Patent application number | Description | Published |
20080214863 | PROCESS FOR PREPARING A CATALYST CONSISTING OF A SUPPORT BODY AND A CATALYTICALLY ACTIVE COMPOSITION APPLIED ON THE SURFACE OF THE SUPPORT BODY - A process for preparing a coated catalyst in which a finely divided mixture of a multielement oxide comprising the elements Mo and V and a molybdenum oxide or a molybdenum oxide former is applied to the surface of a support body as an active composition. | 09-04-2008 |
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 |
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 |
20080307648 | PROCESS FOR INTRODUCING A PORTION WITHDRAWN FROM AT LEAST ONE PRODUCTION CHARGE OF ANNULAR COATED CATALYSTS K INTO A REACTION TUBE OF A TUBE BUNDLE REACTOR - A process for introducing annular coated catalysts K into a reaction tube of a tube bundle reactor, in which adhering pairs of annular coated catalysts K formed in the preparation of the annular coated catalysts K, before the introduction thereof into the reaction tube, are removed at least partly from the annular coated catalysts K. | 12-18-2008 |
20080312477 | PROCESS FOR CHARGING A REACTOR WITH A FIXED CATALYST BED WHICH COMPRISES AT LEAST ANNULAR SHAPED CATALYST BODIES K - A process for charging a reactor with a fixed catalyst bed which comprises at least one annular shaped support catalyst body K, in which, before the charging, fragments formed in the preparation of the shaped catalyst bodies K are removed by screening. | 12-18-2008 |
20100069659 | 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 |
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 |
20110065953 | PROCESS FOR THE LONG-TERM OPERATION OF A HETEROGENEOUSLY CATALYZED PARTIAL GAS PHASE OXIDATION OF AN ORGANIC STARTING COMPOUND - A process for the long-term operation of a heterogeneously catalyzed partial gas phase oxidation of an organic starting compound, in which the reaction gas input mixture is partially oxidized over a fixed catalyst bed which is accommodated in two successive temperature zones A, B whose temperature is changed with increasing operating time such that the initially lower temperature increases and the difference between the two temperatures decreases. | 03-17-2011 |
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 |
20140039213 | 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 | 02-06-2014 |
20140296558 | 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 | 10-02-2014 |