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:
Nov. 15, 2022
Filed:
Dec. 27, 2018
Fu Zhou University, Fujian, CN;
Yuanyuan Yue, Fujian, CN;
Ben Liu, Fujian, CN;
Nangui Lv, Fujian, CN;
Xiaojun Bao, Fujian, CN;
Jie Liu, Fujian, CN;
Tinhai Wang, Fujian, CN;
Pei Yuan, Fujian, CN;
Haibo Zhu, Fujian, CN;
Zhengshuai Bai, Fujian, CN;
Qingyan Cui, Fujian, CN;
Abstract
A method of preparing a mesoporous Fe—Cu—SSZ-13 molecular sieve includes activating an aluminum source, a silicon source, an iron source and a copper source respectively; mixing the activated minerals with sodium hydroxide, water and a seed crystal at 25-90° C., while controlling feeding amounts of respective raw materials so that molar ratios of respective materials in a synthesis system are as follows: SiO/AlO=10-100, SiO/FeO=30-3000, SiO/CuO=1-100, NaO/SiO=0.1-0.5, HO/SiO=10-50, template/SiO=0.01-0.5; adding an acid source to adjust pH of the system for first aging; and adding the acid source again to adjust the pH of the system for second aging to obtain aged gel; pouring an aged mixture into a kettle; cooling a crystallized product and filtering to remove a liquor; washing a filter cake; drying to obtain a solid; performing ion exchange; and filtering, washing and drying the solid to obtain powder; and placing the powder in a muffle furnace.