Recovery of triphenyl phosphate from waste printed circuit boards by solvothermal process
文献类型：期刊论文
| 作者 | Zhang, Cong-Cong ; Zhang, Fu-Shen |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2014 |
| 卷号 | 240期号:1页码:10-15 |
| 关键词 | E-waste Solvothermal technique PFRs TPPO Kinetics analysis |
| ISSN号 | 1385-8947 |
| 中文摘要 | Organophosphorus flame retardants (PFRs) have been largely used in waste printed circuit boards (PCBs) because of the regulation of brominated flame retardants (BFRs) in recent years. In the present study, triphenyl phosphate (TPPO), a typical PFR, contained in waste PCBs was tentatively subjected to solvothermal treatment in order for efficient recycling of this type of valuable resource. Experimental results showed that the optimum operation temperature, time and liquid to solid ratio for TPPO removal were 90 degrees C, 120 min and 10:1, respectively. After solvothermal treatment, TPPO was transferred into the solvents and solid TPPO powder was easily recovered through vacuum rotary evaporation. The TPPO recovery efficiency reached 84.4% in a purity of 93.4% and dephosphorization efficiency of waste PCBs reached 97.3%. Shrinking core model (SCM) indicated that both interface transfer and internal diffusion affected the recovery rate of TPPO in the solvothermal process. Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) profiles of the recycled TPPO were in good agreement with TPPO standard material indicating that the structure of the recycled TPPO maintained after the recovery process. This work provides a clean and applicable process for PFRs recovery from waste PCBs. (C) 2013 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000331782500002 |
| 公开日期 | 2015-03-24 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9298]  |
| 专题 | 生态环境研究中心_固体废弃物处理与资源化实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Cong-Cong,Zhang, Fu-Shen. Recovery of triphenyl phosphate from waste printed circuit boards by solvothermal process[J]. CHEMICAL ENGINEERING JOURNAL,2014,240(1):10-15. |
| APA | Zhang, Cong-Cong,&Zhang, Fu-Shen.(2014).Recovery of triphenyl phosphate from waste printed circuit boards by solvothermal process.CHEMICAL ENGINEERING JOURNAL,240(1),10-15. |
| MLA | Zhang, Cong-Cong,et al."Recovery of triphenyl phosphate from waste printed circuit boards by solvothermal process".CHEMICAL ENGINEERING JOURNAL 240.1(2014):10-15. |
入库方式： OAI收割
来源：生态环境研究中心
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