不同硅源和铝源对L沸石合成的影响

石油炼制与化工 ›› 2013, Vol. 44 ›› Issue (5): 10-13.

不同硅源和铝源对L沸石合成的影响

陈宜俍,商建超,朱阳阳,韩丽

郑州大学化工与能源学院

收稿日期:2012-09-13 修回日期:2012-10-11 出版日期:2013-05-12 发布日期:2013-06-05
通讯作者: 陈宜俍 E-mail:liangchen@zzu.edu.cn
基金资助:
河南省人才培养联合基金（NSFC）

INFLUENCE OF SOURCE OF SILICA AND ALUMINUM ON SYNTHESIS OF ZEOLITE L

Received:2012-09-13 Revised:2012-10-11 Online:2013-05-12 Published:2013-06-05

摘要/Abstract

摘要： 以不同方法生产的氢氧化铝为铝源，以不同牌号的白炭黑为硅源合成L沸石，考察原料对L沸石合成的影响。结果表明：碳分氢氧化铝是最佳铝源；高纯白炭黑是最佳单一硅源；加入超细白炭黑作为硅源可改善合成的L沸石的过滤性质，其在混合硅源中的最佳比例是50%，此时综合效益有望最大。

Abstract: To study the influence of raw materials on the synthesis of zeolite L, Al(OH)3 from different sources and fumed-silica of different grades were used. The samples were characterized by XRD and BET. The relative crystallinity was calculated. Results show that the carbonation Al(OH)3 is the best aluminum source for increasing relative crystallinity of L zeolite, and the high purity fumed-silica as a single silicon source has also higher crystallinity of L zeolite . Ultrafine fumed-silica can improve the filtering property of zeolite L，and the optimum ratio of ultrafine fumed-silica in hybrid silicon source is 50%, the highest overall efficiency may be achieved at this point.

陈宜俍商建超朱阳阳韩丽. 不同硅源和铝源对L沸石合成的影响[J]. 石油炼制与化工, 2013, 44(5): 10-13.

参考文献

[1] 牛静静,郭士岭,陈宜俍,等.高岭土微球原位晶化L沸石及其表征[J].河南化工,2007,24(12):14-18. [2] 王殿中,舒兴田,何鸣元.硅源对合成高硅ZSM-5分子筛的影响[J].石油炼制与化工,2002,33 (6):16-18. [3] Nadiya Danilina, Stefano A. Castelanelli, Ekaterina Troussard,et al.In?uence of synthesis parameters on the catalytic activity of hierarchical SAPO-5 in space-demanding alkylation reactions[J].Catalysis Today ,168 (2011), 80–85. [4] 侯红美,厉刚,苑昊,等.丝光沸石晶化过程硅源的影响机制[J].石油学报,2009,10月增刊:9-13. [5] 汪哲明,阎子峰.SAPO-11分子筛的合成[J].燃料化学学报. 2003,32(4):360-366. [6] 王水利,葛岭梅,杨建利.纳米沸石的合成及其影响因素[J].纳米加工工艺,2005, 2（3）：34-38. [7] 徐如人,庞文琴,于吉红,等.分子筛与多孔材料化学[M].北京:科学出版社,2004：324 - 355. [8] Shylesh, A.P. Singh. Vanadium-containing ordered mesoporous silicates:Does the silica source really affect the catalytic activity, structural stability, and nature of vanadium sites in V-MCM-41[J]. Journal of Catalysis ,233 (2005) 359–371. [9] S. Shylesh, S.P. Mirajkar, A.P. Singh.In?uence of silica source in the catalytic activity and heterogenity of mesoporous vanadosilicates[J].Journal of Molecular Catalysis A: Chemical 239 (2005) 57–63. [10] 刘雷,张高勇,董晋湘,等.硅源对纯硅MCM-41介孔分子筛结构性能的影响[J].精细化工, 2004,21(2):95-98. [11] Sami Habib , Franck Launay ,Se bastien Laforge , et al. High catalytic cracking activity of Al-MCM-41 type materials prepared from ZSM-5 zeolite crystals and fumed silica[J]. Applied Catalysis A: General 344 (2008) 61–69. [12] Vasant R. Choudhary & Anil K. Kinage.Hydrothermal Synthesis of Gallosilicate (MFI) Zeolite : Factors Inyuencing Crystallization Kinetics and Crystal Size/Growth[J].J. Chem. Technol. Biotechnol,1998, 72, 176-182.