学术
摘 要:
碳酸二甲酯（DMC）是一种重要的绿色有机合成中间体。合成DMC有多种方法,甲醇直接气相氧化羰基化法对设备腐蚀小,产物易分离,原料易得,有着诱人的工业化前景。本文综述了甲醇直接气相氧化羰基化合成DMC的研究进展,包括反应条件的影响,催化剂的选择,反应机理及动力学的研究。针对反应副产物水会造成催化剂快速失活、设备腐蚀等问题,提出将二甲醚引入反应体系,通过耦合二甲醚水解反应消除水引起的负面效应,改善催化剂的稳定性。[著者文摘]
文章出处:
《化学进展》-2008年20卷2期 -221-226页
栏目信息:
文献标识码:
A
文章编号:
1005-281X（2008）02/3-0221-06
Synthesis of Dimethyl Carbonate by Direct Vapor-Phase Oxycarbonylation of Methanol
Song Yibing Luo Aiguo Du Yuhai Fang Yiwen （Institute of Applied Catalysis, Shantou University, Shantou 515063, China）
Abstract:
Dimethyl carbonate （DMC） is a an important green chemical imtermediate in organic synthesis. There are several ways to the synthesis of dimethyl carbonate, in which vapor-phase method has many advantages, such as low erosion, relatively easier separation of products, attainable raw materials etc. This paper reviews the research progress of the method, including reaction conditions, catalyst preparation, reaction mechanism and kinetic model. The co-product, water, in this reaction often causes catalyst deactivation and equipment corrosion. Considering the fact, the coupling of dimethyl ether （DME） hydrolysis with methanol carbonylation reaction, by using DME as a co-feed gas, is proposed to diminish the side effects from water and improve catalyst stability.[著者文摘]
Key words:
dimethyl carbonate; methanol ; dimethyl ether; vapor-phase; oxycarbonylation
基金资助:
广东省自然科学基金项目（No.06027205）和催化基础国家重点实验室基金项目（No.N-06-07）资助
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