草酸二甲酯催化制备碳酸二甲酯反应过程研究  

Study on the catalytic preparation reaction process of dimethyl carbonate from dimethyl oxalate

作　　者：张成祥 ZHANG Chengxiang(Yankuang Guohong Chemical Industry Co.,Ltd.,Jining,Shandong 273500,China)

机构地区：[1]兖矿国宏化工有限责任公司,山东省济宁市273500

出　　处：《中国煤炭》2024年第2期124-131,共8页China Coal

摘　　要：研究了草酸二甲酯脱羰生成碳酸二甲酯的反应机理,设计开发了新型脱羰催化剂,分别进行了间歇釜式、连续固定床两种反应工艺催化剂的评价筛选和反应工艺条件优化。通过对草酸二甲酯脱羰催化剂及工艺的实验研发,发明了一种含铯固体碱催化剂(主要成分为Ba-CeCs_(2)CO_(3)-Al_(2)O_(3),简称“BS-CCL”);采用该催化剂,间歇釜式反应工艺中草酸二甲酯的转化率高,生成碳酸二甲酯的选择性较好。The reaction mechanism of decarbonylation of dimethyl oxalate to produce dimethyl carbonate was studied,and a new decarbonylation catalyst was designed and developed,the evaluation and screening of catalysts,and the optimization of reaction conditions for two reaction processes(batch reactor and continuous fixed bed)were carried out.A cesium containing solid base catalyst(mainly composed of Ba-CeCs_(2)CO_(3)-Al_(2)O_(3),abbreviated as"BS-CCL")has been invented through experimental research and development of catalysts and processes for decarbonylation of dimethyl oxalate.The catalyst has a high conversion rate of dimethyl oxalate in the batch reactor process and good selectivity for generating dimethyl carbonate.

关 键 词：碳酸二甲酯 草酸二甲酯 脱羰 固体碱催化剂 反应条件 

分 类 号：TQ413[化学工程]