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In relation to this article, we declare that there is no conflict of interest.
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Received April 18, 2021
Accepted August 8, 2021
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Purification of durene from the mixture of durene and isodurene by stripping crystallization

1Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 333, Taiwan 2Department of Urology, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
shiau@mail.cgu.edu.tw
Korean Journal of Chemical Engineering, December 2021, 38(12), 2510-2518(9), 10.1007/s11814-021-0920-3
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Abstract

Stripping crystallization (SC) is introduced in this work to purify durene from the mixture consisting of isodurene and durene. SC is a new technology which combines melt crystallization and vaporization via a series of three-phase transformations at low pressures during the cooling process. The three-phase transformation conditions for a liquid mixture determined by the thermodynamic calculations were adopted to direct the batch SC experiments. A model based on the mass and energy balances was proposed to determine the variation of the amount of remaining liquid, crystallized durene product and produced vapor during SC. The experimental yield and purity of the final durene product obtained from the experiments were compared with those predicted by the model.

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