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http://dx.doi.org/10.7473/EC.2012.47.2.96

Chemical Recycling Technology from Polyester Wastes  

Han, Myung-Wan (Department of Chemical Engineering, Chungnam National University)
Kang, Kyung-Suk (Siontech)
Song, Jae-Kyung (Siontech)
Publication Information
Elastomers and Composites / v.47, no.2, 2012 , pp. 96-103 More about this Journal
Abstract
This paper reviews recent technologies for recycling poly (ethylene terephthalate) wastes. Wide application and non-biodegradability of the PET creates huge amounts of waste and disposal, leading to an environmental problem and economic loss. Chemical recycling can be a promising technology to deal with these problems by converting the waste into useful feedstock material for polyester production. Chemical recycling of polyethylene terephthalate are processes where the PET polymer chain is destructed by the impact of glycol (MEG) causing glycolysis, methanol causing methanolysis or water causing hydrolysis. After intensive purification polyester oligomers or the monomers MEG, dimethyl telephthalate (DMT) or purified terephthalic acid (PTA) are received which are re-used to produce polyester products.
Keywords
polyester wastes; feedstock recycling;
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