贝得石交联结构的研究  

STUDIES ON STRUCTURES OF CROSS-LINKING BEIDELLITES

作　　者：李连生[1] 张艳秋[1] 葛颖[1] 李丽云[2] 

机构地区：[1]吉林大学化学系 [2]中国科学院武汉物理所

出　　处：《石油学报（石油加工）》1992年第1期59-65,共7页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金;石油化工科学研究院资助课题

摘　　要：分别用聚合羟基Al和丙胺基三乙氧基硅烷[NH_2(CH_2)_3Si(OC_2H_5)_3]交联贝得石,应用X射线衍射、^(29)Si和^(27)Al-MAS NMR研究了其交联结构,证明了两种交联剂都与贝得石四面体Al成键相联。该有机硅交联贝得石高温灼烧后,形成的SiO_2柱子主要为棱锥体、三棱柱及其它多棱柱。The beidellite is cross-linked with hydroxy-aluminium and NH_2(CH_2)_3Si (OC_2H_5), respectively. The structures of cross-linking beidellites are studied by using XRD, ^(29)Si-and ^(27)Al-MAS NMR. It is shown that both the crossliking agents bond to aluminium atoms in tetrahedral sheet. The organic silicon agent intercalated beidellite after calcined at high temperature give rise to silica pillars which exist as pyramids, triangular prism and other forms of prism.

关 键 词：贝得石 交联结构 催化剂 材料 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]