沸石分子筛的生成机理与晶体生长(Ⅺ)——T型沸石的晶体生长

高等学校化学学报 ›› 1984, Vol. 5 ›› Issue (1): 83.

沸石分子筛的生成机理与晶体生长(Ⅺ)——T型沸石的晶体生长

王杏乔, 陈忠财, 何淑华, 毛友刚, 李舒, 宋天佑, 徐如人

吉林大学化学系

收稿日期:1982-08-04 出版日期:1984-02-24 发布日期:1984-02-24

THE MECHANISM OF FORMATION AND CRYSTAL GROWTH OF MOLECULAR SIEVE ZEOLITE(Ⅺ)——CRYSTAL GROWTH OF T-TYPE ZEOLITE

Wang Xingqiao, Chen Zhongcai, He Shuhua, Mao Yougang, Li Shu, Song Tianyou, Xu Ruren

Department of Chemisty, Jilin University, Changchun

Received:1982-08-04 Online:1984-02-24 Published:1984-02-24

摘要/Abstract

摘要： 本文提出描述圆柱形T型沸石的晶体生长动力学模型,与实验结果吻合良好。

Abstract: Isothermal phase transformation digram was developed for the K₂O-Na₂O-Al₂O₃-SiO₂-H₂Osystem at 100℃. T-type zeolite was obtained as a pure phase from the reaction mixture with the mole ratio as. 32>SiO₂/Al₂O₃>24 0.34>M₂O/SiO₂>0.30 0.30>K₂O/M₂O>0.23 H₂O/SiO₂ = 16 In the induction period of T-type zeolite or amorphous phase region there were no spontaneous nucleation. Akinetic model on the crystal growth of rod-like T-type zeolite was suggested as dx/dt= k_x^2/3 , where k is related to the composition of original gel, especially to the temperature. E_c of T-type zeolite was measured as 16.7Kcal/mol for the system of 1.95K₂O·5.85Na₂O·Al₂O₃·26SiO₂·416H₂O.

TrendMD:

王杏乔, 陈忠财, 何淑华, 毛友刚, 李舒, 宋天佑, 徐如人. 沸石分子筛的生成机理与晶体生长(Ⅺ)——T型沸石的晶体生长. 高等学校化学学报, 1984, 5(1): 83.

Wang Xingqiao, Chen Zhongcai, He Shuhua, Mao Yougang, Li Shu, Song Tianyou, Xu Ruren. THE MECHANISM OF FORMATION AND CRYSTAL GROWTH OF MOLECULAR SIEVE ZEOLITE(Ⅺ)——CRYSTAL GROWTH OF T-TYPE ZEOLITE. Chem. J. Chinese Universities, 1984, 5(1): 83.