Pure zeolite X synthesized from coal fly ash by pretreatment with solid alkali and using seed crystal

3rd International Conference on New Material and Chemical Industry

材料科学;化学工业

Lv, N.Q.^1^2 ; Zhou, T.G.^1^2 ; Liu, H.^1^2 ; Li, T.T.^1^2 ; Zhang, Y.^1^2 ; Zhao, Y.^1^2 ; Sun, J.W.^1^2 ; Xi, B.D.^1^2

State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing

100012, China^1

State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing

100012, China^2

关键词: Coal fired power station;    Efficient technology;    Environmental pollutions;    Global environmental problems;    OH concentration;    Optimum conditions;    Solid-liquid ratio;    Synthesized zeolite;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/479/1/012081/pdf
DOI  :  10.1088/1757-899X/479/1/012081

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Coal fly ash was the main burning by-products in a coal-fired power station, which is a major global environmental problem and is threat to public health and environmental pollution. In this study, the optimum condition of synthesized zeolite from fly ash were investigated. The results showed that the optimum conditions were that the OH-concentration, the Si/Al ratio, the solid liquid ratio and aging time were 0.75 mol/L, 2.8, 9 ml/g and 0.5 h, respectively, for the synthesis of zeolites X. It is suggested that this method for synthesized zeolite X from coal fly ash is an efficient technology.