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材料研究学报  2007, Vol. 21 Issue (3): 272-276    
  论文 本期目录 | 过刊浏览 |
TS-1分子筛的表面改性与再生
郭建维  刘卅  王乐夫  崔亦华  余林
引用本文:

郭建维; 刘卅; 王乐夫; 崔亦华; 余林 . TS-1分子筛的表面改性与再生[J]. 材料研究学报, 2007, 21(3): 272-276.

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摘要: 合成钛硅分子筛TS-1,研究了表面负载金属钯、表面硅烷化处理对TS-1催化氧化性能的影响以及TS-1的稳定性和再生性能.结果表明:金属Pd对氧化剂H2O2具有显著的分解作用,负载于TS-1表面会导致TS-1分子筛催化氧化活性下降.表面硅烷化处理可以增强TS-1表面疏水性,进而提高其催化氧化活性.TS-1分子筛的失活不是结构崩溃、骨架钛损失或中毒因素引起的,而是其孔道被大分子有机物堵塞所致.采用高温焙烧或H2O2溶液洗涤法能疏通失活TS-1分子筛的孔道,使其再生.
Key words
收稿日期: 1900-01-01     
1 Taramasso M.,Perego G.,Notari B.,Preparation of porous crystalline synthetic material comprised of silicon and titanium oxides.US 4410 501(1983)
2 B.Kraushaar,J.H.C.Van Hooff,A test reaction for tita- nium silicalite catalysts,Catalysis Letters,1(4),81(1988)
3 William R.Sanderson,Cleaner industrial processes using hydrogen peroxide,Pure Appl.Chem.,72(7),1289(2000)
4 David H.Wells,Jr.,W.Nicholas Delgass,Kendall T. Thomson,Evidence of defect-promoted reactivity for epoxidation of propylene in titanosilieate(TS-1)Cata- lysts:A DFT Study,J.Am.Chem.Soc.,126(9), 2956(2004)
5 Wang Xiangsheng,Guo Xinwen,Ligang,Synthesis of ti- tanium silicalite(TS-1)from the TPABr system and its catalytic properties for epoxidation of propylene,Catalysis Today,74(1~2),65(2002)
6 GUO Jianwei,WANG Lefu,LIU Sa,Synthesis of titanium silicalite molecular sieve TS-2 by precipitate silica,Jour- nal of Inorganic Materials,20(2),386(2005) (郭建维,王乐夫,刘卅,用沉淀氧化硅合成钛硅分子筛TS-2的研究,无机材料学报,20(2),386(2005)
7 Ding Yong,Gao Qiang,Wang Bin,Some new features on synthesis of titanium silicalite-i in a non-TPAOH inor- ganic reactant synthetic system,Journal of Porous Mate- rials,12(2),231(2005)
8 A.Thangaral,S.Sivasanker,An improved method for TS-1 synthesis:29Si NMR studies,J.Chem.Soc.Chem.Com- mun,(2),123(1992)
9 Grosch G.H.,Muller U.,Schulz M.,Rieber N.,Wuerz H.,Oxidation catalyst and its use in the production of epoxides from olefins,hydrogen and oxygen,WO 9747386(1997)
10 A.Tuel,Y.Ben,Tarrit Y.,Synthesis of titanium silicalite- 1 using hexapropyl-1,6-hexanediammonium ions as tem- plating agent,Zeolites,14(7),594(1994)
11 Li Gang,Guo Xinwen,Wang Xiangsheng,A kind of inac- tive titanium species in titanium silicalite,Chinese Journal of catalysis,20(2),99(1999) (李纲,郭新闻,王祥生,钛硅沸石中的一种非活性钛物种,催化学报,20(2),99(1999))
12 Yi Guobin,Guo Jianwei,Wang Lefu,Influences of grain size of titanium silicalite-1 on its catalytic oxidation ac- tivity,Journal of Materials Science & Engineering,23(3), 373(2005) (易国斌,郭建维,王乐夫,晶粒大小对钛硅分子筛TS-1催化氧化活性的影响,材料科学与工程学报,23(3),373(2005))
13 Notari B.,Titanium silicalite:A new selective oxidation catalysis,Stud.Surf.Sci.Catal.,67,243(1991)
14 Y.G.Li,Y.M.Lee,J.F.Porter,The synthesis and charac- terization of titanium silicalite-1,Journal of Materials Sci- ence,37(10),1959(2002)
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