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

doi:10.1007/s12633-020-00457-7

	Purification Mechanism of Quartz Sand by Combination of Microwave Heating and Ultrasound Assisted Acid Leaching Treatment
	Li, Feifei 2,3; Jiang, Xuesong 2,3; Zuo, Qiuxia 1; Li, Jingwei 2,4; Ban, Boyuan 2; Chen, Jian 2
刊名	SILICON
	2020-03-27
关键词	Iron removal High purity quartz Microwave treatment Ultrasound Acid leaching
ISSN号	1876-990X
DOI	10.1007/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.
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关键词	SILICA SAND ; IRON REMOVAL ; IMPURITY ; FRACTURE
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
内容类型	期刊论文
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.Shandong Aluminum Vocat Coll, Weihai 264400, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Key Lab Photovolta & Energy Conservat Mat, Hefei 230088, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China 4.Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, 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).