Kinetics of Glycolysis of Poly (ethylene Terephthalate) by Shrinking-Core Model

Abstract:

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Poly (ethylene terephthalate) (PET) wastes were depolymerised using excess ethylene glycol (EG) in the presence of zinc acetate as transesterificaion catalyst. Influences of particle size, reaction temperature, weight ratio of ethylene glycol (EG) to PET and weight ratio of catalyst to PET on the yield of bis(hydroxyethyl terephthalate)(BHET) were investigated. The kinetics of glycolysis of PET in EG could be interpreted by the shrinking-core model of chemical reaction control, the activation energy of the glycolysis was 133 KJ/mol. The glycolysis product was analyzed and identified by FTIR and Element analysis.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

627-631

DOI:

10.4028/www.scientific.net/AMR.233-235.627

Citation:

F. F. Chen et al., "Kinetics of Glycolysis of Poly (ethylene Terephthalate) by Shrinking-Core Model", Advanced Materials Research, Vols. 233-235, pp. 627-631, 2011

Online since:

May 2011

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$35.00

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