N.e. Chemcat Corporation

Kiyohiko Saito

Makoto Nagata

Yukio Takagi

Yasuyuki Banno

Provided are a high-performance Cu&#x2014;P co-supported zeolite and the like having excellent thermal endurance and catalyst performance. A Cu&#x2014;P co-supported zeolite comprising at least a small pore size zeolite, and an extra-backbone copper atom and an extra-backbone phosphorus atom supported on the small pore size zeolite, wherein a silica-alumina ratio (SiO/AlO) is 7 or more and 20 or less, a ratio of the copper atom to a T atom (Cu/T) is 0.005 or more and 0.060 or less, a ratio of the phosphorus atom to the T atom (P/T) is 0.005 or more and 0.060 or less, and a ratio of the phosphorus atom to the copper atom (P/Cu) is 0.1 or more and 3 or less.

Cu&#x2014;P co-supported zeolite, and selective catalytic reduction catalyst and catalyst for exhaust gas using same

A slurry composition for a catalyst and a method for producing the same, a catalyst and a method for producing the same using the slurry composition for a catalyst. The method omits many heretofore required treatment steps and reduces catalyst production cost. The method comprising the steps of providing a slurry composition for a catalyst, comprising at least an aluminosilicate, Cu, and water, and having a solid concentration of 0.1% by mass to 90% by mass, wherein a component for a catalyst has composition represented by AlO&#xb7;xSiO&#xb7;yTO&#xb7;zCuO (wherein T is a quaternary ammonium cation, and x, y and z are numbers that satisfy 10&#x2264;x&#x2264;40, 0.1&#x2264;y&#x3c;2.0, and 0.1&#x2264;z&#x3c;2.0, respectively) in terms of molar ratio based on an oxide; coating at least one side of a support with this slurry composition; and heat-treating at 350&#xb0; C. or higher.

Slurry composition for catalyst and method for producing same, method for producing catalyst using this slurry composition for catalyst, and method for producing Cu-containing zeolite

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Tokyo, Japan

Kiyohiko Saito