ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,020, issued on July 29, was assigned to BASF Corp. (Florham Park, N.J.).
"Preparation of SCR catalyst comprising Cu and Fe-exchanged zeolite, said catalyst, system comprising said catalyst and exhaust gas treatment using such" was invented by Jeff H. Yang (Iselin, N.J.), Wen-Mei Xue (Iselin, N.J.) and Stanley A. Roth (Yardley, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a process for preparing a catalyst for the selective catalytic reduction of nitrogen oxide. The process includes providing a zeolitic material comprising SiO2 and X2O3 in its framework structure, wherein X is a trivalent element; subjecting th...