GC analysis of product from methanol oxidative carbonylation to dimethyl carbonate

The contents of dimethyl carbonate, methanol, water and methyl acetate in the product of methanol oxidative carbonylation to dimethyl carbonate (DMC) were analyzed by GC with Chromosorb-101 as the stationary phase. The influences of column temperature and flow rates of carrier gas on resolution were studied and proper conditions of analysis were determined. The corrected area normalization method was used in the quantitative analysis. The method is convenient and fast with good accuracy and repeatability.