| 羟基铝溶液及铝交联蒙脱土的研究 |
| STUDY ON HYDROXYLIC ALUMINUM SOLUTION AND ALUMINUM LINKED MONTMORILLONITE |
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| 摘要: 本文用(27)Al NMR法和8-羟基喹啉萃取法分别研究了羟基铝溶液中十三聚铝含量的变化规律,还用X-射线衍射法研究了铝交联蒙脱土d001的变化。研究结果表明,铝离子的聚合情况主要由羟铝比决定,而浓度影响不大。随着羟铝比的增加,溶液中单核铝离子含量减少,十三聚铝离子相对含量增加,所得铝交联蒙脱土的d001也随之增大。参照这些变化规律、控制羟基铝溶液的组成,可以制备各种层柱状铝交联蒙脱土复合物。 |
| 关键词: 羟基铝溶液 铝变联蒙脱土 27Al NMR 8-羟基喹啉萃取法 十三聚铝离子 单核铝离子 |
| 基金项目: |
| Abstract: There are many kinds of hydroxylic aluminum ions, among which [Al(H2O)6]3+, [Al2(OH)2(H2O)8]4+ and [Al13O4(OH)24(H2O)12]7+ (Al137+)are detected by 27Al NMR spectrum. The relative amount of Al137+ in the detectable aluminum is increased with raise the OH/Al mole ratio. The percent of mononuclear aluminum in hydroxylic aluminum solution is determined by 8-quinolinolate extraction method. The percent of mono-nuclear aluminum is decreased due to the increase of OH/Al mole ratio. The d001 of aluminum linked montmorillonite various with the relative amount of Al137+ and the percent of mononuclear aluminum in the solution. Various kinds of pillared interlayered complex may be prepared by controlling the OH/Al mole ratio of linked solution-hydroxylic aluminum solution. |
| Keywords: hydroxylic aluminum solution aluminum linked montmorillonite 27Al NMR 8-quinolinolate extraction 13-polyaluminum ion mono-nuclear aluminum ion |
| 投稿时间：1987-05-21 |
| 摘要点击次数: 1628 |
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| 华彤文,张弱非,项斯芬,潘景岐.羟基铝溶液及铝交联蒙脱土的研究[J].无机化学学报,1988,4(3):62-69. |
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