| 摘要 |
This invention relates to catalytic processes for the purification of air and other gaseous media, for example, exhaust gases from industrial plant and automobiles. In particular, the invention is concerned with contacting the gas at an elevated temperature with a catalyst comprising one or more of the metals platinum, rhodium, iridium, osmium, palladium, ruthenium, gold and silver supported on or associated with a refractory oxide support made from silica, alumina or mixtures or compositions containing silica and/or alumina. |
