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SEPARATING METHOD OF ONLY ETHYLBENZENE WITH HIGH PURITY IN XYLENE THROUGH EXTRACTIVE DISTILLATION USING AN EXTRACTING AGENT WITH IMPROVED SEPARATION PERFORMANCE
SEPARATING METHOD OF ONLY ETHYLBENZENE WITH HIGH PURITY IN XYLENE THROUGH EXTRACTIVE DISTILLATION USING AN EXTRACTING AGENT WITH IMPROVED SEPARATION PERFORMANCE
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机译:分离性能提高的萃取剂通过萃取精馏分离高纯二甲苯的方法
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摘要
PURPOSE: A separating method of only ethylbenzene with high purity in xylene is provided to use an environmentally-friendly extract with a small selectivity, and to obtain high selectivity, low cost, low toxicity, low inflammability, and the addition of high value.;CONSTITUTION: A selectively separating method of only ethylbenzene comprises a step of adding an extracting agent into an ethylbenzene-containing xylene mixture, and selectively separating ethylbenzene through distillation. The extracting agent is propyl butanoate. The input ratio of the ethylbenzene-containing mixed xylene and the propyl butanoate is 1:4-1:16. The temperature of the distillation is 175-185°C. The extracting agent is propyl butanoate, or a mixture of butanoate and acetophenone.;COPYRIGHT KIPO 2013
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