azeotropic process

By using azeotropic distillation method to separate water from PGME and calculating with UNIFAC thermodynamic equation as state equation, the process simulation is conducted and corresponding technological coefficients are worked out.

采用恒沸精馏方法来分离水和丙二醇单甲醚，并以UNIFAC热力学方程作为物性计算方法进行了全流程模拟计算。

The study depicts the process of tetramethyl ammonium hydroxide pentahydrate and isopropyl alcohol azeotropic in the case of negative pressure 0.1 Mpa for 4h, and then dried by vacuum.

实验研究了在负压0.1MPa的情况下，五水四甲基氢氧化铵与异丙醇共沸4h，然后减压真空干燥得到四甲基氢氧化铵三水结晶化合物的过程。

This thesis also analyzes the temperature glide of some non-azeotropic refrigerants, and the characteristic of enthalpy change during the phase change process, which has much correlativity with the temperature glide.

本文第四章对非共沸混合工质的温度滑移特性，以及与温度滑移密切相关的焓变的线性特性进行了详细研究。

Therefore, butoxy in n_butanol can be adsorbed chemically on the surfaces of the tourmaline particles in the process of azeotropic distillation, which can effectively prevent the formation of liquid_bridge between the particles of tourmaline and avoid the hard aggregation in the drying process.

正丁醇中的丁氧基在共沸蒸馏过程中在电气石颗粒表面可取代羟基，产生化学吸附，能有效防止液桥的产生，阻止干燥过程中超细粉末的硬团聚。