Method for preparing low-grade unsaturated fatty acid ester

US10919832B2 · kind B2 · utility

Assignee

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

Inventors

• Zhanling Ma · Dalian, CN
• Wenliang Zhu · Dalian, CN
• Xiangang Ma · Dalian, CN
• Hongchao Liu · 东风镇, CN
• Yong Liu · Dalian, CN
• Youming Ni · Dalian, CN
• Shiping Liu · Columbia, US
• Qiwei Chen · Dalian, CN
• Zhongmin Liu · 东风镇, CN

Key dates

• Filing date: Nov 25, 2016
• Grant date: Feb 16, 2021
• Expiry date: Nov 25, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C69/54
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Provided is a method for preparing a lower unsaturated fatty acid ester, which comprises carrying out an aldol condensation reaction between dimethoxymethane (DMM) and a lower acid or ester with a molecular formula of R1—CH2—COO—R2 on an acidic molecular sieve catalyst in an inert atmosphere to obtain a lower unsaturated fatty acid or ester(CH2═C(R1)—COO—R2), wherein R1 and R2 are groups each independently selected from the group consisting of H— and C1-C4 saturated alkyl group.