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The application of ultrasound in the determination of isobaric vapour-liquid-liquid equilibrium data

机译:超声在确定等压蒸气-液-液平衡数据中的应用

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摘要

The application of ultrasound is shown to be an excellent method to transform the dynamic instruments for the determination of vapour-liquid equilibrium (VLE) data into useful equipment for the determination of isobaric vapour-liquid-liquid equilibrium (VLLE) data. After a review of the few experimental isobaric VLLE data published in literature and the analysis of the reasons why conventional VLE instruments are not useful for systems of limited miscibility in the liquid phase, the positive effects of applying ultrasound are shown. The best place and position of the ultrasonic homogenizer in the instrument is discussed. Finally, experimental VLLE data obtained with the resultant instrument are presented for five ternary systems at 101.3 kPa: water+ethanol+ethyl acetate, water+ethanol+1-butanol, water+2-propanone+2-butanone, water+ethanol+diethylether and water+1-butanol+n-butylacetate. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 33]
机译:超声的应用被证明是将测定汽液平衡(VLE)数据的动态仪器转变为测定等压汽液液平衡(VLLE)数据的有用设备的极好方法。在回顾了文献中发表的一些实验性等压VLLE数据并分析了为什么传统VLE仪器无法用于液相中混溶性有限的系统的原因后,显示了施加超声的积极效果。讨论了超声均质器在仪器中的最佳位置。最后,给出了用所得仪器获得的实验VLLE数据在101.3 kPa下的五个三元体系:水+乙醇+乙酸乙酯,水+乙醇+ 1-丁醇,水+ 2-丙酮+ 2-丁酮,水+乙醇+二乙醚和水+ 1-丁醇+乙酸正丁酯。 (C)2000 Elsevier Science B.V.保留所有权利。 [参考:33]

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