Preparation method for metal-modified SAPO molecular sieve

US10850267B2 · kind B2 · utility

Assignee

• DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES · CN

Inventors

• Xiao-Dong Xiang · Danville, US
• Peng Tian · 东风镇, CN
• Zhongmin Liu · 东风镇, CN
• Yue Yang · Suzhou, CN
• Lin Liu · Gainesville, US
• Miao Yang · Beijing, CN
• Hongyi Yang · Dalian, CN
• Shiyun Sang · Dalian, CN
• Yanli He · Zhanjiang, CN

Key dates

• Filing date: Jan 30, 2015
• Grant date: Dec 1, 2020
• Expiry date: Jan 30, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2529/85
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A preparation method for a metal-modified SAPO molecular sieve is disclosed, characterized in adding a raw powder of the SAPO molecular sieve to a solution containing metal ions for performing ion exchange, and then washing and drying the obtained solid after ion exchange, so as to obtain the metal-modified SAPO molecular sieve. The metal-modified SAPO molecular sieve prepared has a relatively high degree of crystallinity, and the metal elements occupy the ionic positions in the channels and/or cages of the SAPO molecular sieve, and the metal-modified SAPO molecular sieve shows excellent catalytic performance in the catalytic reaction.