hydroxylammonium salts, which comprises, in a first separation stage, selectively separating off nitrogen monoxide from the exhaust gas of the plant for producing hydroxylamine or hydroxylammonium salts. | 06-10-2010 |
20100317755 | Process For Preparation Of Ethylene Polymers For Blown Films - Process for preparation of ethylene homopolymers or copolymers, comprising the steps of a) polymerization of ethylene or of ethylene with one or more other 1-olefins in the presence of a chromium catalyst at temperatures of from 20 to 200° C. and at pressures of from 0.1 to 20 MPa, where the chromium catalyst can be prepared via application of one or more chromium compounds to a silicate support and subsequent thermal activation under oxidative conditions at temperatures of from 620 to 900° C.; b) mixing of the polyethylene in the melt in the presence of from 1000 to 2000 ppm of an antioxidant comprising at least one sterically hindered phenol and comprising at least one phosphite in a mixing ratio of from 1:5 to 5:1, with specific energy input of at least 0.17 kWh/kg. | 12-16-2010 |
20110206569 | ION EXCHANGER MOULDED BODY AND METHOD FOR PRODUCING SAME - Organic polymer moldings with ion-exchanger properties or with adsorber properties are produced by means of a powder-based rapid-prototyping process in which a pulverulent organic polymer starting material or starting material mixture is applied in a thin layer to a substrate and then, at selected sites of this layer, is subjected to admixture of a binder and of any necessary auxiliaries, or is irradiated or otherwise treated, so that the powder becomes bonded at these sites, as a result of which the powder becomes bonded not only within the layer but also to the adjacent layers, and this procedure is repeated until the desired shape of the molding has been replicated completely in the resultant powder bed, and then the powder not bonded by the binder is removed, so that the bonded powder is retained in the desired shape, where the starting material itself has the ion-exchanger properties or adsorber properties, or appropriate functionalization of the molding takes place after the shaping process. | 08-25-2011 |
20110268652 | METHOD FOR THE INTEGRATED PRODUCTION OF CELLULOSE AND LOW-MOLECULAR-WEIGHT REUSABLE MATERIALS - The present invention relates to an integrated method for producing cellulose and at least one low-molecular-weight reusable material, in which a starting material containing lignocellulose is provided and subjected to a decomposition with a processing medium. A fraction enriched with cellulose and a fraction depleted of cellulose is then isolated from the decomposition material, the depleted fraction of cellulose being subjected to a treatment during which at least one low-molecular-weight reusable material is obtained. | 11-03-2011 |
20110272623 | FORMULATION OF HYDROPHOBIZED MAGNETITE - The present invention relates to a dispersion at least comprising particles comprising at least one magnetic iron oxide as component A and a solvent mixture as component B comprising (B1) 5% to 95% by weight of at least one water-miscible organic solvent LM as component B1 and (B2) 5% to 95% by weight of water as component B2, the sum of components B1 and B2 making 100% by weight, and to a method for producing a dispersion of this kind, comprising at least the steps (I) mixing particles comprising at least one magnetic iron oxide with at least one water-miscible organic solvent LM and water, (II) homogenizing the mixture from step (I), where a shearing energy of at least 2 kW/m | 11-10-2011 |
20110306812 | PROCESS FOR THE COOLIGOMERIZATION OF OLEFINS - In a process for the cooligomerization of olefins, an olefin starting material comprising olefins having n carbon atoms and olefins having 2n carbon atoms is reacted over an olefin oligomerization catalyst to give a reaction product. The process is carried out under such conditions that the conversion of olefins having 2n carbon atoms is less than 10%. Both the cooligomer having 3n carbon atoms and the olefin having 2n carbon atoms which has been separated off from the reaction product have a high hydroformylatability. | 12-15-2011 |
20120129685 | PROCESS FOR PREPARING MULTIMETAL CYANIDE COMPOUNDS - The invention relates to a process for preparing multimetal cyanide compounds by reacting the aqueous solution of a metal salt a) with the aqueous solution of a hexacyanometalate compound b), wherein the mixture of the solutions a) and b) flows over the surface of a rotating body A to an outer region of the surface of the rotating body A and is flung off from there. | 05-24-2012 |
20120132032 | MAGNETIC RECOVERY OF VALUABLES FROM SLAG MATERIAL - The present invention relates to a process for the separation of at least one metal from a slag, comprising that at least one metal and further components, comprising at least step (A) grinding the slag, (B) if appropriate, contacting the ground slag of step (A) with at least one surface-active substance and/or at least one magnetic particle, if appropriate in the presence of at least one dispersant, resulting in formation of agglomerates of the at least one metal and the at least one magnetic particle, (C) if appropriate, addition of at least one dispersant to the mixture obtained in step (B) to give a dispersion having a suitable concentration, and (D) separation of the agglomerates from the mixture of step (B) or (C) by application of a magnetic field, and to the use of at least one magnetic particle for the separation of slag. | 05-31-2012 |
20120253005 | CONDITIONING OF DOUBLE METAL CYANIDE CATALYSTS - The invention relates to a method for conditioning double metal catalysts which are used in the production of polyether polyols. The conditioning enhances the performance of the catalyst, so that lower concentrations of the DMC catalyst can be used in polyether polyol production. | 10-04-2012 |
20130025778 | Multistage Process for Producing Hollow Plastic Articles From Half Shells - The present invention relates to a multistage process for producing hollow plastic articles, encompassing the following steps:
| 01-31-2013 |
20130172177 | SINTERING-STABLE HETEROGENEOUS CATALYSTS - A catalyst comprising (i) a support, (ii) metal particles and (iii) a shell which is arranged between the metal particles, wherein the shell (iii) comprises silicon oxide. | 07-04-2013 |
20130231493 | POROUS INORGANIC BODY - The present invention relates to a porous inorganic body comprising pores A having a pore size S | 09-05-2013 |