CATALYST FOR SELECTIVE OXIDATION OF AMMONIA WITH MOLECULAR OXYGEN TO NITROGEN MONOXIDE

摘要

The catalyst is a mixed oxide system prepared by hydrothermal oxidation of gelatine mixture obtained by way of precipitation of metal hydroxide forms from solutions of their salts, which system comprises manganese, magnesium or aluminium or zinc or calcium oxides or a mixture thereof, and cerium oxide doted with an activator in amount of 0-0,5 %. The inventive catalyst may be used in processes of selective oxidation of ammonia with molecular oxygen. The catalyst is active and high selective with respect to N2O at temperatures 140-240 °C, and maintains its stable activity during the whole time of performing the process.