BIMETALLIC CATALYST FOR OXIDATION TREATMENT OF GASES

摘要

FIELD: chemistry. ^ SUBSTANCE: invention relates to protection of the environment from toxic components of exhaust gases, and specifically to catalytic oxidation treatment of exhaust gases which contain hydrocarbons. The proposed catalyst which contains a noble metal and oxidised stainless steel also contains rhenium in amount of 0.05-0.25 wt % combined with platinum or palladium in the same concentration interval, and oxidised stainless steel constituting the remaining percentage. Reduction of platinum or palladium and rhenium with ammonia takes place at high temperature with their reaction with precursor compounds in accordance with the chemical equation: 3[Pt(NH3)4]Cl2+6NH4ReO4+6KOHåÆ3Pt+6Re+8N2åæ+2NH3åæ+6KCl+30H2O. ^ EFFECT: given catalyst provides for high degree of purity at low temperatures, high thermal conductivity and mechanical strength at low cost. ^ 4 tbl