Method for preparing polymethoxymethylal

US7560599B2 · kind B2 · utility

Assignee

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

Inventors

• Jing Chen · Lanzhou, CN
• Zhonghua Tang · Lanzhou, CN
• Chungu Xia · Lanzhou, CN
• Xinzhi Zhang · Lanzhou, CN
• Zhen Li · Hsinchu, TW

Key dates

• Filing date: Jul 28, 2008
• Grant date: Jul 14, 2009
• Expiry date: Jul 28, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C41/56
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

This invention describes a method for preparing polymethoxymethylal. By this method, polymethoxymethylal is prepared by a catalytic reaction using methanol and trioxymethylene as reactants and using an ionic liquid as catalyst under a relatively moderate reaction condition. The catalyst of this invention has a high catalytic activity and a high conversion; the reaction process is simple, easy to be operated and has a strong controllability; the distribution of the products after reaction is superior and the utilization ratio of the raw materials is high.