Chemical Recovery of Useful Chemicals from Polyester (PET) Waste for Resource Conservation: A Survey of State of the Art |
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| Authors: | Cesare Lorenzetti Piero Manaresi Corrado Berti Giancarlo Barbiroli |
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| Institution: | (1) Dipartimento di Discipline Economico Aziendali, Area Tecnologia e Valorizzazione delle Risorse, Università di Bologna, Piazza Scaravilli 2, 40126 Bologna, Italy;(2) Dipartimento di Chimica Applicata e Scienza dei Materiali, Università di Bologna, Via Risorgimento 2, Bologna, Italy |
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| Abstract: | In this paper we present the main technologies developed over the last decades on chemical recycle of PET from a practical
and economical point of view. We show details of plants used to carry out solvolitic reactions emphasising steps of purification,
which are sometimes not considered when discussing chemical, recycle but which, in fact, are the key feasibility factors.
The recycling or modification of PET to obtain monomers and other useful chemicals as intermediates and additives is carefully
considered. |
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| Keywords: | PET polyesters chemical recycle depolymerisation DMT Therephthalic acid |
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