| 高硅铝比NaY分子筛的合成 |
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| 引用本文： | 顾建峰,崔楼伟,王新星,袁忠勇.高硅铝比NaY分子筛的合成[J].工业催化,2012,20(1):34-38. |
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| 作者姓名： | 顾建峰 崔楼伟 王新星 袁忠勇 |
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| 作者单位： | 1.西北化工研究院，陕西 西安 710600;2.南开大学化学学院新催化材料科学研究所，天津 300097 |
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| 基金项目： | 陕西省科技计划（2011K08-03） |
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| 摘 要： | 采用动态水热晶化法，利用工业原料不加模板剂直接合成高硅铝比的NaY分子筛，制备的NaY分子筛的硅铝物质的量比稳定在5.85~6.05，相对结晶度大于85%。考察了导向剂陈化时间及温度、体系碱度、预晶化温度及时间等对合成的NaY分子筛硅铝比和结晶度的影响，提出制备高硅NaY的最佳合成条件。
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| 关 键 词： | 催化剂工程 NaY分子筛 硅铝物质的量比 直接合成法 预晶化 |
Synthesis of NaY molecular sieve with high ratio of Si/AI |
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| GU Jianfeng
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Cui Louwei
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Wang Xinxing
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YUAN Zhongyong.Synthesis of NaY molecular sieve with high ratio of Si/AI[J].Industrial Catalysis,2012,20(1):34-38. |
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| Authors: | GU Jianfeng Cui Louwei Wang Xinxing YUAN Zhongyong |
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| Affiliation: | 1.Northwest Research Institute of Chemical Industry, Xi’an 710600, Shaanxi, China; 2.Institute of New Catalytic Materials Science, College of Chemistry, Nankai University, Tianjin 300097, China |
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| Abstract: | Using commercial raw materials, NaY molecular sieves with high Si02/A1203 ratio and high crystallinity were directly synthesized by hydrothermal crystallization method. NaY molecular sieves with Si02/A1203 molar ratio of 5.85 -6.05 and relative crystallinity of over 85% were attained. The influence of aging time and temperature of the seed-gel, the alkalinity of the initial gel and pre-crystallization tem- perature and time on SiO2/AI203 ratio and relative crystallinity of NaY molecular sieves was investigated. The optimal synthesis condition of high-silica NaY molecular sieves was proposed. |
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| Keywords: | catalyst engineering NaY molecular sieves Si02/A1203 molar ratio direct synthesis precrystallization |
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