Patent application number | Description | Published |
20080260605 | PROCESS FOR PREPARING AT LEAST ONE ORGANIC TARGET COMPOUND BY HETEROGENEOUSLY CATALYZED GAS PHASE PARTIAL OXIDATION - A process for preparing an organic target compound by heterogeneously catalyzed gas phase partial oxidation of an organic precursor compound with molecular oxygen in two oxidation reactor lines operated in parallel and removal of the target compound from the mixture of the product gas streams in a workup line, wherein the catalysts charge of one of the oxidation lines comprises a portion of catalyst over which the heterogeneously catalyzed gas phase partial oxidation has already been carried out for longer than over the portions of catalyst of the catalyst charge of the other oxidation reactor line. | 10-23-2008 |
20080269521 | PROCESS FOR STARTING-UP A HETEROGENEOUSLY CATALYZED PARTIAL GAS PHASE OXIDATION OF ACROLEIN TO ACRYLIC ACID OR OF METHACROLEIN TO METHACRYLIC ACID - A process for starting-up a heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid or of methacrolein to methacrylic acid over a fixed catalyst bed disposed in a tube bundle reactor cooled by a heat exchange medium, wherein the temperature of the heat exchange medium is ≧290° C. and the temperature of that reactor plate surface which faces the reaction gas entry mixture and the temperature of the reaction gas entry mixture itself are ≦285° C. | 10-30-2008 |
20080269522 | PROCESS FOR OPERATING AN EXOTHERMIC HETEROGENEOUSLY CATALYZED PARTIAL GAS PHASE OXIDATION OF AN ORGANIC STARTING COMPOUND TO AN ORGANIC TARGET COMPOUND - A process for operating an exothermic heterogeneously catalyzed partial gas phase oxidation of an organic starting compound in a tube bundle reactor cooled with a fluid heat carrier, in which an increase in the loading of the fixed catalyst bed disposed in the reaction tubes with the organic starting compound is preceded by an increase in the inlet temperature of the fluid heat carrier into the space surrounding the reaction tubes. | 10-30-2008 |
20080300414 | PROCESS FOR RECHARGING THE REACTION TUBES OF A TUBE BUNDLE REACTOR WITH A NEW FIXED CATALYST BED - A process for recharging the reaction tubes of a tube bundle reactor with a new fixed catalyst bed, in which a heterogeneously catalyzed partial gas phase oxidation of an organic compound had been performed beforehand in a preceding fixed catalyst bed comprising Mo-comprising multielement oxide active compositions to form a steam-comprising product gas mixture, in which, before the recharge, solid deposit which had been deposited on the tube inner walls and comprises molybdenum oxide and/or molybdenum oxide hydrate is brushed away with the aid of a brush. | 12-04-2008 |
20100069660 | PROCESS FOR PRODUCING GEOMETRIC SHAPED CATALYST BODIES - A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry | 03-18-2010 |
20100152472 | PROCESS FOR SILYLATING MONOCARBOXYLIC ACIDS - A process for preparing silylated monocarboxylic acids by reacting C | 06-17-2010 |
20100274042 | PROCESS FOR PREPARING (METH)ACRYLIC ESTERS OF ALCOHOLS COMPRISING POLYALKOXY GROUPS - A process for preparing (meth)acrylic esters (E) of alcohols (A) comprising polyalkoxy groups, in which alcohols (A) which comprise polyalkoxy groups and are of the formula (I) | 10-28-2010 |
20110130582 | PROCESS FOR PREPARING (METH)ACRYLATES OF C17-ALCOHOL MIXTURES - A process for preparing (meth)acrylates of C | 06-02-2011 |
20120077977 | PROCESS FOR PREPARING (METH)ACRYLIC ESTERS OF N,N-SUBSTITUTED AMINO ALCOHOLS - The present invention relates to a process for preparing (meth)acrylic esters (F) of N,N-substituted amino alcohols, by transesterifying N,N-substituted amino alcohols (I) | 03-29-2012 |
20120157701 | PROCESS FOR PREPARING SILOXY CARBOXYLATES - A process for preparing siloxy carboxylates is characterized by reaction of C | 06-21-2012 |
20120296108 | PROCESS FOR PRODUCING GEOMETRIC SHAPED CATALYST BODIES - A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry | 11-22-2012 |
20130178592 | PROCESS FOR PREPARING (METH)ACRYLIC ESTERS - The invention relates to a process for preparing (meth)acrylic esters by esterifying (meth)acrylic acid or transesterifying at least one (meth)acrylic ester with at least one compound comprising at least one OH group in the presence of a heterogeneous catalyst comprising at least one inorganic salt, wherein the esterification or transesterification is performed in the presence of 300 to 3000 ppm of water based on the total weight of the reaction mixture. | 07-11-2013 |