摘要
上天梯地区发育的玻屑凝灰岩型沸石属斜发沸石.运用化学成分分析、多晶X-射线粉末衍射、热重．差热分析、扫描电子显微镜以及氮气吸附解吸分析等研究手段，较系统地研究了该矿床的矿物学特征上天梯天然沸石主要成分为SiO2（70.72％）和Al2O3（13.15％）．属高硅沸石；比表面积397m^2／g．有效孔径3．8～45A，600℃以下焙烧不破坏沸石的孔道结构，试验结果表明，酸处理改性的信阳天然沸石对水中甲基橙具有较好的去除效果。
The natural clinoptilolite is vitric tuff type zeolite from Shangtianti in Xinyang, China. Its mincralogical charactcristics were investigated by chemical composition analysis, X-ray diffraction（XRD）, differential scanning calorimetry-thermogravimctry （DSC-TG）, scan electronic microseopy（SEM） and N2-adsorption techniques. SiO2 （70.72%） and Al2O3 （13.15%） are the essential components in the clinoptilolite from Xinyang, and the specific surface area is 397m^2/g and the effective aperture is 3.8-4.5A. The pore structure can not damaged after calcined 2 h when the calcination temperature below 600 ℃. Experiments show that the capacity of modified zeolite to remove methyl orange is very strong.
出处
《非金属矿》
CAS
CSCD
北大核心
2008年第5期53-55,共3页
Non-Metallic Mines
基金
河南省高校新世纪优秀人才支持计划项目(No2006HANCET-20)
关键词
沸石
矿物学
结构特征
吸附
zeolite mineralogy structure characteristics adsorption
