矿产保护与利用Issue(1)：77-83,7.DOI:10.13779/j.cnki.issn1001-0076.2017.01.015
粉煤灰酸法提取氧化铝的残渣制备4A分子筛
Prepartion 4A-Zeolite with Acid Insoluble Ash Residue of Alumina Extraction from Fly Ash
摘要
Abstract
Acid insoluble ash residue was obtained from fly ash acid –dissolving extracting alumi-na.4A-zeolite was prepared with the acid insoluble ash by alkaline -hydrothermal method .The paper also studies the preparation conditions and the product properties .The results indicate that the optimum conditions:ratio of silicon to aluminum in raw material 1.5, NaOH/fly ash acid resi-due =1 .2 , calcination temperature 600 ℃, crystal temperature 100℃, Liquid-solid ratio15 and crystal time 8 h.The products structural characterization tested by XRD , SEM, IR, TG-DSC, BET and Cation exchange capacity .Comparison with standard 4A-zeolite, the results showed that the synthetic product is the 4A-zeolite, and it has good thermal stability and high adsorption ca-pacity .关键词
4A分子筛/粉煤灰/氧化铝Key words
4A-zeolite/fly ash/alumina分类
矿业与冶金引用本文复制引用
贾敏,池君洲,王永旺,高桂梅..粉煤灰酸法提取氧化铝的残渣制备4A分子筛[J].矿产保护与利用,2017,(1):77-83,7.基金项目
国家科技部"十二五"科技支撑计划项目(2011BAA04B05) （2011BAA04B05）
