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Purification Mechanism of Quartz Sand by Combination of Microwave Heating and Ultrasound Assisted Acid Leaching Treatment

文献类型：期刊论文

作者Li, Feifei1,3; Jiang, Xuesong1,3; Zuo, Qiuxia4; Li, Jingwei2,3; Ban, Boyuan3; Chen, Jian3
刊名SILICON
出版日期2020-03-27
ISSN号1876-990X
关键词Iron removal High purity quartz Microwave treatment Ultrasound Acid leaching
DOI10.1007/s12633-020-00457-7
通讯作者Chen, Jian(jchen@rntek.cas.cn)
英文摘要Iron is a major impurity in quartz sand and must be strictly removed in many applications. However, the iron removal rate in most of the conventional purification process is not high enough. In this study, a fast, low-energy consuming, environment-friendly and simple process for purifying quartz is demonstrated by a combination of microwave heating and ultrasound-assisted acid leaching treatment. Using the characteristics of selective heating of microwave, the micro-inclusions burst and generate cracks in the surrounding quartz matrix far below the alpha/beta phase transition temperature, which enables removal of the impurities in the subsequent processing steps and reduces iron diffusion into the quartz matrix. Microwave process sequence, time, and temperature are all important factors, and appropriate parameters need to be explored. Ultrasound can assist acid leaching removal of Fe impurities through the cracks. Under optimized conditions, the iron content can be reduced to below 0.167 ppmw with one single purification pass.
WOS关键词SILICA SAND ; IRON REMOVAL ; IMPURITY ; FRACTURE
资助项目National Natural Science Foundation of China[51874272] ; National Natural Science Foundation of China[51804294] ; Anhui Provincial Natural Science Foundation[1808085ME121] ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chines e Academy of Sciences[ECL2019ZD005] ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chines e Academy of Sciences[PECL2018QN002] ; State Key Laboratory of Refractories and Metallurgy (Wuhan University of Science and Technology)[G201910] ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows[2016LH0017] ; CASHIPS Director's Funds[YYJJ201624] ; State Key Laboratory of Refractories and (Wuhan University of Science and Technology)[G201910] ; State Key Laboratory of Pollution Control and Resource Reuse Foundation, iCET[PCRRF18017]
WOS研究方向Chemistry ; Materials Science
语种英语
出版者SPRINGER
WOS记录号WOS:000521893800001
资助机构National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chines e Academy of Sciences ; State Key Laboratory of Refractories and Metallurgy (Wuhan University of Science and Technology) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows ; CASHIPS Director's Funds ; State Key Laboratory of Refractories and (Wuhan University of Science and Technology) ; State Key Laboratory of Pollution Control and Resource Reuse Foundation, iCET
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/103541]  
专题中国科学院合肥物质科学研究院
通讯作者Chen, Jian
作者单位1.Univ Sci & Technol China, Hefei 230026, Peoples R China
2.Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China
3.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Key Lab Photovolta & Energy Conservat Mat, Hefei 230088, Peoples R China
4.Shandong Aluminum Vocat Coll, Weihai 264400, Peoples R China
推荐引用方式
GB/T 7714		 Li, Feifei,Jiang, Xuesong,Zuo, Qiuxia,et al. Purification Mechanism of Quartz Sand by Combination of Microwave Heating and Ultrasound Assisted Acid Leaching Treatment[J]. SILICON,2020.
APA Li, Feifei,Jiang, Xuesong,Zuo, Qiuxia,Li, Jingwei,Ban, Boyuan,&Chen, Jian.(2020).Purification Mechanism of Quartz Sand by Combination of Microwave Heating and Ultrasound Assisted Acid Leaching Treatment.SILICON.
MLA Li, Feifei,et al."Purification Mechanism of Quartz Sand by Combination of Microwave Heating and Ultrasound Assisted Acid Leaching Treatment".SILICON (2020).

入库方式： OAI收割

来源：合肥物质科学研究院

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