Acetolysis of waste polyethylene terephthalate for upcycling and life-cycle assessment study
University of Science and Technology of China · CAS Key Laboratory of Urban Pollutant Conversion · +2 more institutions
Abstract
To reduce environmental pollution and reliance on fossil resources, polyethylene terephthalate as the most consumed synthetic polyester needs to be recycled effectively. However, the existing recycling methods cannot process colored or blended polyethylene terephthalate materials for upcycling. Here we report a new efficient method for acetolysis of waste polyethylene terephthalate into terephthalic acid and ethylene glycol diacetate in acetic acid. Since acetic acid can dissolve or decompose other components such as dyes, additives, blends, etc., Terephthalic acid can be crystallized out in a high-purity form. In addition, Ethylene glycol diacetate can be hydrolyzed to ethylene glycol or directly polymerized…
Citation impact
- FWCI
- 12.92
- Percentile
- 100%
- References
- 44
Authors
6- YPYuantao Peng
University of Science and Technology of China, CAS Key Laboratory of Urban Pollutant Conversion
- JYJie Yang
University of Science and Technology of China, CAS Key Laboratory of Urban Pollutant Conversion
- CDChen‐Qiang Deng
University of Science and Technology of China, CAS Key Laboratory of Urban Pollutant Conversion
- JDJin Deng
University of Science and Technology of China, CAS Key Laboratory of Urban Pollutant Conversion
- LSLi ShenCorresponding
Utrecht University, Institute for Sustainable Development
Topics & keywords
- Terephthalic acid
- Polyethylene terephthalate
- Polyester
- Acetic acid
- Materials science
- Polyethylene glycol
- Dimethyl terephthalate
- Ethylene
- Responsible consumption and production