纳米氧化铝的制备
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- 英文论文题名：The Preparation of Nano-alumina
- 论文作者：刘艳霞
- 英文论文作者：LIU Yanxia ; Department of Chemistry ; Jining Normal University
- 年：2016
- 作者机构：集宁师范学院化学系;
- 论文关键词：煤矸石 ; 纳米氧化铝 ; 分散剂 ; 制备
- 英文论文关键词：Coal gangue ; Nano-Aluminum ; Dispersant ; Preparation
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十六分会：纳米材料合成与组装
- 语种：中文
- 分类号：TQ133.1;TB383.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十六分会 ; 纳米材料合成与组装
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：145k
- 原文格式：D
- 会议级别：全国
摘要
以内蒙古准格尔旗高铝煤矸石为原料,采用沉淀法制备纳米氧化铝。实验中通过利用高温焙烧的方法使煤矸石具有一定活性。然后利用盐酸酸浸法将使矸石中氧化铝和二氧化硅达到分离,通过调节p H值来除掉氯化铝滤液中的杂质,通过加入三乙醇胺、正丁醇、无水乙醇、PVP40作为分散剂来抑制氧化铝颗粒的硬团聚,并研究了不同分散剂对氧化铝颗粒硬团聚的影响。最后对所得粉体进行了各项表征。通过SEM(扫描光电子显微镜)、能谱和XRD对所获得产品进行分析。实验结果表明:以正丁醇为分散剂能够获得分散性较好的产品,且当正丁醇与氯化铝溶液比例为1:25时纳米氧化铝形态最佳。
The raw coal gangue of this experiment is taken from Zhun geer zone in Inner Mongolia. This experiment adopts the precipitation of preparation of nano-aluminum. In this study, we use acid leaching method to separate alumina and silicon dioxide in roast coal gangue,and the impurities of aluminum chloride are removed by adjusting p H. Then, use acid leaching method to Using triethanolamine, n-butyl alcohol.anhydrous ethanol and PVP40,as dispersant, the experiment adopts the method of precipitation to produce aluminum oxide nano-powder, and by applying orthogonal experiment, it studies the affect of agglomeration during the process of aluminum oxide nano-powder of different kinds and proportions of dispersing agent to characterize the final nano-powder.SEM(scanning electron microscope)、XRD had been used to characterize the ultrafine alumina powder. The experimental results show that n-butyl alcoholas dispersant can obtain products with better dispersion, and it is the best form of nano alumina when the ratio of n-butyl alcohol with aluminum chloride solution is1:25.
The raw coal gangue of this experiment is taken from Zhun geer zone in Inner Mongolia. This experiment adopts the precipitation of preparation of nano-aluminum. In this study, we use acid leaching method to separate alumina and silicon dioxide in roast coal gangue,and the impurities of aluminum chloride are removed by adjusting p H. Then, use acid leaching method to Using triethanolamine, n-butyl alcohol.anhydrous ethanol and PVP40,as dispersant, the experiment adopts the method of precipitation to produce aluminum oxide nano-powder, and by applying orthogonal experiment, it studies the affect of agglomeration during the process of aluminum oxide nano-powder of different kinds and proportions of dispersing agent to characterize the final nano-powder.SEM(scanning electron microscope)、XRD had been used to characterize the ultrafine alumina powder. The experimental results show that n-butyl alcoholas dispersant can obtain products with better dispersion, and it is the best form of nano alumina when the ratio of n-butyl alcohol with aluminum chloride solution is1:25.
引文
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[2]朱宝忠,谢承卫.煤矸石综合利用的研究进展[J].贵州大学学报.2007,24(5):520-525
[3]付高峰,毕诗文,孙旭东等.超细氧化铝粉末制备技术[z].有色矿冶,2000,16(1):39-41
[4]李绍好,李法强,马培华.纳米粉体团聚机理及消除方法[J].盐湖研究,2005,13(1):31-36
[5]杨利霞.高铝煤矸石制备超细氧化铝和硅酸钠联产工艺的研究[J].内蒙古工业大学学报2010.