| RESEARCH PAPER |
|
|
|
|
|
| Energy-efficient Synthesis of Zeolite X by a Wet-gel Crystallization Route and Its Ion-exchange Properties |
| ZHAO Bo1, JI Yanyan1, ZHANG Bing1, WANG Dongmei2, ZHANG Jimei1
|
1 State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387;
2 State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012 |
|
|
|
|
Abstract Zeolites have been widely used in industrial processes due to their uniform and intricate channels, large surface areas, high stabilities and excellent shape-selectivity. New methodology with high efficiency, low energy-cost and easy-fabricating is of great importance for zeolite synthesis. A wet-gel crystallization method for zeolite X synthesis is proposed from improving the conventional hydrothermal route. XRD, SEM and N2 isotherms were performed to characterize the structure of products. The yield of solid products was also investigated. It showed an obvious promotion of products yield within the same reactor compared with the conventional synthesis route of zeolite X. The products exhibited similar physical and chemical properties with that of conventional zeolite X and also good performance in the calcium ion exchange processes.
|
|
Published: 08 May 2018
|
|
|
|
|
1 Davis M E. Ordered porous materials for emerging applications [J].Nature,2002,417:813.
2 Corma A. State of the art and future challenges of zeolites as catalysts [J]. J Catal,2003,216:298.
3 J?ger R, Schneider A M, Behrens P, et al. Selective adsorption of polychlorinated dibenzo-p-dioxins and dibenzofurans by the zeosils UTD-1, SSZ-24, and ITQ-4 [J]. Chemistry-A Eur J,2004,10:247.
4 Cundy C S, Cox P A. State of the art and future challenges of zeolites as catalysts [J]. Chem Rev,2003,103:663.
5 Zones S I. Translating new materials discoveries in zeolite research to commercial manufacture [J]. Microp Mesop Mater,2011,144:1.
6 Pinard L, Magnoux P, Ayrault P, et al. Oxidation of chlorinated hydrocarbons over zeolite catalysts 2. Comparative study of dichloromethane transformation over NaX and NaY zeolites [J]. J Catal,2004,221:662.
7 Zhang Q C. Zeolite sorption in environmental protection [J]. Mater Rev,1994,8(3):38(in Chinese).
张铨昌. 沸石吸附性能及其在环境保护中的应用[J]. 材料导报,1994,8(3):38.
8 Theng B K G, Vansant E, Uytterhoeven J B. Ion exchange in synthetic zeolites. Part 1. Ammonium and some of its alkyl derivatives in Linde Sieves X and Y [J]. Trans Faraday Soc,1968,64:3370.
9 Guan L L, Duan L Y, Xie Y C. Effects of Mn+ ion exchange on the adsorptive separation property of Lix with N2 and Ar [J]. J Inorg Mater,2005,20(2):503(in Chinese).
关莉莉, 段连运, 谢有畅. 多价离子交换对LiX分子筛氮氩分离性能的影响[J]. 无机材料学报,2005,20(2):503.
10 Peng X D, Zhang G, Liu H, et al. Removing heavy metal chromium(Ⅲ) of the water by 13 X molecular seive [J]. Environ Sci Technol,2013,36(7):99(in Chinese).
彭秀达,张钢,刘红,等. 13X分子筛去除水中重金属离子Cr3+的研究[J]. 环境科学与技术,2013,36(7):99.
11 戚洪彬, 马鸿文, 孙华,等. 13X沸石分子筛用于洗衣粉助剂的实验研究[C]// 中国矿物岩石地球化学学会学术年会. 北京,2007.
12 Xu G Y, Zhao Z N, Xi B. Study on modified condition of zeolite for separation of xylene by adsorption [J]. Fuel Chem Processes,2004,35(4):26(in Chinese).
徐桂英,赵振宁,奚白. 吸附分离二甲苯分子筛的改性条件研究[J]. 燃料与化工,2004,35(4):26.
13 Zuo R, Liang X P, Zhu M F, et al. Preparation and characterization of Ce-NaX zeolite molecular sieve via ion-exchange method [J]. Mater Rev:Res,2013,27(10):40(in Chinese).
左蕊,梁小平,朱孟府,等. 离子交换法制备Ce-NaX沸石分子筛及其结构表征[J]. 材料导报:研究篇,2013,27(10):40.
14 Meng X J, Xiao F S. Green routes for synthesis of zeolites [J]. Chem Rev,2014,114:1521.
15 徐如人,庞文琴. 沸石分子筛的结构与合成[M]. 长春:吉林大学出版社,1987:107.
16 中华人民共和国卫生部国家标准化管理委员会.GB5749-2006生活饮用水卫生标准[S].北京:中国标准出版社,2006. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
2017, Vol. 31 
