研究了稀土改性丝光沸石催化剂对常压固定床上甲胺化反应的活性及选择性的影响, 结果表明,以钇改性丝光沸石催化剂的活性及对二甲胺的选择性最佳.催化剂表征结果表明, 稀土改性丝光沸石主要是引起丝光沸石中B酸中心发生变化,而对丝光沸石的晶体结构及表面硅铝原子比基本不产生影响.稀土改性能增强催化剂的热稳定性,延长催化剂的寿命.
参考文献
[1] | Weigert F J .Selective synthesis and equilibration of methylamines on sodium mordenite[J].Journal of Catalysis,1987,103:20. |
[2] | Mochida I;Yasutake A;Fujitsu H et al.Selective synthesis of dimethylamin(DMA) from methanol and ammonia over zeolites[J].Journal of Catalysis,1983,82:313. |
[3] | Segawa K;Tachibana H .Hight selective methylamine synthesis over modified mordenite catalysts[J].Journal of Catalysis,1991,131:482. |
[4] | Keane M;Sonnichsen G C;Abrams L et al.Selective synthesis of dimethylamine over small-pore zeolites[J].Applied Catalysis,1987,32:361. |
[5] | Abrams L;Keane M;Sonnichsen G C .Selective synthesis of dimethylamine over small-pore zeolites: catalytic selectivity and sorption behavior[J].Journal of Catalysis,1989,115:410. |
[6] | Shannon R D;Keane M;Abrams L et al.Selective synthesis of dimethylamine over small-pore zeolites Ⅱ. effects of impurities on catalytic properties of H-RHO[J].Journal of Catalysis,1988,114:8. |
[7] | 王军,张盈珍.阳离子改性丝光沸石上二甲胺的选择性合成研究[J].精细石油化工,1993(05):23. |
[8] | 邱祖民;李凤仪;章磊 等.铈改性丝光沸石用于合成甲胺[J].高等学校化学学报,1996,10(04):41. |
[9] | 许章林;张勇珍;王军 .碱金属丝光沸石的表征及对甲胺合成反应的性能[J].催化学报,1994,15(05):368. |
[10] | Shannon R D;Keane M;Abrams L et al.Selective synthesis of dimethylamine over small-pore zeolites Ⅰ. H-RHO[J].Journal of Catalysis,1988,113:367. |
[11] | Bergna H E;Keane M;Ralston D H et al.Selective synthesis of dimethylamine over small-pore zeolites Ⅳ. effects of SiO2 and Al2O3 coating[J].Journal of Catalysis,1989,115:148. |
[12] | Dejaifve P;Auroux A;Gravelle P C et al.Methanol conversion on acidic ZSM-5, offretite, and mordenite zeolites: a comparative study of the formation and stability of coke deposits[J].Journal of Catalysis,1981,70:123. |
[13] | 邱祖民;李凤仪 .铈改性丝光沸石在甲醇胺化反应中的应用[J].应用化学,1997,14(05):63. |
[14] | Bein T H;Carver R F;Farlce R D et al.Solid-state Si NMR and infrared studies of reactions of mono- and polyfunctional silanes with zeolite Y surfaces[J].Journal of the American Chemical Society,1988,110:4546. |
[15] | Li Jianhui;Li Fengyi;Li Xianlai et al.Studies of the surface behaviour and catalytic properties of Pt-Ce-γ-Al2O3[J].Journal of the Less-Common Metals,1989,148:405. |
[16] | 邱祖民 .丝光沸石用于甲醇胺化催化剂的研究[D].华南理工大学,1997. |
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