PREPARATION OF CATALYST FOR PURIFYING NITROGEN OXIDE

摘要

PURPOSE: To increase a catalytic active point and to improve remarkably the NOx purification capacity of a catalyst by a method in which copper is supported into the depths of an alumina support. CONSTITUTION: A catalyst for purifying nitrogen oxides in which copper is supported on an alumina support is prepared by a process in which the alumina support, after being immersed in a solution in which a copper salt is dissolved in a solvent, is dried and burned.