| β沸石的铝化 |
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| 引用本文： | 杨春,须沁华.β沸石的铝化[J].物理化学学报,1996,12(12):1057-1060. |
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| 作者姓名： | 杨春 须沁华 |
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| 作者单位： | Department of Chemistry,Nanjing University,Nanjing 210093 |
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| 摘 要： | β沸石自1988年结构被确定以来受到普遍重视,由干结构上的特殊性,G沸石既具有较强酸性又具有明显的碱性［‘,‘］．但q佛石的高硅铝比使其在化学组成上对碱性的贡献甚微,如果能降低其硅铝比,则有可能获得具有较强碱性的佛石分子筛．直接合成的o佛石,硅铝比一般在10以上．
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| 关 键 词： | β沸石 铝化 铝酸钠 |
| 收稿时间： | 1996-08-11 |
| 修稿时间： | 1996-10-07 |
Alumination of Zeolite β |
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| Yang Chun,Xu Qinhua.Alumination of Zeolite β[J].Acta Physico-Chimica Sinica,1996,12(12):1057-1060. |
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| Authors: | Yang Chun Xu Qinhua |
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| Institution: | Department of Chemistry,Nanjing University,Nanjing 210093 |
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| Abstract: | Zeolite β was aluminated with aqueous solution of NaAlO2. The product was characterized by means of XRD, FTIR techniques. After alumination, the Si/Al ratio of zeolite β is greatly decreased (from 15.2 to 3-4), and the crystallinity is retained mostly. Alumination is favoured by increasing the amount of added NaAlO2 and temperature, a proper high pH condition is also favourable. However, too high alkalinity leads to the destruction of the framework. |
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| Keywords: | β' ') Zeolite β" target="_blank">">Zeolite β Alumination Sodium aluminate |
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