甲醇液相氧化羰化合成碳酸二甲酯的色谱分析  

Gas Chromatographic Analysis of Dimethyl Carbonate Produced by Methanol Liquid Phase Oxo Process

作　　者：莫婉玲[1] 熊辉[1] 黄荣生[1] 李光兴[1] 

机构地区：[1]华中科技大学化学系,武汉430074

出　　处：《江西科学》2003年第1期15-17,共3页Jiangxi Science

摘　　要：建立了甲醇液相氧化羰化合成碳酸二甲酯生产工艺的色谱分析方法,探讨了该方法对各组分的线性相关性和准确性。实验结果表明,在选定的色谱条件下,可以对DMC合成和萃取精馏工段中的各组分含量快速、准确测定。对产物中微量有机氯的测定可至20×10-6,相对标准偏差<9%,回收率>98%,线性相关系数>0.998,符合微量分析的要求,可用于工业生产中在线分析。A gas chromatographic method used in the production of dimethyl carbonate by methanol liquid phase oxo process has been established. The linear relationship and accuracy for each component in this method were examined. The experiment results show that the method can be used for fast and accurate analysis of each product component in the preiod of synthesis and extractive distillation. The trace chlorobenzene of 20×10-6 order in dimethyl carbonate can be determined. The relative standard deviation coefficient is less than 9%, the recovery rate is greater than 98% and the linear correlation coefficient is greater than 0.998. It meets the requirement of microanalysis and can be used in industrial online analysis.

关 键 词：气相色谱 碳酸二甲酯 氯苯 工业分析 

分 类 号：O658[理学—分析化学]