| 氯代有机物结构性质对还原脱氯速率的影响 |
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| 引用本文： | 吴德礼,马鲁铭,王铮.氯代有机物结构性质对还原脱氯速率的影响[J].工业用水与废水,2005,36(1):22-25. |
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| 作者姓名： | 吴德礼 马鲁铭 王铮 |
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| 作者单位： | 同济大学,环境科学与工程学院城市污染控制国家工程研究中心,上海,200092;同济大学,环境科学与工程学院城市污染控制国家工程研究中心,上海,200092;同济大学,环境科学与工程学院城市污染控制国家工程研究中心,上海,200092 |
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| 基金项目： | 国家高技术研究发展专项经费资助(2002AA601270) |
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| 摘 要： | 研究了氯代甲烷系列和氯代乙烷系列的多种氯代烷烃在铁、铜二相金属体系中的还原脱氯反应,分析了氯代有机物结构性质对还原脱氯反应的影响和规律性。结果表明氯代有机物的结构性质对还原脱氯速率有着明显影响,有机物氯化程度越高,脱氯速率越快,四氯化碳经过1h后脱氯率可达50.7%,而二氯甲烷脱氯则很慢,在氯代乙烷系列中脱氯速率最快的是1,1,1-三氯乙烷。电子直接转移是氯代烷烃还原脱氯的主要途径。
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| 关 键 词： | 氯代烷烃 还原脱氯 催化还原 零价铁 |
| 文章编号： | 1009-2455(2005)01-0022-04 |
| 修稿时间： | 2004年3月1日 |
Effects of Structural Characteristics of Chloroorganics on Reductive Dechlorination Rate |
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| WU De-li,MA Lu-ming,WANG Zheng.Effects of Structural Characteristics of Chloroorganics on Reductive Dechlorination Rate[J].Industrial Water & Wastewater,2005,36(1):22-25. |
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| Authors: | WU De-li MA Lu-ming WANG Zheng |
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| Abstract: | A study was made of the reductive dechlorination of several chloralkanes that belong to chloromethane series or chloroethane series in a Fe/Cu bimetal system. The effects of the structural characteristics of chloroorganics on the reductive dechlorination reaction as well as the rule thereof were analyzed. The results show that the structural characteristics of chloroorganics have a very obvious influence on the reductive dechlorination rate, and that the better organics are chlorinated, the faster the dechlorination will be. The dechlorination rate of tetrachloromethane can reach 50.7% in 1 hour; while the dechlorination of methane dichloride is very slow. In chloroethane series, the dechlorination rate of 1,1,1-trichloroethane, is the fastest. The main way for the reductive dechlorination of chloralkane is the direct transfer of electron. |
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| Keywords: | chloralkane reductive dechlorination catalytic reduction Fe0 |
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