Separation of methanol tetrahydrofuran water system by extractive distillation and phase separation with salt has been studied. 研究了萃取精馏技术和加盐分相技术在甲醇四氢呋喃水体系分离中的应用。
Described theory of static headspace gas chromatography by determination of ethanol and benzene in water. Effect of gas-liquid phase ratio, distribution constant, equilibrium temperature, equilibrium time and salt on sensitivity of static headspace gas chromatography were discussed. 以苯和乙醇的水溶液为对象,系统研究了气液相比、分配常数、平衡温度、平衡时间和无机盐等因素对顶空分析的影响。
In water / Polyoxyethylene4lauryl ether / paraffinic oil system, we adjust the phase inversion temperature through changing temperature and inorganic salt concentration. In addition, the formation conditions and stability conditions of W / O emulsions were studied. 在水/十二烷基聚氧乙烯(4)醚/白油体系中,通过温度和无机盐浓度对相转变温度的调控,研究油包水乳液的形成条件及稳定条件。