Degradation of brominated flame retardant in computer housing plastic by supercritical fluids
文献类型：期刊论文
| 作者 | Wang, Yanmin ; Zhang, Fu-Shen |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2012 |
| 卷号 | 205页码:156－163 |
| 关键词 | Hazardous waste Supercritical fluid Brominated flame retardant Debromination Chemical recycling |
| ISSN号 | 0304-3894 |
| 中文摘要 | The degradation process of brominated flame retardant (BFR) and BFR-containing waste computer housing plastic in various supercritical fluids (water, methanol, isopropanol and acetone) was investigated. The results showed that the debromination and degradation efficiencies, final products were greatly affected by the solvent type. Among the four tested solvents, isopropanol was the most suitable solvent for the recovery of oil from BFR-containing plastic for its (1) excellent debromination effectiveness (debromination efficiency 95.7%), (2) high oil production (60.0%) and (3) mild temperature and pressure requirements. However, in this case, the removed bromine mostly existed in the oil. Introduction of KOH into the sc-isopropanol could capture almost all the inorganic bromine from the oil thus bromine-free oil could be obtained. Furthermore, KOH could enhance the depolymerization of the plastic. The obtained oil mainly consisted of single- and duplicate-ringed aromatic compounds in a carbon range of C9-C17, which had alkyl substituents or aliphatic bridges, such as butylbenzene, (3-methylbutyl)-benzene, 1,1'-(1,3-propanediyl)bis benzene. Phenol, alkyl phenols and esters were the major oxygen-containing compounds in the oil. This study provides an efficient approach for debromination and simultaneous recovering valuable chemicals from BFR-containing plastic in e-waste. (C) 2011 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000301208700022 |
| 公开日期 | 2014-11-05 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7937]  |
| 专题 | 生态环境研究中心_环境纳米材料实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Yanmin,Zhang, Fu-Shen. Degradation of brominated flame retardant in computer housing plastic by supercritical fluids[J]. JOURNAL OF HAZARDOUS MATERIALS,2012,205:156－163. |
| APA | Wang, Yanmin,&Zhang, Fu-Shen.(2012).Degradation of brominated flame retardant in computer housing plastic by supercritical fluids.JOURNAL OF HAZARDOUS MATERIALS,205,156－163. |
| MLA | Wang, Yanmin,et al."Degradation of brominated flame retardant in computer housing plastic by supercritical fluids".JOURNAL OF HAZARDOUS MATERIALS 205(2012):156－163. |
入库方式： OAI收割
来源：生态环境研究中心
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