Patent ID: 6730631
Filing Date: 2004-05-04
Classification: B01J,C07C

Abstract:
A process for producing monolithic supported catalysts for gas-phase oxidation comprisingcoating a catalyst support with a suspension, wherein the suspension comprises catalytically active composition comprising at least one type of TiO2 and 1-10% by weight of at least one surfactant of the formula RnYmX where R is a hydrophobic group of the surfactant and n is 1, 2 or 3; Y is a hydrophilic group of the surfactant and m is 0, 1, 2 or 3, and X is a hydrophilic head group of the surfactant; and the percent by weight is based upon the total weight of the compositions;wherein the head group X present in the surfactant is a functional group selected from the group consisting of carboxylate, polycarboxylate, phosphate, phosphonate, sulfate and sulfonate; and wherein hydrophobic groups R of the surfactant used are selected from the group consisting of saturated alkyl radicals with carbon building blocks having from 5 to 30 carbon atoms, unsaturated alkyl radicals with carbon building blocks having from 5 to 30 carbon atoms; and branched alkyl radicals with carbon building blocks having from 5 to 30 carbon atoms and are bound either directly or via aryl groups to a group selected from the group consisting of the hydrophilic group Y and the head group X.