| 蒙脱石预处理对制备柱撑蒙脱石的促进作用研究 |
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| 引用本文： | 丛兴顺,王力.蒙脱石预处理对制备柱撑蒙脱石的促进作用研究[J].工业催化,2007,15(10):60-63. |
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| 作者姓名： | 丛兴顺 王力 |
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| 作者单位： | 1.枣庄学院化学化工系, 山东 枣庄 277160； 2.山东科技大学化工与环境工程学院, 山东 青岛 266510 |
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| 摘 要： | 在制备柱撑蒙脱石的过程中，首次提出了蒙脱石的预处理工艺，并以莱西钙基膨润土为原料，研究了预处理方法、预处理时间、料浆浓度、分散剂种类及用量对蒙脱石分散程度的影响，将钙基蒙脱石颗粒分散达到0.964 μm。经过预处理后，用钙基蒙脱石直接制备柱撑蒙脱石，并用SEM、XRD、DTA-TG和SRF等进行了表征。经300 ℃焙烧2 h后，其层间距为1.262 nm，热稳定性达588 ℃，此法省去了蒙脱石的钠化改性，简化了制备工艺。
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| 关 键 词： | 蒙脱石预处理 柱撑蒙脱石 膨润土
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| 文章编号： | 1008-1143（2007）10-0060-04 |
| 修稿时间： | 2007-05-27 |
Studies On the promotional effects of montmorillonite pretreatment on preparation of pillared montmorillonite |
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| CONG Xingshun,WANG Li.Studies On the promotional effects of montmorillonite pretreatment on preparation of pillared montmorillonite[J].Industrial Catalysis,2007,15(10):60-63. |
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| Authors: | CONG Xingshun WANG Li |
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| Affiliation: | 1.Department of Chemistry, Zaozhuang University, Zaozhuang 277160, Shandong,China; 2.School of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266510, ShanDong,China |
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| Abstract: | Montmorillonite pretreatment was proposed for synthesis of pillared montmorillonite(PILM). Influence of pretreatment method, pretreatment time, concentration of suspension, types and amount of dispersant on the average particle size of montmorillonite was studied using Laixi Ca-bentonite as the starting material. Ca-montmorillonite with average particle size of 0.964 μm was obtained after pretreatment and directly used for synthesis of PILM. The PILM was characterized by SEM, XRD, DTA-TG and XRF. The results showed that the PILM had good thermal stability with basal spacing of 1.262 nm after calcination at 300 ℃ for 2 h. Montmorillonite pretreatment simplified the preparation cycle by eliminating the sodium modification step. |
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| Keywords: | montmorillonite pretreatment pillared montmorillonite(PILM) bentonite |
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