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:
Dec. 17, 2019
Filed:
Dec. 08, 2015
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Shahekou Dalian, CN;
Youming Ni, Shahekou Dalian, CN;
Wenliang Zhu, Shahekou Dalian, CN;
Yong Liu, Shahekou Dalian, CN;
Hongchao Liu, Shahekou Dalian, CN;
Zhongmin Liu, Shahekou Dalian, CN;
Miao Yang, Shahekou Dalian, CN;
Peng Tian, Shahekou Dalian, CN;
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Shahekou Dalian, CN;
Abstract
The present application provides a method for preparing acetal carbonyl compound used as an intermediate for producing ethylene glycol, which comprises a step in which a raw material acetal and a raw gas carbon monoxide go through a reactor loaded with a catalyst containing an acidic microporous silicoaluminophosphate molecular sieve, for carrying out a carbonylation reaction. In the method of the present invention, the conversion rate of the raw material acetal is high, and the selectivity of acetal carbonylation is high, and the catalyst life is long, and no additional solvent is needed in the reaction process, and the reaction condition is relatively mild, and the process is continuous, showing the potential for industrial application. Moreover, the product of acetal carbonyl compound can be used for producing ethylene glycol by hydrogenation followed by hydrolysis.