Supported catalyst, preparation method therefor and use thereof, and method for preparation of isobutylene from halomethane

US10087122B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• Fushun Research Institute of Petroleum and Petrochemicals, SINOPEC CORP. · CN

Inventors

• Xiangchen Fang · Fushun, CN
• Shudong ZHANG · 东风镇, CN
• Xinwei Zhang · Fort Collins, US
• Xiwen Zhang · Zhejiang, CN
• Xiaodan Sun · 东风镇, CN
• Jie Li · Shanghai, CN
• Xiangqian Ni · 东风镇, CN

Key dates

• Filing date: Oct 28, 2014
• Grant date: Oct 2, 2018
• Expiry date: Oct 28, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2529/40
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Provided are a supported catalyst, a preparation method therefor and use thereof, and a method for the preparation of isobutylene from halomethane. The catalyst is characterized in that it comprises a carrier and a metallic active component supported on the carrier, wherein the metallic active component comprises zinc oxide and zinc halide. On the basis of the total amount of the catalyst, by weight content, the content of zinc oxide is 0.5%-20%, the content of zinc halide is 10%-50%, and the content of the support is 40%-88%. Compared with the prior art, the catalyst of the present invention can convert halomethane into isobutylene with a high selectivity. With the reaction for preparing of isobutylene by converting bromomethane according to the method of the present invention, the conversion of bromomethane is not less than 90% and the selectivity of isobutylene is not less than 80%.