METHOD FOR HIGH PURITY SELECTIVE SEPERATION ETHYLBENZENE FROM MIXED XYLENE WITH EXTRACTING DISTILLATION

摘要

The present invention separates mixed xylene, ethyl benzene in the extractive distillation using a selective separating the high purity ethylbenzene relates to a method that, by adding an extraction agent to the mixed xylenes, including ethylbenzene by distillation A method for selectively separating a mixture of xylene and ethyl benzene, the extract zero or propyl butanoate and propyl butanoate acetonitrile using the mixture to page discussion discloses a method for selectively separating a mixture of xylene and ethylbenzene, that selection resulting extract was used in the conventional process is also zero, the process overcomes the cost and environmental issues, more stable and less loss of selection by providing an environment-friendly extraction agent also having a high selectivity, low cost, low toxicity, and a low flammability and a high value-added feature of the improved process has gachiseong mixture of xylene and ethyl benzene to provide a method for selective separation.