| 13X沸石分子筛的比表面积和孔分布 |
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| 引用本文： | 白峰,马鸿文.13X沸石分子筛的比表面积和孔分布[J].现代地质,2008,22(5). |
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| 作者姓名： | 白峰 马鸿文 |
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| 作者单位： | 中国地质大学矿物材料国家专业实验室,北京,100083 |
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| 摘 要： | 对利用钾长石粉水热合成的13X沸石分子筛分别进行了比表面积和孔分布测定。结果表明:13X沸石分子筛比表面积约为621.50~747.40 m2/g,总孔体积约为0.344 70~0.393 70 cm3/g;具有高比例且孔径小于2.50 nm的微孔,中—小型实验样品(SXZ-10g和SXZ-1kg)的微孔体积比例相近,为81.33%~84.70%,而扩大实验样品(SXZ-10kg)的微孔体积比例为67.90%~67.98%。13X沸石分子筛微孔的含量是决定13X沸石分子筛具有高比表面积和高效吸附性能的前提。
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| 关 键 词： | 13X沸石分子筛 比表面积 孔分布 |
Specific Surface Area and Pore Size Distribution of 13X Zeolite Molecular Sieves |
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| BAI Feng,MA Hong-wen.Specific Surface Area and Pore Size Distribution of 13X Zeolite Molecular Sieves[J].Geoscience——Journal of Graduate School,China University of Geosciences,2008,22(5). |
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| Authors: | BAI Feng MA Hong-wen |
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| Abstract: | The specific surface area and pore size distribution of the hydrothermally synthesized 13X zeolite molecular sieves from calcined potassium feldspar powder from 95 ℃ to 100 ℃ were experimentally investigated in this paper.The results showed that the specific surface area of the synthetic 13X zeolite molecular sieves changed from 747.40 to 621.50 m2/g.The total volumes changed from 0.344,70 to 0.393,70 cm3/g.The micro-pore volume ratio,the pore size being less than 2.5 nm of the 13X zeolites,highly reached the range from 81.33% to 84.70% in small and medium scale of experimental samples of SXZ-10g and SXZ-1kg;while the micro-pore volume ratios of extend scale of experimental samples of SXZ-10kg were from 67.90% to 67.98%.The micro-pore volume was an important factor of high specific surface area and high adsorption capability of 13X zeolite molecular sieves. |
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| Keywords: | 13X zeolite molecular sieve specific surface area pore size distribution |
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