| Cu_(30)Cr_5/碱性氧化铝催化2,2,6,6-四甲基哌啶酮加氢(英文) |
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| 引用本文： | 马建超,刘帅,范小鹏,杜小宝,闫喜龙,陈立功.Cu_(30)Cr_5/碱性氧化铝催化2,2,6,6-四甲基哌啶酮加氢(英文)[J].催化学报,2012,33(4):605-609. |
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| 作者姓名： | 马建超 刘帅 范小鹏 杜小宝 闫喜龙 陈立功 |
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| 作者单位： | 天津大学化工学院,天津,300072 |
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| 基金项目： | supported by the National Natural Science Foundation of China(20706043 and 20976123)~~ |
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| 摘 要： | 在2,2,6,6-四甲基哌啶酮连续化加氢生成2,2,6,6-四甲基哌啶醇的反应中,Cu30Cr5/碱性氧化铝比Cu30Cr5/γ-Al2O3具有更优异的催化性能,反应的转化率和选择性分别高达99.0%和97.2%.N2物理吸附-脱附、X射线光电子能谱、X射线衍射和氨气程序升温脱附结果表明,Cu0作为催化加氢反应的活性中心,在Cu30Cr5/碱性氧化铝中具有更好的分散性,且随着碱性氧化铝的引入,催化剂酸性大幅下降,从而有效抑制副产物2,6-二甲基-4-庚酮的生成,因而产物2,2,6,6-四甲基哌啶醇的选择性显著提高.
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| 关 键 词： | -四甲基哌啶酮 -四甲基哌啶醇 碱性氧化铝 -二甲基--庚酮 铜 铬 伽马氧化铝 |
Hydrogenation of 2,2,6,6-Tetramethylpiperidin-4-one over Cu30Cr5 /Basic Alumina |
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| MA Jianchao
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LIU Shuai
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FAN Xiaopeng
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DU Xiaobao
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YAN Xilonga
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CHEN Ligongb.Hydrogenation of 2,2,6,6-Tetramethylpiperidin-4-one over Cu30Cr5 /Basic Alumina[J].Chinese Journal of Catalysis,2012,33(4):605-609. |
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| Authors: | MA Jianchao LIU Shuai FAN Xiaopeng DU Xiaobao YAN Xilonga CHEN Ligongb |
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| Institution: | b School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China |
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| Abstract: | Alumina B(basic alumina,pH>8) was used as the support of copper-chromium catalysts for continuous hydrogenation of 2,2,6,6-tetramethylpiperidin-4-one(TAA) to 2,2,6,6-tetramethylpiperidin-4-ol(TMP).It was found that Cu30Cr5/alumina B exhibited better catalytic performance than Cu30Cr5/γ-Al2O3.99.0% conversion of TAA and 97.2% selectivity for TMP were obtained over Cu30Cr5/alumina B under optimized conditions.Cu30Cr5/γ-Al2O3 and Cu30Cr5/alumina B were characterized by N2 adsorption-desorption,X-ray diffraction,X-ray photoelectron spectroscopy,and NH3 temperature-programmed desorption.The results showed that Cu particles dispersed better in Cu30Cr5/alumina B than in Cu30Cr5/γ-Al2O3. |
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| Keywords: | 2 2 6 6-tetramethylpiperidin-4-one 2 2 6 6-tetramethylpiperidin-4-ol basic alumina 2 6-dimethyl-4-heptanone copper chromium γ-alumina |
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