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  

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

作　　者：王杏乔[1] 陈忠财 何淑华 毛友刚 李舒 宋天佑[1] 徐如人[1] Wang Xingqiao;Chen Zhongcai;He Shuhua;Mao Yougang;Li Shu;Song Tianyou;Xu Ruren(Department of Chemisty,Jilin University,Changchun)

机构地区：[1]吉林大学化学系

出　　处：《高等学校化学学报》1984年第1期83-88,共6页Chemical Journal of Chinese Universities

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。Isothermal phase transformation digram was developed for the K_(2)O-Na_(2)O-Al_(2)O_(3)-SiO_(2)-H_(2)O system at 100℃.T-type zeolite was obtained as a pure phase from the reaction mixture with the mole ratio as.32>SiO_(2)/Al_(2)O_(3)>240.34>M_(2)O/SiO_(2)>0.300.30>K_(2)O/M_(2)O>0.23 H_(2)O/SiO_(2)=16In the induction period of T-type zeolite or amorphous phase region there were no spontaneous nucleation.A kinetic model on the crystal growth of rod-like T-type zeolite was suggested as dx/dt=kx2/3,where k is related to the composition of original gel,especially to the temperature.Ec of T-type zeolite was measured as 16.7Kcal/mol for the system of 1.95K_(2)O·5.85Na_(2)O·Al_(2)O_(3)·26SiO_(2)·416H_(2)O.

关 键 词：晶体生长 沸石分子筛 圆柱形 生成机理 

分 类 号：O78[理学—晶体学]