Patent application number | Description | Published |
20080234518 | Process for producing aromatic amines - Aromatic amines are produced by adiabatic hydrogenation of nitroaromatic compounds in the gas phase on one or more fixed catalysts. The nitroaromatic reactant is passed over the catalyst under pressure and at elevated temperature with hydrogen, water, optionally nitrogen and substantially in the absence of the aromatic amine produced from the nitroaromatic. | 09-25-2008 |
20080267857 | RUTHENIUM CATALYSTS HAVING ENHANCED LONG-TERM STABILITY AND ACTIVITY - Oxidation catalysts comprising one or more ruthenium compounds and one or more promoters selected from the group consisting of zirconium halides, alkali metal halides, alkaline earth metal halides and lanthanum compounds, wherein the molar ratio of promoter to ruthenium is in the range of from 1:100 to 1:1; as well as processes for their preparation and use. | 10-30-2008 |
20090028780 | METHOD AND DEVICE FOR PRODUCING CHLORINE BY GAS PHASE OXIDATION IN A COOL WALL REACTOR - The present invention relates to a process and an apparatus for preparing chlorine by gas-phase oxidation of hydrogen chloride by means of an oxygen-containing gas stream, wherein the catalyst required for the reaction is applied to the interior wall of one or more externally cooled reaction channels. | 01-29-2009 |
20090093655 | METHOD AND DEVICE FOR PRODUCING AROMATIC AMINES BY HETEROGENEOUS CATALYZED HYDRATION - The present invention relates to a process and an apparatus for preparing aromatic amines by means of a heterogeneously catalysed hydrogenation, wherein the catalyst required for the reaction is applied to the interior wall of one or more reaction channels which are cooled from the outside. | 04-09-2009 |
20090304573 | PROCESSES AND APPARATUS FOR THE PRODUCTION OF CHLORINE BY GAS PHASE OXIDATION - The present invention provides a process for producing chlorine by the catalytic gas phase oxidation of hydrogen chloride with oxygen, wherein the reaction is performed on at least two catalyst beds under adiabatic conditions, as well as a reactor system for performing the process. | 12-10-2009 |
20100183498 | THERMALLY STABLE CATALYST FOR HYDROGEN CHLORIDE GAS PHASE OXIDATION - The present invention relates to a catalyst for oxidation reactions which comprises at least one constituent active in the catalysis of hydrogen chloride oxidation and support therefor, characterized in that the support is based on uranium oxide. The catalyst is notable for a high stability and activity. | 07-22-2010 |
20100189633 | METHOD FOR PRODUCING CHLORINE BY GAS PHASE OXIDATION - The present invention relates to a process for preparing chlorine by catalytic gas phase oxidation of hydrogen chloride with oxygen, by reacting the process gas mixture in a reactor in at least two separate reaction zones under adiabatic conditions over catalyst beds, and by passing the process gas mixture leaving at least one reaction zone subsequently through a heat exchanger connected downstream of the particular reaction zone. It further relates to a reactor system for preparing chlorine by catalytic gas phase oxidation of hydrogen chloride with oxygen by means of the process according to the invention. | 07-29-2010 |
20100202959 | CATALYST AND PROCESS FOR PREPARING CHLORINE BY GAS PHASE OXIDATION OF HYDROGEN CHLORIDE - The present invention relates to a catalyst and to a process for preparing chlorine by catalytic oxidation of hydrogen chloride. The catalyst comprises an active component and a support material, said active component comprising at least uranium or a uranium compound. The catalyst is notable for a high stability and activity at a lower cost compared to the noble metals. | 08-12-2010 |
20100260660 | METHOD FOR PRODUCING CHLORINE BY MULTI STEP ADIABATIC GAS PHASE OXIDATION - The present invention relates to a process for preparing chlorine by catalytic gas phase oxidation of hydrogen chloride with oxygen, in which the reaction is carried out over 18 to 60 catalyst beds connected in series under adiabatic conditions, and to a reactor system for performing the process. | 10-14-2010 |
20100310436 | REACTOR AND METHOD FOR THE PRODUCTION THEREOF - A chemical reactor | 12-09-2010 |
20110130573 | METHOD FOR PRODUCING PHTHALIC ACID ANHYDRIDE - Method for the production of phthalic acid anhydride by catalytic gas phase oxidation of o-xylol with oxygen, in which the reaction is carried out in 5 to 60 serially arranged reaction zones under adiabatic conditions, and reactor system for carrying out the method. | 06-02-2011 |