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环境化学  2015 

缺氧环境下无定形FeS对六六六的转化动力学

Keywords: FeS,六六六,转化产物,转化路径,反应动力学,反应机理

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Abstract:

采用批处理实验方法,在缺氧还原的环境下对无定形FeS转化六六六的动力学进行了研究,结果表明,无定形FeS水溶液体系(pH值8.30)可以将六六六的γ异构体林丹转化为低氯化合物三氯苯、二氯苯和氯苯,并且产物的形成有异构体选择性;检测到的中间产物为五氯环己烯、四氯环己烯和二氯环己二烯,并提出相应的转化路径和反应机理,以说明溶液中的动态变化过程;反应动力学遵从准一级速率反应;反应机理推测为去氯化氢反应和双氯消除反应.

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