| 摘要 |
PURPOSE:To enlarge the effective reaction surface area of the title catalyst and to enhance the efficiency in removing carbon monoxide by depositing the mixed powder of manganese dioxide and another metal oxide on the surface of a granular thermoplastic resin. CONSTITUTION:The granular thermoplastic resin and the mixed powder of manganese dioxide and another metal oxide are charged, for example, in a rotary evaporator, rotated while being heated, and mixed to deposit the mixed powder on the surface of the thermoplastic resin, and the oxidation catalyst is produced. The heating is carried out at a temp. within + or -5 deg.C of the m.p. of the thermoplastic resin. Polyethylene, polypropylene, polyamide, etc., can be exemplified as the thermoplastic resin, and the grain diameter is controlled to about 1.0-2.0mm. Meanwhile, the oxides of copper, cobalt, chromium, iron, titanium, etc., and activated alumina, etc., are used as another metal oxide. |
