Co-processing of DVDs and CDs with vegetable cooking oil by thermal degradation |
| |
Authors: | Nona Merry M. Mitan Mihai Brebu Thallada Bhaskar Akinori Muto Yusaku Sakata Mitsuo Kaji |
| |
Affiliation: | (1) Department of Applied Chemistry, Faculty of Engineering, Okayama University, 3-1-1 Tsushima Naka, Okayama 700-8530, Japan;(2) Nichiyo Engineering Co., Toda, Saitama, Japan;(3) Petru Poni Institute of Macromolecular Chemistry, Iasi, Romania |
| |
Abstract: | Waste DVDs and CDs were thermally degraded at 450°C by a semibatch process. In total, 40–50 wt% was converted into liquid product that consisted of phenol derivatives (∼75 wt%), bisphenol (∼10 wt%) and its derivatives, and small amounts of aromatic hydrocarbons such as benzene, toluene, ethylbenzene, dimethylbenzene, methylethylbenzene, diethylbenzene, and methylisopropyl benzene. Degradation of the polycarbonate support from DVDs and CDs was enhanced by coprocessing with vegetable cooking oil, the degradation of which gave a homologue series of hydrocarbons and organic acids with up to 25 and 18 atoms of carbon, respectively. Silver from the reflective coating on DVDs and CDs remained in the solid residue, its concentration increasing about 2.5 times compared to that of the original disks. |
| |
Keywords: | DVD CD Polycarbonate Vegetable cooking oil Coprocessing Thermal degradation |
本文献已被 SpringerLink 等数据库收录! |
|