| 相平衡原理在化工分离提纯中的应用 |
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| 引用本文： | 张坤玲,;张玮,;杨永,;李瑞珍.相平衡原理在化工分离提纯中的应用[J].石家庄职业技术学院学报,2014(4):26-29. |
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| 作者姓名： | 张坤玲 ;张玮 ;杨永 ;李瑞珍 |
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| 作者单位： | [1]石家庄职业技术学院化学工程系,河北石家庄050081; [2]石家庄职业技术学院学生工作部,河北石家庄050081 |
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| 摘 要： | 相平衡理论是选择分离方法、设计分离装置以及实现最佳操作的理论基础.在化工分离提纯时,相平衡原理的应用主要体现在：对单组分系统可采用超临界萃取方式,对二组分液态完全互溶系统的气液平衡可采用蒸馏和精馏的方法,对二组分液态完全不互溶系统的气液平衡可采用蒸汽蒸馏的方式,对二组分固态完全互溶系统可采用区域熔炼法.
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| 关 键 词： | 物理化学 相平衡 分离 提纯 萃取 |
Application of phase equilibrium principle in the chemical separation and purification |
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| Institution: | ZHANG Kun-ling, ZHANG Wei, YANG Yong, LI Rui-zhen (a. Department of Chemistry; b. Student Affairs Department, Shijiazhuang Vocational Technology Institute, Shijiazhuang, Hebei 050081, China) |
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| Abstract: | The phase equilibrium principle is the theoretical basis for choosing separation method, de signing separation device and realizing optimal operation. It is mainly applied to supereritical fluid extrac tion in the single component system, distillation and rectification in the gas-liquid equilibrium of two corn ponent intersoluble systems, steam distillation in the gas-liquid equilibrium of two component non-intersoluble system, and regional smelting in the two component intersoluble condensation of solid states. |
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| Keywords: | physical chemistry phase equilibrium separation purification extraction |
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