【摘 要】
：
Dimethyl carbonate(DMC) has been employed as a "green" alternative to conventional methylating and acylating agents primarily because of the fact that it is nontoxic and biodegradable,has a relatively
【机 构】
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Dept.of Chem.Biomol.Eng.,Sogang Univ.,Seoul 121-742,Korea
【出 处】
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The 6th International Conference on Separation and Technolog
论文部分内容阅读
Dimethyl carbonate(DMC) has been employed as a "green" alternative to conventional methylating and acylating agents primarily because of the fact that it is nontoxic and biodegradable,has a relatively low vapor pressure,and is produced from the industrially clean oxidative acylation of methanol.The phosgenation of methanol was an important method to synthesize DMC until the 1980s.This process had the disadvantage of using or generating toxic and corrosive chemicals,such as phosgene and hydrogen chloride.At present DMC is synthesized mainly by oxidative carbonylation of methanol.In the past decade,many research groups have made a study of the direct synthesis of DMC starting from carbon dioxide and its industrial manufacturing process.This method is attractive due to various advantages.Unlike other methods using or producing toxic or corrosive chemicals,it uses carbon dioxide and methanol as raw materials and produces DMC and water.Carbon dioxide is an environmentally benign and thermodynamically stable compound.And it is nontoxic,nonfiammable and cheap.Besides,separation from the reaction mixture is relatively easy [1].
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