| V_2O_5/C催化氧化乙二醛制备乙醛酸 |
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| 引用本文： | 徐峥,胡志勇,翟丽军,牛宇岚.V_2O_5/C催化氧化乙二醛制备乙醛酸[J].化学研究,2007,18(2):35-37,43. |
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| 作者姓名： | 徐峥 胡志勇 翟丽军 牛宇岚 |
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| 作者单位： | 1. 中北大学,化工与环境学院,山西,太原,030051
2. 中北大学分校,化学工程系,山西,太原,030008 |
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| 基金项目： | 山西高校科技研究开发项目(20051272) |
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| 摘 要： | 利用等体积浸渍法制备了V2O5/C催化剂,并应用于乙二醛的液相氧化反应,采用XRD、TEM手段对催化剂进行了物化性质表征.结果表明,V2O5/C对乙二醛的氧化表现出较高的催化活性和乙醛酸选择性,反应10h,乙二醛的转化率达29.2%,乙醛酸得率13.6%.与贵金属Pd-Bi/C催化剂相比,V2O5/C催化剂的稳定性和重复使用效果都比较好.
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| 关 键 词： | 乙二醛 乙醛酸 氧化 V2O5/C催化剂 |
| 文章编号： | 1008-1011（2007）02-0035-03 |
| 修稿时间： | 2007-01-11 |
Catalytic Oxidation of Glyoxal to Glyoxylic acid on V2O5/C Catalyst |
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| XU Zheng,HU Zhi-yong,ZHAI Li-jun,NIU Yu-lan.Catalytic Oxidation of Glyoxal to Glyoxylic acid on V2O5/C Catalyst[J].Chemical Research,2007,18(2):35-37,43. |
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| Authors: | XU Zheng HU Zhi-yong ZHAI Li-jun NIU Yu-lan |
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| Institution: | 1. School of Chemical Engineering and Environment, North University of China, Taiyuan 030051, Shanxi, China; 2. Department of Chemical Engineering, Branch of North University of China, Taiyuan 030008, Shanxi, China |
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| Abstract: | V2O5/C catalyst prepared by impregnation of active carbon with vanadium solution, was investigated in the liquid-phase oxidation of glyoxal to glyoxylic acid. The nature of the catalyst was discussed based on X-ray diffraction, and transmission electron microscopy.The results showed that V2O5/C performs higher glyoxal conversion and selectivity of glyoxylic acid than noble metal catalyst Pd-Bi/C. Over V2O5/C catalyst, the conversion of glyoxal and the yield of glyoxalic acid were 29.2 % and 13.6 % respectively after reaction for 10 h. Compared with noble metal Pd-Bi/C catalyst, the stability and repetition of V2O5/C are better. |
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| Keywords: | glyoxal glyoxylic acid oxidation V2O5/C catalyst |
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