| 用EDTA脱铝控制NaY沸石硅铝比的探讨 |
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| 引用本文： | 凌泽荣,马正飞,孔庆震. 用EDTA脱铝控制NaY沸石硅铝比的探讨[J]. 陶瓷科学与艺术, 1989, 0(4) |
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| 作者姓名： | 凌泽荣 马正飞 孔庆震 |
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| 作者单位： | 南京化工学院化学工程系，南京化工学院化学工程系，南京化工学院化学工程系 |
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| 摘 要： | 本文用EDTA作为NaY沸石的脱铝剂,制备出具有不同硅铝比的脱铝NaY沸石。考察了EDTA的加入量和pH对脱铝程度的影响。测定了脱铝沸石样品的IR吸收光谱、Cu~( )离子交换度和对水的吸附能力。结果表明,在pH=1～2条件下脱铝程度是与加入的EDTA量成线性关系,可根据需要控制脱铝NaY沸石的硅铝比。
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| 关 键 词： | 脱铝 沸石 硅铝比 |
THE CONTROL OF Si/Al RATIO OF NaY ZEOLITE WITH EDTA AS A DEALUMINATION REAGENT |
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| Ling Zerong Ma Zhengfei Kong Qingzhen. THE CONTROL OF Si/Al RATIO OF NaY ZEOLITE WITH EDTA AS A DEALUMINATION REAGENT[J]. Ceramics Science & Art, 1989, 0(4) |
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| Authors: | Ling Zerong Ma Zhengfei Kong Qingzhen |
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| Affiliation: | Department of Chemical Engineering |
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| Abstract: | In this paper, the dealuminated NaY zeolite at various Si/Al ratios was prepared by using EDTA as a dealumination reagent. The effects of EDTA amounts and pH on the dealumination degree of the zeolite were investigated, and so were the IR spectra, the degree of Cu~# ion-exchange and the adsorption of H_2O on the dealuminated NaY samples. It is shown that under the condition of pH between 1 and 2, the degree of dealumination of the zeolite is proportional to the amounts of EDTA added, and the deauminated NaY zeolite with a desired Si/Al ratio can be obtained. |
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| Keywords: | dealumination zeolite Si/Al ratio dealuminated NaY. |
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