L沸石导向剂陈化机制的研究  

Studies on the Ageing Mechanism for the Directing Agent of Zeolite L

作　　者：李守贵[1] 李锡凯[1] 徐如人[1] 

机构地区：[1]吉林大学化学系,长春130023

出　　处：《高等学校化学学报》1992年第2期145-148,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：应用核磁共振和拉曼光谱研究了L沸石导向剂的陈化机制。实验结果表明,当铝源与硅源混合后铝酸根离子与硅酸根离子之间聚合反应很快,同时高聚态硅酸根离子发生了解聚。L沸石导向剂陈化反应的控制步骤是低聚态硅铝酸根离子之间或低聚态硅铝酸根离子与低聚态硅酸根离子之间的定向聚合反应。The ageing mechanism for the directing agent of zeolite L was studied by means of NMR and Laser-Raman spectroscopy. The experimental results show that after mixing the sources of alumina and silica the polymerization between aluminate and silicate anions is very rapid and at the same time the silicate anions of high degree of condensation are depolymerized. The controlling step of the ageing reaction for the directing agent of zeolite L is directional polymerization between aluminosilicate oligomers or between aluminosilicate and silicate oligomers.

关 键 词：L沸石 导向剂 陈化 NMR 

分 类 号：TQ314.269[化学工程—高聚物工业]