尿素醇解合成碳酸二甲酯过程中离子液体催化剂的含量分析  

Quantitative analysis of ionic liquid catalyst for synthesis of dimethyl carbonate by alcoholysis of urea

作　　者：范明明 王辉 张萍波 倪邦庆 

机构地区：[1]江南大学化学与材料工程学院,无锡214122

出　　处：《分析试验室》2012年第6期81-83,共3页Chinese Journal of Analysis Laboratory

基　　金：高等学校博士学科点专项科研基金项目(20100093120003);中央高校基本科研业务费专项资金(JUSRP211A07)资助

摘　　要：提出了尿素醇解合成碳酸二甲酯体系中1-甲基-3-丁基咪唑氯化锌离子液体催化剂的含量分析方法。采用紫外光谱法测定了离子液体催化剂的最大吸收波长,并建立了标准工作曲线,其线性相关系数为0.9986,方法的相对标准偏差RSD为2.5%,回收率为98.7%～102.4%。A UV spectrophotometric method for the quantitative analysis of ionic liquid 1-butyl-3-methylimidazolium chlorozincate synthesis of dimethyl carbonate by alcoholysis of urea was developed,and the maximum absorption wavelength of ionic liquid catalyst was determined.The standard working curve for the ionic liquid catalyst was established,and a good linear relationship was observed with the correlation coefficients of 0.9986.The relative standard deviation（RSD） was 2.5%,and the recoveries were 98.7%~102.4%.

关 键 词：尿素 碳酸二甲酯 离子液体 紫外光谱 

分 类 号：O657.3[理学—分析化学]