太原理工大学学报2012，Vol.43Issue(5)：539-543,5.
利用粉煤灰合成4A沸石分子筛的研究
Synthesis of Zeolite 4A from Coal Fly Ash
摘要
Abstract
Zeolite 4A was synthesized using coal fly ash (CFA) as raw material by fusion-hy-drothermal process, i. e. fusion methods using NaOH followed by a hydrothermal reaction. The effects of synthesis conditions such as NaOH fusion temperature, NaOH concentration, aging time, operating temperature and hydrothermal reaction time, were investigated. Characterization of samples was carried out by XRD, SEM and N2-adsorption. The results show that zeolite 4A with good crystallinity and appearance was prepared from CFA by controlling synthesis conditions without the addition of a silicon or aluminium source. The optimal synthesis conditions for zeolite 4A were found to be as follows: m(NaOH)/m(CFA) = 1. 2, fusion temperature 850°C, NaOH concentration 2. 14 mol/L, aging time 6 h, reaction temperature 90℃ and reaction time 12 h.关键词
粉煤灰/4A分子筛/碱熔融法/水热合成法Key words
coal fly ash/zeolite 4A/fusion method/hydrothermal method分类
化学化工引用本文复制引用
崔杏雨,张徐宁,陈树伟,范彬彬,马静红,李瑞丰..利用粉煤灰合成4A沸石分子筛的研究[J].太原理工大学学报,2012,43(5):539-543,5.基金项目
山西省自然科学基金资助项目(2012011005-6) （2012011005-6）
山西省自然科学基金资助项目(2007011032) （2007011032）
太原市技术创新计划资助项目(0802015) （0802015）
