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石英砂除杂提纯方法比较研究

发表时间:2010-09-15  浏览量:1956  下载量:680
全部作者: 吴华婷,谢丽珊,许雅芳,陈建南,林榖承,郑小安,颜桂炀
作者单位: 福建师范大学化学与材料学院;福建省高分子材料重点实验室
摘 要: 在草酸提纯法的基础上,以沙县竟成公司提供的石英砂为原料,结合不同的处理方法(如:酸浸静置、磁选、超声波等),对浸出液中铁、铝离子的浓度进行化学分析,对处理前后的样品辅以X射线衍射(X-ray diffraction,XRD)、X射线荧光(X-ray fluorescence,XRF)、白度测定等表征手段,对比各种除杂方法的提纯效果。实验结果表明:采用超声波处理的提纯效果较佳,样品A中铁的去除率达到4.368 0 mg Fe/(g Quartz·L H2C2O4·h),样品B中铝的去除率达到9.486 4 mg Al/(g Quartz·L H2C2O4·h);样品的白度值明显提高,且不破坏石英砂的晶体结构。
关 键 词: 无机化学;石英砂;除铁;除铝;超声波;提纯
Title: Study on purification methods of removing impurity from quartz
Author: WU Huating, XIE Lishan, XU Yafang, Chen Jiannan, LIN Gucheng, ZHENG Xiaoan, YAN Guiyang
Organization: College of Chemistry and Materials Science, Fujian Normal University; Key Laboratory of Polymer Materials of Fujian Province
Abstract: Based on oxalic acid purification method, quartz offered by Shaxian Jingcheng Company was treated with different methods (i.e. acid leaching, magnetic separation and ultrasound). In order to compare the purifying effect of various methods, the concentration of iron and aluminum, the characterization of X-ray diffraction (XRD), X-ray fluorescence (XRF) and whiteness were analyzed. The primary experimental results show that the effect of ultrasonic treatment is better. Sample A, the iron content decreased rate gets to 4.368 mg Fe/(g Quartz·L H2C2O4·h). Sample B, the aluminum ion content decreased rate gets to 9.486 4 mg Al/(g Quartz·L H2C2O4·h). The whiteness of sample improved obviously without destroying the crystal structure of quartz.
Key words: inorganic chemistry; quartz; removing iron; removing aluminum; ultrasound; purification
发表期数: 2010年9月第17期
引用格式: 吴华婷,谢丽珊,许雅芳,等. 石英砂除杂提纯方法比较研究[J]. 中国科技论文在线精品论文,2010,3(17):1752-1756.
 
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