Electrodialysis for NaCl/EG solution using ion-exchange membranes |
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| Authors: | Tomohito Kameda Shoko Fukushima Chisato Shoji Guido Grause Toshiaki Yoshioka |
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| Institution: | 1. Graduate School of Environmental Studies, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai, 980-8579, Japan
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| Abstract: | A new concept for the recycling of poly(vinyl chloride) (PVC) has been introduced, including the dehydrochlorination of PVC in ethylene glycol (EG) with NaOH as a reactant, the subsequent separation of NaCl from EG by electrodialysis, and the recovery of chlorine for the synthesis of new PVC. In this work, the separation of NaCl by electrodialysis was investigated. About 98 % of the salt were recovered from EG, with less than 10 % of the EG permeating the membranes after 5 h. |
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