A novel process for detoxification of BERs in waste PCBs

摘要：

　　Waste printed circuit boards (WPCBs) contain high amount of brominated flame retardants that may bring a series of environmental and health problems.In the present study,an effective and environmental-friendly process using sub-and supercritical water (sub/SCW) to simultaneously degrade brominated epoxy resin and recover metals from WPCBs was developed.The results showed that brominated epoxy resins (BERs) can be quickly decomposed under SCW condition.Most of the bromine was changed into HBr and enriched in water.Meanwhile,bromine-free oil was obtained of which the main compositions were phenol and 4-(1-methylethyl)-phenol.This study provides an efficient and green approach for WPCBs recycling.

关键词： Waste printed circuit boards Brominated epoxy resins Debromination Supercritical water

作者: Mingfei Xing Fushen Zhang

作者单位: Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China

会议类型: 国际会议

会议名称: The Seventh International Conference on Waste Management and Technology(第七届固体废物管理与技术国际会议(ICWMT7))

会议地点: 北京

会议语种:英文

页码: 491-494

在线出版日期: 2012-09-05（万方平台首次上网日期，不代表论文的发表时间）