Economically attractive technologies for plastic recycling
- Universidad Nacional Autonoma de Mexico, Mexico City (Mexico)
- Resinas y Materiales, Mexico City (Mexico)
This paper describes experiments investigating the depolymerization of polyethylene terephthalate (PET). Hydrolysis, glycolysis, and methanolysis reactions were studied. The use of the crude monomer to produce the plasticizer dioctyl terephthalate (DOTP) was also examined. Hydrolysis produced a terephthalic acid unsuitable for plasticizer. The glycolysis reaction product, bis(2-hydroxyethyl terphthalate), might be suitable without further purification for producing elastomeric copolyester. Three differently prepared products of the methanolysis reaction were use in plasticizer production. Economic analysis indicates the cost of recovered dimethyl terephthalate to be on the order of 60% of $800 per metric ton. 7 refs., 2 figs., 1 tab.
- OSTI ID:
- 430478
- Report Number(s):
- CONF-960730-; TRN: 96:006488-0010
- Resource Relation:
- Conference: 5. world congress of chemical engineering, San Diego, CA (United States), 14-18 Jul 1996; Other Information: PBD: 1996; Related Information: Is Part Of The 5th World Congress of chemical engineering: Technologies critical to a changing world. Volume IV: Advanced materials ethylene and polymer processing advanced ceramics processing; PB: 1059 p.
- Country of Publication:
- United States
- Language:
- English
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