Method for synthesizing mordenite MOR molecular sieve, and product and use thereof

US10968109B2 · kind B2 · utility

Assignee

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

Inventors

• Linying WANG · Silong, CN
• Peng Tian · 东风镇, CN
• Zhongmin Liu · 东风镇, CN
• Hongyi Yang · Dalian, CN
• Xuebin Zhao · Laishui, CN
• Beibei GAO · Dalian, CN
• Yuyan Qiao · Dalian, CN

Key dates

• Filing date: Dec 9, 2016
• Grant date: Apr 6, 2021
• Expiry date: Mar 1, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B39/265
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for synthesizing a mordenite (MOR) molecular sieve with a modulatable location and distribution of B acid sites, and a product thereof and the use thereof. Provided is a method for synthesizing a mordenite MOR molecular sieve with acid sites located at an 8-membered ring “side pocket” in communication with a 12-membered ring pore channel in the presence or absence of an inorganic base. The method includes introducing an additional reagent and an optional fluorinating reagent which have different structures and charge densities into a synthetic gel, and the B acid sites of the obtained MOR zeolite are located at an 8-membered ring “side pocket” in communication with a 12-membered ring pore channel A catalyst product obtained exhibits an excellent performance in terms of adsorption and catalysis. The synthesis method has broad industrial application, particularly being applied to catalysts for the carbonylation reaction of dimethyl ether.