期刊
ENVIRONMENTAL CHEMISTRY LETTERS
卷 12, 期 2, 页码 347-352出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s10311-014-0452-8
关键词
Electrical and electronic waste; Solvothermal technique; Brominated flame retardant; Tetrabromobisphenol A; Chemical recycling; Solvent extraction
资金
- National Natural Science Foundation of China [21077120, 51278485]
- China Post-doctoral Science Foundation [2013M530750]
- Science Promotion Program of Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences [YSW2013B05]
Brominated flame retardants contained in electrical and electronic waste plastic are toxic to both humans and the environment. Most disposal technologies for brominated flame retardants are environmentally unfriendly. Here, a novel solvothermal process was designed to recover tetrabromobisphenol A, a typical brominated flame retardant, from waste computer housing plastic. The plastic waste was treated by the solvothermal process followed by vacuum rotary evaporation. Results show a tetrabromobisphenol A recovery efficiency of 78.9 %, and a purity of 95.6 %. The stability of tetrabromobisphenol A during the solvothermal process was confirmed by nuclear magnetic resonance. Kinetics showed that diffusion across the polymer layer controlled recovery. We conclude that the novel solvothermal process is a promising green way to recover tetrabromobisphenol A from electrical and electronic waste plastic.
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