A process for preparing a catalyst for purifying the exhaust gases from diesel engines
摘要
<p>Catalyst contains zeolite(s), a Pt-group metal, and metal oxide(s) selected from Al-silicate, Al2O3 and titanium oxide. The Al-silicate has a weight ratio of SiO2/Al2O3 of 0.005-1. The Pt-group metals are deposited only on the metal oxide(s).</p>
