CuCl2-catalyzed PCDD/Fs Formation from Catechol
Polychlorinated dibenzo-p-dioxins（PCDDs) and dibenzo-p-furans（PCDFs) are ubiquitous environmental contaminants，which persist and bioaccumulate through the food chain. Formation mechanisms of PCDD/Fs in thermal processes are rather well-documented in the literature. Precursor pathways and de novo synthesis are considered as two general formation pathways. Metal-catalyzed formation from phenol precursors is one of the widely studied precursor pathways. However，most studies of the phenol condensation pathway have been performed using highly chlorinated phenols，such as pentachlorophenol. As existed naturally，catechol is structurally simple，with two adjacent hydroxies attached to the molecular backbone，and can usually be extracted from passion flowers and fruits. In this research，we investigate PCDD/Fs in CuCl2-catalyzed formation from catechol at 300 ℃. PCDD/F congener patterns in the formation are shown in Figure 1.
邻苯二酚 氯化铜 环境污染物 二苯并呋喃
Jiajia Wu Minghui Zheng Yamei Hui Bing Zhang
Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing,100085
国内会议
大连
英文
89
2008-11-05（万方平台首次上网日期，不代表论文的发表时间）