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- Hydroquinol could be recovered by means of extraction distillation and crystallization.The percent of recovery was 35% or so. 本文通过萃取、蒸馏、结晶等物理、化学方法对废料中的对苯二酚进行了回收，回收效率可达到35%25左右。
- Besides,the tower pressure should be under proper control for both azeotropy distillation and multiple-effects extraction distillation. 吸附法能耗低,把多效精馏和吸附进行热耦合,节能效果十分显著;
- A kind of optimal extraction agent is determined for extraction distillation of propane-propene process,based on the simulation results by the ASPEN PLUS software. 借助ASPEN PLUS软件,对丙烷?丙烯体系萃取精馏过程所用的溶剂进行了筛选,得到一种最佳的萃取剂。
- The energy consumption of azeotropy distillation was low but its energy-saving effects were inferior to that by multiple-effects extraction distillation. 节能型乙醇脱水制备无水乙醇的方法主要有4种:共沸精馏法、萃取精馏法、吸附法和膜分离法。
- Energy-saving ethanol dehydration techniques to produce dehydrated alcohol mainly included four measures as azeotropy distillation, extraction distillation, absorptive process and membrane separation. 摘要节能型乙醇脱水制备无水乙醇的方法主要有4种：共沸精馏法、萃取精馏法、吸附法和膜分离法。
- The energy consumption of absorptive process was low and the energy-saving effects of thermal coupling of extraction distillation and absorptive process were evidently satisfactory. 吸附法能耗低，把多效精馏和吸附进行热耦合，节能效果十分显著；
- Energy-saving ethanol dehydration techniques to produce dehydrated alcohol mainly included four measures as azeotropy distillation,extraction distillation,absorptive process and membrane separation. 节能型乙醇脱水制备无水乙醇的方法主要有4种:共沸精馏法、萃取精馏法、吸附法和膜分离法。
- This paper proposes a new mode of batch extractive distillation with two stills and two solvent inlets. 摘要提出了带有塔底回收釜及双溶剂进口的间歇萃取精馏操作方式。
- Bernd Heida,Ellerstadt.Method and device for extractive distillation[P].USP:20050199482,2005-09-15. 雷志刚;李成岳;季生福;等.;一种萃取精馏分离叔丁醇和水的方法[P]
- Simulation of an acrylonitrile extractive distillation column demonstrated the efficiency of the proposed method. 通过对某丙烯腈萃取精馏塔的稳态仿真，充分证实了这种模型化方法的优越性。
- The separation of azeotrope formed by methanol and DMC has been investigated by extractive distillation. 采用萃取精馏法对甲醇-碳酸二甲酯二元恒沸物进行了分离；
- The industrial application of a new benzene extractive distillation technology on reforming plant is presented. 摘要报导了苯抽提蒸馏技术新工艺在连续重整工业装置上的应用。
- A new process for separating propylene and propane in ethylene production using extractive distillation with aqueous ACN was put forward. 对乙烯生产工艺中丙烷和丙烯的分离进行了研究 ,提出以含水乙腈为萃取剂的萃取精馏新工艺。
- Taking water as the extractant, the purified cyclohexane with the purity of 99.91% can be obtained by the method of extractive distillation. 用水作萃取剂，采用萃取－精馏方法、得到相对含量为99.;91%25的产品。
- An extractant - screening method with a vapor-liquid equilibrium apparatus in the extractive distillation was introduced. 介绍了萃取精馏萃取剂的一种实验筛选方法,汽液平衡仪直接法。
- Also the normal distillation column and extractive distillation column are set up,and experiments are done to testify the whole distillation process... 还建立了普通精馏塔和萃取精馏塔小试实验装置,对全工艺流程逐塔进行热态研究,验证了其工业可行性。
- The separation of hexafluoropropylene oxide (HFPO) from hexafluoropropylene (HFP) by an extractive distillation has been researched. 本文对全氟丙烯(HFP)和全氟环氧丙烷(HFPO)混合物的分离进行了研究。
- This work investigates the improved relative volatility at infinite dilution due to the addition of salt for extractive distillation processes. 根据定标粒子理论基本方程的建立过程,导出了萃取精馏分离过程盐效应常数与加盐前后无限稀释相对挥发度之间的关系。
- A batch extractive distillation process with mixed solvents was studied experimentally in a middle-vessel batch distillation column. 摘要采用一个带有中间贮罐的间歇精馏实验塔，对混合溶剂间歇萃取精馏过程进行了实验研究。
- The success of an experiment with the water - acetic acid system showed that the method was practical and the extractants of extractive distillation were efficiently screened. 并对水-醋酸体系进行了实验,实验结果证明该方法是可行的,可以有效地对萃取精馏的萃取剂进行实验筛选。
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