Title: Synthesis of methyl carbamate through alcoholysis of urea
Abstract: The methyl carbamate(MC) is synthetized with urea and methanol as raw material without any catalyst,and purified by extraction and recrystallization.The influences of reaction temperature,reaction time,urea and methanol of mole ratio on the urea conversion were discussed through the orthogonal experiments.When reaction temperature is 160 ℃,reaction time is 2 h,n(urea)∶n(methanol)=1∶7,urea conversion is highest for 53.1%.The conversion of urea was improved to79.6% and 85.2% through the indirect rule out ammonia method.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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