| Pd/Fe双金属对1,2,4-三氯苯的催化脱氯 |
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| 引用本文： | 谢凝子,邱罡,张二华,陈宜菲,吴双桃,陈少瑾. Pd/Fe双金属对1,2,4-三氯苯的催化脱氯[J]. 广东化工, 2005, 32(11): 54-56 |
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| 作者姓名： | 谢凝子 邱罡 张二华 陈宜菲 吴双桃 陈少瑾 |
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| 作者单位： | 韩山师范学院环境化学应用技术研究所,广东,潮州,521041;韩山师范学院环境化学应用技术研究所,广东,潮州,521041;韩山师范学院环境化学应用技术研究所,广东,潮州,521041;韩山师范学院环境化学应用技术研究所,广东,潮州,521041;韩山师范学院环境化学应用技术研究所,广东,潮州,521041;韩山师范学院环境化学应用技术研究所,广东,潮州,521041 |
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| 基金项目： | 广东省科技攻关项目;广东省自然科学基金;中国科学院资助项目 |
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| 摘 要： | 采用Pd/Fe双金属体系对1,2,4-三氯苯（1,2,4-TCB）进行了快速催化还原脱氯的研究.结果表明,在钯的催化作用下,零价铁对1,2,4-TCB有较好的还原脱氯效率.当Pd/Fe双金属的钯化氯为0.06%时,催化剂用量为1g/40mL,反应1h后TCB的脱氯率可达99%.反应速率随钯化氯的提高而增加.反应在Pd/Fe表面进行,符合准一级反应,反应速率常数为0.0837min-1.TCB在催化脱氯的过程中先脱氯成为DCB,再依次脱氯为氯苯和苯.
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| 关 键 词： | 钯/铁双金属 还原脱氯 1 2 4-三氯苯 |
| 修稿时间： | 2005-07-08 |
Catalytic Dechlorination of 1,2,4-trichlorobenzene by Pd/Fe Bimetal |
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| Xie Ningzi,Qiu Gang,Zhang Erhua,Chen Yifei,Wu Shuangtao,Chen Shaojin. Catalytic Dechlorination of 1,2,4-trichlorobenzene by Pd/Fe Bimetal[J]. Guangdong Chemical Industry, 2005, 32(11): 54-56 |
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| Authors: | Xie Ningzi Qiu Gang Zhang Erhua Chen Yifei Wu Shuangtao Chen Shaojin |
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| Abstract: | Pd/Fe bimetal was synthesized and used to dechlorination treatment of 1,2,4-trichlorobenzene.Batch experiments demonstrated that the Pd/Fe bimetallic particles can effectively dechlorinate 1,2,4-TCB.Dechlorination efficiency accounted for more than 99% at Pd weight ratio 0.06% and metal to solution ratio about 1g/40mL in 60 min.Dechlorination ratios were affected by Pd ratio(Pd to Fe).The reaction took place on the surface of the bimetal in a pseudo-first-order reaction, and the rate constant was 0.0837min~(-1).1,2-DCB and 1,4-DCB represent stable partially dechlorination intermediates,then dechlorinate to chlorobenzene,and finally benzene. |
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| Keywords: | Pd/Fe bimetal reduction dechlorination 1 2 3-trichlorobenzene |
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