Catalysis of Heteropoly Acidic Salts for Synthesis of Diethylene Glycol Ethyl Ether with Diethylene Glycol and Ethanol

• 来源期刊: 中国化学（英文版）
• 学科: 化学
• 年，卷（期）: 2001,（11）
• 页码范围: 1058-1062
• 页数: 5页
• 分类号: O6
• 语种: 英文

摘要

Ag3PW12O4o and Ag4 SiW12O40 showed high activity and stability in the synthesis of diethylene glycol ethyl ether with diethylene glycol and ethanol, on which the conversion is 80.2%and 78.4%, respectively, and the selectivity of diethylene glycol ether is 75.4% and 80.6%, respectively. After the third reaction cycle, Ag3PW12O40 and Ag4SiW12O4o still showed higher activity and selectivity, on which the conversion is 72.6% and 77.5% respectively. But the activity of Ag3PMo12O40is lower, the conversion is only 21.0%. IR, XRD, TG and n-lutylamine titrimetry showed that the catalysis may be conmected with two kinds of acidic centers owned by heteropoly acidic salt.