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:
Apr. 01, 2025
Filed:
Jun. 17, 2020
Sinocat Environmental Technology Co., Ltd., Chengdu, CN;
Dacheng Li, Chengdu, CN;
Jinfeng Wang, Chengdu, CN;
Li Lan, Chengdu, CN;
Hui Ye, Chengdu, CN;
Lan Yang, Chengdu, CN;
Feng Zhang, Chengdu, CN;
Yi Yang, Chengdu, CN;
Yongxiang Cheng, Chengdu, CN;
Tiantian Luo, Chengdu, CN;
Yinhua Dong, Chengdu, CN;
Yun Wang, Chengdu, CN;
Yun Li, Chengdu, CN;
Qizhang Chen, Chengdu, CN;
SINOTECH COMPANY LIMITED, Chengdu, CN;
Abstract
A cerium-zirconium-aluminum-based composite material, a cGPF catalyst and a preparation method thereof are provided. The cerium-zirconium-aluminum-based composite material adopts a stepwise precipitation method, firstly preparing an aluminum-based pre-treated material, then coprecipitating the aluminum-based pre-treated material with zirconium and cerium sol, and finally roasting at high temperature to obtain the cerium-zirconium-aluminum-based composite material. The cerium-zirconium-aluminum-based composite material has better compactness and higher density, and when it is used in cGPF catalyst, it occupies a smaller volume of pores on the catalyst carrier, such that cGPF catalyst has lower back pressure and better ash accumulation resistance, which is beneficial to large-scale application of cGPF catalyst.