• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Hazardous Materials >Removal of brominated flame retardant from electrical and electronic waste plastic by solvothermal technique
【24h】

Removal of brominated flame retardant from electrical and electronic waste plastic by solvothermal technique

机译：溶剂热法从电气和电子废塑料中去除溴化阻燃剂

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Brominated flame retardants (BFRs) in electrical and electronic (E&E) waste plastic are toxic, bioaccu-mulative and recalcitrant. In the present study, tetrabromobisphenol A (TBBPA) contained in this type of plastic was tentatively subjected to solvothermal treatment so as to obtain bromine-free plastic. Methanol, ethanol and isopropanol were examined as solvents for solvothermal treatment and it was found that methanol was the optimal solvent for TBBPA removal. The optimum temperature, time and liquid to solid ratio for solvothermal treatment to remove TBBPA were 90 ℃, 2 h and 15:1, respectively. After the treatment with various alcohol solvents, it was found that TBBPA was finally transferred into the solvents and bromine in the extract was debrominated catalyzed by metallic copper. Bisphenol A and cuprous bromide were the main products after debromination. The morphology and FTIR properties of the plastic were generally unchanged after the solvothermal treatment indicating that the structure of the plastic maintained after the process. This work provides a clean and applicable process for BFRs-containing plastic disposal.
机译：电气和电子（E＆E）废塑料中的溴化阻燃剂（BFR）具有毒性，生物累积性和顽强性。在本研究中，对该塑料中包含的四溴双酚A（TBBPA）进行了溶剂热处理，从而获得了无溴塑料。研究了甲醇，乙醇和异丙醇作为溶剂热处理的溶剂，发现甲醇是去除TBBPA的最佳溶剂。溶剂热处理去除TBBPA的最佳温度，时间和液固比分别为90℃，2 h和15：1。用各种醇溶剂处理后，发现TBBPA最终被转移到溶剂中，提取液中的溴被金属铜催化脱溴。脱溴后的主要产物是双酚A和溴化亚铜。溶剂热处理后，塑料的形态和FTIR特性通常保持不变，这表明加工后塑料的结构得以保持。这项工作为含BFRs的塑料处理提供了一个清洁且适用的过程。

著录项

  • 来源
    《Journal of Hazardous Materials》 |2012年第30期|p.193-198|共6页
  • 作者

    Cong-Cong Zhang; Fu-Shen Zhang;

  • 作者单位

    Research Center For Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China;

    Research Center For Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    WEEE; brominated flame retardant; solvothermal process; debromination;

    机译：WEEE;溴化阻燃剂;溶剂热过程脱溴;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号