The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2018
Filed:
Jul. 12, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Mitsuru Sakano, Toyota, JP;
Shohei Kawamura, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
An object of the present disclosure is to provide a method for producing a NOx storage-reduction catalyst capable of inhibiting decreases in NOx purification performance following exposure to high temperatures. The present disclosure achieves the aforementioned object with a method for producing a NOx storage-reduction catalyst, comprising: (A) supporting potassium compound particles on catalyst support particles by using an potassium dispersed water containing the potassium compound particles, and (B) calcining the catalyst support particles supporting the potassium compound particles; wherein, the potassium compound particles are at least one type selected from the group consisting of oteracil potassium, potassium tetranitroacridone, potassium tetraphenylborate, and potassium tetranitrophenothiazine-9-oxide.