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http://dx.doi.org/10.12925/jkocs.2007.24.4.9

A Study on the Efficient Purification Process of Dimethyl carbonate  

Lee, Sang-Won (Department of Chemical and Engineering, Chung Nam National University)
Kim, Sung-Il (R&D center, Samchun Pure Chemical Ind. Co., LTD)
Chun, Suk-Keun (R&D center, Samchun Pure Chemical Ind. Co., LTD)
Park, Du-Goan (R&D center, Samchun Pure Chemical Ind. Co., LTD)
Park, Keun-Ho (Department of Chemical engineering, Chang Won National University)
Lee, Soo (Department of Chemical engineering, Chang Won National University)
Park, So-Jin (Department of Chemical and Engineering, Chung Nam National University)
Publication Information
Journal of the Korean Applied Science and Technology / v.24, no.4, 2007 , pp. 383-392 More about this Journal
Abstract
This paper is studied on the efficient purification process of dimethyl carbonate (DMC) from the melt layer crystallization combining crystallization process, sweating process and distillation recovery process. Purity and yield of DMC crystal depended mainly on the crystallization temperature, cooling rate, sweating termperature sweating rate. Through the optimization of crystallization and sweating operation, DMC crystal can be upgraded to very high purity over 99.9% and high yield over 85%.
Keywords
Dimethyl carbonate; Efficient Purification; melt crystallization; Sweating;
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