Patent ID: 8536374

Claim:
A method for the preparation of dicarboxylic acids from saturated hydrocarbons or cycloaliphatic hydrocarbons by catalytic oxidation comprising: oxidizing a hydrocarbon selected from the group consisting of alkanes having 1 to 10 carbon atoms in the chain and cycloaliphatic hydrocarbons having from 3 to 8 carbon atoms in the ring with oxygen as an oxidizing agent at a reaction temperature in the range of 25 to 300° C. using a solid heterogeneous catalyst being a noble metal catalyst supported on a catalyst carrier with the formula M/support, wherein M is selected from the group consisting of Au, Pd, Pt, Ru and/or Ag and the support is selected from the group consisting of oxides of titania, alumina, silica, ceria, beryllia, magnesia, calcium, zirconia and tungsten, and silicon carbide, asbestos, diatomaceous earth, aluminosilicates and zeolites.