| 摘要 |
PURPOSE:To provide a catalyst for treatment of exhaust gas containing nitrogen oxides, carbon monoxide, and hydrocarbon, and to provide the production method of this catalyst. CONSTITUTION:A metal carrier with varpor deposition of Al is worked into a corrugated form or honeycomb form, heated in a furnace to make the surface alloy, and further treated in an oxidizing atmosphere to produce an Al2O3 whisker. Then a crystalline silicate having molecular sieve structure containing copper and a binder is mixed in a wet state to obtain a slurry, which is then applied by wash coating on the metal honeycomb having the Al2O3 wisker above described. Thus, the catalyst for treatment of exhaust gas can be obtd. This catalyst for treatment of exhaust gas consists of a metal honeycomb coated with the crystalline silicate having molecular sieve containing copper. |
