Carrier for silver catalyst, its preparation, a silver catalyst made from the same and its use

US9144793B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Jinbing Li · Beijing, CN
• Xianfeng Li · Changping District, CN
• Wei Lin · Taoyuan, TW
• Qiang Lin · Ota, JP
• Jianshe Chen · Beijing, CN
• Zhixiang Zhang · Nanjing, CN
• Shuyuan Cao · Beijing, CN
• Shujuan Wang · San Diego, US
• Wujun Dai · Beijing, CN

Key dates

• Filing date: Dec 28, 2011
• Grant date: Sep 29, 2015
• Expiry date: Nov 11, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention discloses an alumina carrier for a silver catalyst, a process for preparing the alumina carrier, a silver catalyst made from the alumina carrier, and a use of the silver catalyst in the production of ethylene oxide by the oxidization of ethylene. The alumina carrier comprises alumina and promoters, as well as titanium silicate molecular sieve(s); and therefore, has an improved catalytic activity.