| 用于除硅的铝盐改性膨润土的制备与表征 |
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| 引用本文： | 林涛,李雪,徐永建,张鼎军,朱振峰.用于除硅的铝盐改性膨润土的制备与表征[J].岩石矿物学杂志,2014,33(3):567-573. |
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| 作者姓名： | 林涛 李雪 徐永建 张鼎军 朱振峰 |
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| 作者单位： | 陕西科技大学 轻工与能源学院, 陕西省造纸技术及特种纸品开发重点实验室, 陕西 西安 710021;陕西科技大学 轻工与能源学院, 陕西省造纸技术及特种纸品开发重点实验室, 陕西 西安 710021;陕西科技大学 轻工与能源学院, 陕西省造纸技术及特种纸品开发重点实验室, 陕西 西安 710021;陕西科技大学 材料科学与工程博士后流动站, 陕西 西安 710021;贵州赤天化集团有限责任公司, 贵州 赤水 564700;贵州赤天化集团有限责任公司, 贵州 赤水 564700;陕西科技大学 材料科学与工程博士后流动站, 陕西 西安 710021 |
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| 基金项目： | 国家十二五科技支撑计划项目课题（2012BAD23B0201）；国家自然科学基金（20876092）；陕西科技大学学科带头人培育计划项目（20876092） |
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| 摘 要： | 改变了传统制备铝盐改性膨润土工艺中原料的添加顺序，增强了膨润土的膨胀性能。对制备的铝盐改性膨润土进行SEM、XRD、粒径分布以及红外光谱表征，并与原料-钠基膨润土进行了对比，得到了改性的机理。最后，利用钠基膨润土和铝盐改性膨润土吸附硅酸盐的现象以及性能对铝盐改性膨润土进行了评估。结果表明：铝盐改性膨润土的制备方法较为简单，省去了传统工艺中加碱调节pH值，采用先将水浴钠基膨润土混合，再加改性剂的添加顺序，得到的铝盐改性的膨润土有很好的除硅效果，最高可达99%。
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| 关 键 词： | 改性膨润土 制备 表征 吸附 |
| 收稿时间： | 2013/10/28 0:00:00 |
| 修稿时间： | 2014/4/1 0:00:00 |
The preparation and characterization of aluminum salt modified bentonite in desilication |
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| LIN Tao,LI Xue,XU Yong-jian,ZHANG Ding-jun and ZHU Zhen-feng.The preparation and characterization of aluminum salt modified bentonite in desilication[J].Acta Petrologica Et Mineralogica,2014,33(3):567-573. |
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| Authors: | LIN Tao LI Xue XU Yong-jian ZHANG Ding-jun and ZHU Zhen-feng |
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| Institution: | College of Light Industry and Energy, Shaanxi University of Science and Technology, Shaanxi Key Laboratory of Paper Technology and Specialty Paper, Xi''an 710021, China;College of Light Industry and Energy, Shaanxi University of Science and Technology, Shaanxi Key Laboratory of Paper Technology and Specialty Paper, Xi''an 710021, China;College of Light Industry and Energy, Shaanxi University of Science and Technology, Shaanxi Key Laboratory of Paper Technology and Specialty Paper, Xi''an 710021, China;Post-doctoral Research Center of Material Science and Engineering, Shaanxi University of Science and Technology, Xi''an 710021, China;Guizhou Chitianhua Group Co., Ltd., Chishui 564700, China;Guizhou Chitianhua Group Co., Ltd., Chishui 564700, China;Post-doctoral Research Center of Material Science and Engineering, Shaanxi University of Science and Technology, Xi''an 710021, China |
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| Abstract: | In this paper, the order of addition in the preparation of aluminum salt modified bentonite process is changed as compared with the traditional method. The expansion performance in aluminum salt modified bentonite is enhanced, and the modified bentonite is characterized by SEM, XRD, particle size distribution and FTIR and compared with the raw material Na-bentonite to deduce the mechanism of modification. Finally, the appearance is observed and the performance of adsorption is investigated. It is shown that, compared with the traditional method, the preparation of aluminum salt modified bentonite is relatively simple, and the addition order is different from that in the traditional method in that the bentonite is first mixed in water and then the modified agent is added. The modified bentonite has an efficient effect on silicate removal which can reach up to 99%. |
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| Keywords: | modified bentonite preparation characterization adsorption |
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