| 均匀铝分在超稳Y沸石的制备及制法比较 |
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| 引用本文： | 何农跃,匡跃平,施其宏.均匀铝分在超稳Y沸石的制备及制法比较[J].精细石油化工,1994(4). |
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| 作者姓名： | 何农跃 匡跃平 施其宏 |
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| 作者单位： | 湘潭大学测试中心，湘潭大学测试中心，汕头大学化学系 湖南 411150，湖南 411150，广东 515063 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 采用水热焙烧和向H_2SiF_6-NH_3脱铝补硅超稳Y沸石体系中添加适量Al_2(SO_4)_3的方法制备出几种铝分布均匀的超稳Y沸石分子筛。结果表明,在实验条件下FSAY与USFY性能较佳,水热焙烧使沸石外层铝向USY表面迁移,H_2SiF_6-NH_3使外层骨架铝首先脱除。
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| 关 键 词： | 超稳Y沸石 铝分布 H_2SiF_(6-)NH_3 Al_2(SO_4)_3 |
COMPARISON OF PREPARATION METHODS OF ULTRASTABLE Y ZEOLITES WITH HOMOGENEOUS ALUMINIUM DISTRIBUTION |
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| He Nongyue and Kuang Yueping.COMPARISON OF PREPARATION METHODS OF ULTRASTABLE Y ZEOLITES WITH HOMOGENEOUS ALUMINIUM DISTRIBUTION[J].Speciality Petrochemicals,1994(4). |
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| Authors: | He Nongyue and Kuang Yueping |
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| Affiliation: | He Nongyue and Kuang Yueping (Central Laboratory of Xiangtan University)Shi Qihong (Chemistry Department of Shantou University) |
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| Abstract: | A few species of ultrastable Y zeolite with homogeneous aluminium distribution were prepared by means of combining hydrothermal roast and adding some A12(SO4)3 into the H2SiF6-NH3 dealumium ized and silicon enriched ultrastable Y zeolite slurry. It was found that under the experiment conditions FSAY and USFY are better,the Al enriched in the surface of USY is mainly due to the migration of Al in subsurface of of zeolite,and the H2SiF6-NH removes the extraframework Al firstly. |
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| Keywords: | Ultrastable Y Zeolite Aluminium Distrinution H2SiF6-NH3 Al2(SO4)3 |
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