EXHAUST GAS PURIFICATION CATALYST

Title:

EXHAUST GAS PURIFICATION CATALYST

Document Type and Number:

WIPO Patent Application WO/2017/150350

Kind Code:

A1

Abstract:

An exhaust gas purification catalyst, characterized by having a catalyst layer containing palladium, rhodium, and alumina, which supports a sulfate of an alkaline-earth metal selected from barium sulfate and strontium sulfate, and the correlation coefficients ρPd, AE and ρRh, AE calculated from the characteristic X-ray intensity measured using an electron beam micro-analyzer for the palladium, rhodium, and alkaline-earth metal being +0.75 to +1.00 and 0.00 to +0.25, respectively, using 350 points as measurement points obtained by equally dividing the catalyst layer into 351 parts in the thickness direction on a virtual straight line that runs through the catalyst layer in the thickness direction.

More Like This:

WO/2004/091778	CATALYST FOR DIMETHYL CARBONATE SYNTHESIS
JP4277170	Exhaust gas purification method and equipment
WO/1996/000222	METHOD OF PRODUCING 1,2-BUTYLENE OXIDE

Inventors:

YANAGAWA KOKI (JP)
MATSUEDA SATOSHI (JP)
SAKURADA YU (JP)
KASUYA CHIHIRO (JP)

Application Number:

PCT/JP2017/006934

Publication Date:

September 08, 2017

Filing Date:

February 23, 2017

Export Citation:

Click for automatic bibliography generation Help

Assignee:

CATALER CORP (JP)

International Classes:

B01J27/053; B01D53/94; B01J37/02; B01J37/08; F01N3/10

Domestic Patent References:

WO2013111457A1	2013-08-01
WO2010137658A1	2010-12-02
WO2013065421A1	2013-05-10

Foreign References:

JP2010274162A	2010-12-09
JP2015085241A	2015-05-07
JPH09215922A	1997-08-19
JP2010022918A	2010-02-04
JP2008100152A	2008-05-01
JPH01242149A	1989-09-27
JPH0675675B2	1994-09-28
JPH10202101A	1998-08-04
JP2004041866A	2004-02-12
JP2004041867A	2004-02-12
JP2004041868A	2004-02-12
JP2015085241A	2015-05-07

Other References: