Active zinc-based catalyst and preparation method thereof, and use in catalyzing rearrangement reaction of ibuprofen

US11826726B2 · kind B2 · utility

Assignee

• Qingdao University of Science and Technology · CN

Inventors

• Yinglong WANG · Jinan, CN
• Peizhe Cui · Qingdao, CN
• Zhaoyou Zhu · Qingdao, CN
• Fanqing Meng · Beijing, CN
• Xin Li · Nanhu, CN
• Jianguang Qi · Qingdao, CN
• Limei Zhong · Qingdao, CN
• Deping Du · Qingdao, CN
• Bingkun Xia · Qingdao, CN
• Jianbo JIA · Qingdao, CN
• Zuxing Kou · Qingdao, CN

Key dates

• Filing date: Jul 8, 2022
• Grant date: Nov 28, 2023
• Expiry date: Jul 15, 2042

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2235/30
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present disclosure provides an active zinc-based catalyst and a preparation method thereof, and use in catalyzing a rearrangement reaction of ibuprofen. The active zinc-based catalyst includes a carbon-based fiber material and nano-zinc oxide supported on a fiber surface of the carbon-based fiber material. The active zinc-based catalyst is introduced with the carbon-based fiber material, and the carbon-based fiber material is capable of increasing a specific surface area of the catalyst, thereby improving a dispersion degree of zinc oxide, increasing the number of catalytic active sites, and significantly improving a catalytic activity. Meanwhile, due to a certain mechanical strength, the carbon-based fiber material is capable of improving a mechanical strength of the catalyst, making the catalyst exist stably in ketal fluid, maintaining a stable morphology of the catalyst, and avoiding or inhibiting reduction of the catalytic active sites, thereby ensuring a catalytic stability.