METHOD FOR PREPARING OF CATALYST FILTER FOR PURIFYING EXHAUST GAS OF DIESEL AUTOMOBILE

摘要

The method of manufacturing a catalyst for purification of diesel exhaust gas filter is provided in accordance with the present invention. Step of the method of manufacturing the catalytic filters, under-coating a support solution in a catalyst filter; Drying and firing the catalyst under-coated filter; Coating a noble metal solution; Drying the coated noble metal solution, a step of calcination and reduction. The continuous use of the nitrogen oxides is derived according to the catalytic filter manufacturing method according to the present invention there is provided a high activity catalyst filter to remove particulate matter at a low temperature, particles with a catalyst filter provided in this manner and the oxidation of gaseous pollutants minimal amount of precious metal required for the filters made according to the progress remarkably lowering the temperature may of course saves energy required for the heating filter. ; Diesel exhaust, the filter catalyst, a noble metal, a support, moisturizers