per pass

The reaction was intermittent. The yield per pass of o methyl benzoic acid is up to 47% with a total yield of up to 62 36%.

试验为kg级工业模拟中试试验，反应为间歇式反应，原料邻二甲苯一次投料量为4.2kg，目的产物为邻甲基苯甲酸，单程收率可达47%，总收率可达62.36%。

The preliminary study of the hydrolytic equilibrium of 2-methyl-2,5-dimethoxy-2,5-dihydrofuran was reported in this paper. The hydrolytic equilibrium constant was determined. The study has been provided theoretical basis for selection of suitable hydrolytic reaction conditions and for raising equilibrium conversion per pass.

本文对2-甲基-2,5-二甲氧基-2,5-二氢呋喃的水解平衡进行了初步研究，测定了水解平衡常数，为选择合适的水解反应条件，提高平衡转化率提供了理论依据。