US 11,701,615 B2
Exhaust gas purifying catalyst
Shu Miyasaka, Kakegawa (JP); Eriko Tanaka, Kakegawa (JP); Norihiko Aono, Kakegawa (JP); Mai Huong Tran, Kakegawa (JP); Keigo Hori, Kakegawa (JP); and Daisuke Sugioka, Kakegawa (JP)
Assigned to Cataler Corporation, Kakegawa (JP)
Filed by Cataler Corporation, Kakegawa (JP)
Filed on Oct. 26, 2021, as Appl. No. 17/510,440.
Application 17/510,440 is a division of application No. 16/485,513, granted, now 11,202,991, previously published as PCT/JP2018/005691, filed on Feb. 19, 2018.
Claims priority of application No. 2017-029297 (JP), filed on Feb. 20, 2017; and application No. 2017-224344 (JP), filed on Nov. 22, 2017.
Prior Publication US 2022/0040636 A1, Feb. 10, 2022
Int. Cl. B01J 29/06 (2006.01); B01D 53/86 (2006.01); B01D 53/94 (2006.01); B01J 29/072 (2006.01); B01J 23/83 (2006.01); B01J 29/78 (2006.01); B01J 29/76 (2006.01); B01J 29/076 (2006.01); B01J 23/10 (2006.01); B01J 29/70 (2006.01); B01J 23/847 (2006.01); B01J 23/72 (2006.01); B01J 23/745 (2006.01); B01J 29/85 (2006.01); B01J 35/02 (2006.01); B01J 37/02 (2006.01); B01J 35/00 (2006.01); B01J 37/30 (2006.01); B01J 37/00 (2006.01); B01D 53/56 (2006.01); B01D 53/92 (2006.01); B01J 23/63 (2006.01); F01N 3/28 (2006.01); F01N 3/20 (2006.01)
CPC B01D 53/86 (2013.01) [B01D 53/56 (2013.01); B01D 53/565 (2013.01); B01D 53/8628 (2013.01); B01D 53/8631 (2013.01); B01D 53/92 (2013.01); B01D 53/945 (2013.01); B01D 53/9413 (2013.01); B01D 53/9418 (2013.01); B01J 23/10 (2013.01); B01J 23/72 (2013.01); B01J 23/745 (2013.01); B01J 23/83 (2013.01); B01J 23/8472 (2013.01); B01J 29/061 (2013.01); B01J 29/072 (2013.01); B01J 29/076 (2013.01); B01J 29/7053 (2013.01); B01J 29/7057 (2013.01); B01J 29/7065 (2013.01); B01J 29/76 (2013.01); B01J 29/763 (2013.01); B01J 29/7607 (2013.01); B01J 29/7615 (2013.01); B01J 29/78 (2013.01); B01J 29/783 (2013.01); B01J 29/7807 (2013.01); B01J 29/7815 (2013.01); B01J 29/85 (2013.01); B01J 35/006 (2013.01); B01J 35/008 (2013.01); B01J 35/023 (2013.01); B01J 37/0009 (2013.01); B01J 37/0201 (2013.01); B01J 37/0215 (2013.01); B01J 37/0234 (2013.01); B01J 37/0246 (2013.01); B01J 37/30 (2013.01); B01D 2255/206 (2013.01); B01D 2255/2063 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/50 (2013.01); B01D 2255/502 (2013.01); B01J 23/63 (2013.01); B01J 37/0244 (2013.01); B01J 2229/18 (2013.01); B01J 2229/186 (2013.01); B01J 2229/20 (2013.01); B01J 2229/42 (2013.01); F01N 3/2066 (2013.01); F01N 3/2803 (2013.01); F01N 2370/04 (2013.01); F01N 2510/063 (2013.01); F01N 2510/0684 (2013.01); Y02A 50/20 (2018.01); Y02T 10/12 (2013.01)] 9 Claims
 
1. A catalyst body which is used in an exhaust gas purifying catalyst, the catalyst body comprising:
zeolite particles;
a metal supported on the zeolite particles; and
a rare earth element-containing compound disposed on a surface of the zeolite particles, wherein
the rare earth element-containing compound contains lanthanum (La) as a rare earth element, and
an amount of the rare earth element-containing compound is such an amount that a molar ratio of the rare earth element relative to Si contained in the zeolite particles is 0.001 to 0.014 in terms of oxides.