| 固体酸SO4^2-／TiO2催化溴氨酸Ullmann缩合反应 |
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| 引用本文： | 王镝,费学宁,郝亚超,杨少斌. 固体酸SO4^2-／TiO2催化溴氨酸Ullmann缩合反应[J]. 天津城市建设学院学报, 2009, 0(2): 111-113 |
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| 作者姓名： | 王镝 费学宁 郝亚超 杨少斌 |
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| 作者单位： | 天津城市建设学院环境与市政工程系,天津300384 |
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| 摘 要： | 采用SO4^2-／TiO2代替传统工艺中的硫酸水溶液，对溴氨酸进行ullmann缩合反应．考察了反应温度、反应时间、催化剂投加量等因素对反应收率的影响．结果表明：在2．02g溴氨酸、0．95g铜粉、80mL蒸馏水的体系中，SO4^2-／TiO2用量为1．00g，在70℃下反应90min，溴氨酸缩合产物收率可达91％以上．催化剂可回收，用于光催化氧化溴氨酸缩舍反应产生的废水．
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| 关 键 词： | 同体酸催化 改性TiO2 Ullmann缩合 溴氨酸溶液 降解 |
Ullmann Condensation Reaction of Bromamine Acid Using Solid Acid SO4^2-/TiO2 as Catalyst |
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| WANG Di,FEI Xue-ning,HAO Ya-chao,YANG Shao-bin. Ullmann Condensation Reaction of Bromamine Acid Using Solid Acid SO4^2-/TiO2 as Catalyst[J]. Journal of Tianjin Institute of Urban Construction, 2009, 0(2): 111-113 |
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| Authors: | WANG Di FEI Xue-ning HAO Ya-chao YANG Shao-bin |
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| Affiliation: | (Department of Environmental and Municipal Engineering, TIUC, Tianjin 300384, China) |
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| Abstract: | The catalytic system of sulfuric acid used in Ullmann condensation reaction of bromamine acid is replaced by a solid superacid SO4^2-/TiO2. The effect of the reaction temperature, reaction time and catalyst dosage on the yield of the condensation product is investigated. The results show that in the system of 2.020 g bromamine acid, 0.950 g copper powder and 80 mL H2O, the yield of the condensation product can reach more than 91% in 1.000 g SO4^2-/TiO2 at 70℃ after 90 min. The catalyst can be reused, in the degradation of the wastewater produced in bromamine acid condensation. |
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| Keywords: | solid acid catalysis modified TiO2 Ullmann condensation bromamine acid degradation |
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