Catalyst

Abstract

The present invention provides hydro-oxidation catalysts for the oxidation of hydrocarbons, containing an organic-inorganic hybrid material as well as gold particles and/or silver particles, a process for the production thereof, and the use thereof as a catalyst.

1 - 7 . (Cancelled)  
     
     
         8 . A catalyst made by a process comprising, 
 providing a support, and    impregnating the support with an organic-inorganic hybrid material which is formed from the organic-inorganic hybrid solT containing titanium in chemically bound form, and at least one of gold particles and silver particles.    
     
     
         9 . The catalyst according to  claim 8 , wherein the organic-inorganic hybrid material is based on silicon oxide.  
     
     
         10 . The catalyst according to  claim 9 , wherein the organic-inorganic hybrid material contains terminal and/or bridging organic groups on the silicon atoms of the organic-inorganic hybrid material.  
     
     
         11 . The catalyst according to  claim 8 , wherein the sum of the contents of gold and silver in the organic-inorganic hybrid material totals 0.001 to 15 % by weight.  
     
     
         12 . The catalyst according to  claim 11 , wherein the content of gold in the organic-inorganic hybrid material is 0.001 -2% by weight.  
     
     
         13 . The catalyst according to  claim 11 , wherein the content of silver in the organic-inorganic hybrid material is 0.01 -15% by weight.  
     
     
         14 . The catalyst according to  claim 8 , containing gold particles having a diameter less than 10 nm.  
     
     
         15 . The catalyst according to  claim 8 , wherein the catalyst comprises other extraneous oxides (promoters).  
     
     
         16 - 18 . (Cancelled)  
     
     
         19 . The catalysts according to  claim 8 , wherein the titanium is present as titanium oxide and wherein the titanium oxide concentration is 0.1 to 10 mol % with respect to the amount of Si and Ti in the hybrid material.  
     
     
         20 . (Cancelled)  
     
     
         21 . The catalyst according to  claim 8 , wherein the support is selected from the group consisting of oxides of silicon, oxides of aluminium, oxides of zirconium, oxides of titanium, oxides of boron, zeolites, clays, mixed oxides of the aforementioned oxides, carbon, activated carbon, carbon black, graphite, monoliths, knitted fabrics, cordierite monoliths, ceramic foams, alkali carbonates, alkaline earth carbonates, carbides, silicon carbide, silicon nitride, metals, glasses and mixtures thereof.  
     
     
         22 . The catalyst according to  claim 8 , wherein the support is selected from the group consisting of alumina, silicon oxide, silicon carbide, carbon and cordierite monolith.