Method of preparing a catalyst composition comprising nickel, iron and copper and the product thereof

Claim 2

A CATALYST FOR THE OXIDATION OF TE COMBUSTIBLE MATTERS CONTAINED IN THE EXHAUST FUMES OF INTERNAL COMBUSTION BUSTION ENGINES, CONSISTNG ESSENTIALLY OF FINELY DIVIDED NICKEL PARTICLES AND FINELY DIVIDED IRON PARTICLES WITH THEIR SURFACES COVERED BY A LAYER OF COPPER OXIDE, SAID NICKEL PARTICLES AND COPPER OXIDE COVERED IRON PARTICLES BEING INTERMIXED AND SINTERED TOGETHER.

Claim 3

THE PROCESS OF PRODUCING A CATALYST FOR THE OXIDATION OF CARBON MONOXIDE GAS, GASEOUS HYDROCARBONS, HYDROGEN GAS, WHICH COMPRISES THE INTIMATE MIXING OF FINELY DIVIDED PARTICLES OF IRON WITH THEIR SURFACES COVERED BY A LAYER OF COPPER WITH FINELY DIVIDED NICKEL PARTICLES, SINTERING THE MIXTURE OF PARTICLES BY THE APPLICATION OF HEAT IN A NON-OXIDIZING ATMOSPHER, THE TEMPERATURE OF THE SINTERING MIXTURE BEING KEPT OVER 600*C., OXIDIZING THE SINTERED MIXTURE BY THE APPLICATION OF HEAT IN AN OXIDIZING ATMOSPHERE AND INALLYHEATING THE OXIDIZED AND SINTERED PARTICLES TO A TEMEPRATURE BETWEEN 200*C. AND 300*C. IN AN ATMOSPHERE OF HYDROGEN.

Claim 4

THE PROCESS OF PRODUCING A CATALYST FOR THE OXIDATION OF CARBON MONOXIDE GAS, GASEOUS HYDROCARBONS, HYDROGEN GAS, WHICH COMPRISES THE INTIMATE MIXING OF FINELY DIVIDED PARTICLES OF IRON WITH THEIR SURFACES COVERED BY A LAYER OF COPPER WITH FINELY DIVIDED NICKEL PARTICLES, SINTERING THE MIXTURE OF PARTICLES BY THE APPLICATION OF HEAT IN A NON-OXIDIZING ATMOSPHER, THE TEMPERATURE OF THE SINTERING MIXTURE BEING KEPT OVER 600*C., OXIDIZING THE SINTERED MIXTURE BY THE APPLICATION OF HEAT IN AN OXIDIZING ATMOSPHERE AND INALLYHEATING THE OXIDIZED AND SINTERED PARTICLES TO A TEMEPRATURE BETWEEN 200*C. AND 300*C. IN AN ATMOSPHERE OF HYDROGEN.