| 水热法制备NaY型分子筛及其催化合成柠檬酸三丁酯 |
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| 引用本文： | 查飞,丁建峰,程再华,常玥.水热法制备NaY型分子筛及其催化合成柠檬酸三丁酯[J].工业催化,2011,19(4):41-45. |
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| 作者姓名： | 查飞 丁建峰 程再华 常玥 |
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| 作者单位： | (西北师范大学化学化工学院，甘肃 兰州 730070) |
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| 基金项目： | 甘肃省自然科学基金，甘肃省教育厅基金 |
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| 摘 要： | 以正丁胺为模板剂,采用水热法制备了NaY型分子筛,用XRD、SEM和TG-DTA等手段对分子筛进行表征,研究了晶化时间、晶化温度、投料顺序和添加NaCl对制备的分子筛性能的影响,原料中添加NaCl,423 K晶化50 h,制备的NaY型分子筛结晶度高,颗粒均匀,粒径约1 μm.用制备的分子筛分别负载CuO-ZnO<,2...
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| 关 键 词： | 催化化学 NaY分子筛 水热合成法 柠檬酸三丁酯 |
Preparation of NaY zeolite by hydrothermal method and its application in catalytic synthesis of n-tributyl citrate |
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| ZHA Fei,DING Jianfeng,CHENG Zaihua,CHANG Yue.Preparation of NaY zeolite by hydrothermal method and its application in catalytic synthesis of n-tributyl citrate[J].Industrial Catalysis,2011,19(4):41-45. |
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| Authors: | ZHA Fei DING Jianfeng CHENG Zaihua CHANG Yue |
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| Affiliation: | (School of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, Gansu, China) |
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| Abstract: | NaY zeolite was prepared by hydrothermal method using n-butylamine as the template and characterized by XRD, SEM and TG-DTA. The effects of crystallization time and temperature, feeding order,and the addition of NaCl on the properties of as-prepared zeolite were investigated. The results showed that NaY zeolite had high crystallinity and uniform particle size of 1 um,which was crystallized at 423 K for 50 h and added NaCl in raw materials. The catalytic activity of NaY zeolite loaded with CuO-ZnO2-Al2O3 and FeCl3 for the synthesis of tributyl citrate was investigated,respectively. Tributyl citrate yield of more than 75% was attained under the reaction condition as follows： reaction temperature 405 K, reaction time 3 h, molar ratio of citric acid to n-tributyl alcohol 1：5, catalyst dosage 5% of the reactant mass. |
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| Keywords: | catalytic chemistry NaY zeolite hydrothermal method tributyl citrate |
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