运用水热合成技术, 在通道密度为62cell/cm2的堇青石蜂窝陶瓷载体上, 原位合成了TS-1分子筛. 并用XRD、FT-IR和SEM等测试手段对其进行了表征. 在此基础上, 寻找出能降低模板剂和钛源用量的原料配比, 并简化了合成路线. 同时, 还讨论了原料中H2O和SiO2 的摩尔比以及晶化时间对TS-1负载状况的影响. 结果表明, 用37%盐酸处理6h后的堇青石蜂窝载体的内外表面上, 经过一次水热合成, 可牢固、均匀地生长出TS-1分子筛膜, 而相应的载体增重为10%~16%.
Titanium silicalite-1 molecular sieve (TS-1) was in situ synthesized on the surface of honeycomb-shaped cordierite support by a hydrothermal method. XRD, FT-IR and SEM were used to characterize the samples. The optimal process of preparing TS-1/cordierite including synthesized from cheaper preplursor was studied. Meanwhile, the effects of crystallization period and molar ratio of H2O and SiO2 in their mother solution on the growth of TS-1 on monolithic cordierite support were also researched experimentally. The results show that a coating of TS-1 crystals grows successfully on the surface of monolithic cordierite support pretreated with 37% hydrochloric acid for 6h, and the weight of the cordierite is increased by 10%--16%.
参考文献
| [1] | Notari B. Studies in Surface Science and Catalysis, 1990. 343--352. [2] Carlo Perego, Angela Carati, Patrizia Ingallina, et al. Application Catalysis:General, 2001, 221: 63--72. [3] 王爱琴, 梁东白, 唐军旺, 等. 高等学校化学学报, 2000, 21 (12): 1801--1804. [4] Lachman I M, Patil M D. Cryallising Zeolite onto Surface of Monolithic Ceramic Substrate to Obtain Catalyst of Industrial Use: US,4800187. 1989-1-24. [5] 王爱琴, 梁东白, 徐长海,等. 催化学报, 2000, 21 (1): 19--22. [6] 陈晓晖, 蔡丽蓉, 魏可镁. 化工进展, 2004, 23 (11): 1222--1226. [7] Tuel A, Y. Ben Taarit. Zeolites, 1994, 14: 272--281. [8] Tuel A, Y. Ben Taarit, C. Naccache. Zeolites, 1993, 13: 454--481. [9] Taramasso M, Perego G, Notari B. Preraration of Porous Crystalline Synthetic Material Comprised of Silicon and Titanium Oxides: US,4410501.1983. [10] Van der Pol A J H P, Van Hooff J h c. Application Catalysis:General, 1992, 92 (2): 93--111. [11] 程时标, 金泽明, 吴巍. 催化学报, 1999, 20 (2): 134--138. [12] Uguina M A, Serrano D P, Ovejero G, et al. Application Catalysis:General, 1995, 124 (2): 391--408. [13] Thangaraj A, Kumar R, Sivasanker S. Zeolites, 1992, 12 (2): 135--137. [14] 高焕新, 曹静, 卢文奎, 等. 催化学报, 2000, 21 (6): 579--582. [15] Wang liqin, Wang Xiangsheng, Guo Xinwen, et al. Chinese Journal of Catalysis, 2001, 22 (6): 513--514. [16] 林民, 舒兴田, 汪燮卿. 催化学报, 1999, 20 (1): 29--34. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%