13X沸石分子筛的比表面积和孔分布

现代地质 ›› 2008, Vol. 22 ›› Issue (5): 838-844.

13X沸石分子筛的比表面积和孔分布

白峰，马鸿文

中国地质大学矿物材料国家专业实验室，北京100083

收稿日期:2008-01-12 修回日期:2008-07-01 出版日期:2008-10-20 发布日期:2009-11-12
作者简介:白峰，男，博士，副教授，1971年出生，矿物学、岩石学与矿床学专业，主要从事矿物材料和宝石学的教学与科研工作。Email：baifengbj@163.com。
基金资助:
“十一五”国家科技支撑计划项目(2006BAD10B04)

Specific Surface Area and Pore Size Distribution of 13X Zeolite Molecular Sieves

BAI Feng, MA Hong-Wen

National Laboratory of Mineral Materials，China University of Geosciences，Beijing100083,China

Received:2008-01-12 Revised:2008-07-01 Online:2008-10-20 Published:2009-11-12

摘要/Abstract

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。

关键词: 13X沸石分子筛, 比表面积, 孔分布

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.

Key words: 13X zeolite molecular sieve, specific surface area, pore size distribution

中图分类号:

P619.23

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): 838-844.

BAI Feng MA Hong-Wen. Specific Surface Area and Pore Size Distribution of 13X Zeolite Molecular Sieves[J]. Geoscience, 2008, 22(5): 838-844.

[1]	陈磊，姜振学，邢金艳，陈冬霞，谢明贤，纪文明. 川西坳陷新页HF-1井须五段泥页岩吸附气含量主控因素及其定量预测模型[J]. 现代地质, 2014, 28(4): 824-831.
[2]	章西焕，马鸿文，白峰. 利用钾长石粉体水热合成13X沸石分子筛的晶化过程[J]. 现代地质, 2007, 21(3): 584-590.