The invention discloses a process for separating an acetonitrile-water azeotrope system by adopting ionic liquid extraction distillation. According to the process, an ionic liquid azeotropic agent is adopted, so that the relative volatility of acetonitrile in the acetonitrile-water system can be ...
Minimum consumption energy and the purity of ACN and water were set as the goals, and our sensitivity analysis and economic evaluation results showed that both ED and EDW were effective. As a result, LTTMs can be used in extractive distillation for azeotrope separation. 展开 ...
separationoftheazeotrope methanol—acetonitrilebybatchextractivedistillationandtheprocesswasstudied.Anilinewas selectedasthesuitablesolventonthebasisofthelawofsimilarityanddissolvability,combined withVLEsimulationbyChemCADsoftwareandtheVLEexperiments.Theresultsshowthat anilineasthesolventcouldbreaktheazeotropeandtheeffectsof...
From the results, the azeotrope is eliminated by DMSO by the means of improving their relative volatility. Hence, DMSO is an effective solvent for separating the acetonitrile + water binary azeotropic system. 展开 关键词: CONSISTENCY EXPRESSION ENERGY ...
According to the feature that composition of the azeotrope could be changed with the change of pressure, the method of pressure-swing distillation was applied to separate the azeotrope of acetonitrile-water and obtain high purity acetonitrile. A simulation model of pressure-swing distillation system wa...
The development of more sophisticated and sensitive analytical techniques that utilize acetonitrile due to its exceptional properties, such as low viscosity, high elution strength, and ability to form azeotropes, is positively impacting the market growth. Besides this, the widespread product application ...
The azeotrope of acetonitrile and water that contains cyanides is then mixed with caustic and the prior art ferrous sulfate. The ferrous sulfate reacts with the cyanides to produce ammonium ferrocyanide. This batch operation is then distilled with acetonitrile and water going overhead substantially ...
The present invention discloses a method for acetonitrile - water azeotrope salt batch extractive distillation methods. 该方法采用包括萃取精馏塔的精馏装置,间歇操作,以含氯化钙的乙二醇溶液为萃取剂,在常压下,首先进行全回流操作,然后在不同的温度和回流比的操作条件下,依次由萃取精馏塔顶采出乙腈产品,乙腈-水...
Comparison of pervaporation data with water–acetonitrile vapor–liquid equilibrium data confirmed that the membrane acted as a third phase to effectively break azeotropes.doi:10.1002/bkcs.11668Chaudhari, ShivshankarKwon, YongsungShon, MinYoungKorean Chemical Society...
A process for separating acrylonitrile from a mixture of acrylonitrile and acetonitrile includes providing a mixture of acrylonitrile and acetonitrile to a recovery column; contacting the mixture of acrylonitrile and acetonitrile with aqueous solvent to provide an acrylonitrile-water azeotrope; and separating...