典型光伏坩埚用高纯石英砂工艺属性对比研究  

Comparative Study on High Purity Quartz Sand Used in Typical Photovoltaic Crucible

作　　者：唐宇 孙红娟[1,2] 刘波[1,2] 李洪顺 彭同江[1,2] Tang Yu;Sun Hongjuan;Liu Bo;Li Hongshun;Peng Tongjiang(Key Laboratory of Solid Waste Treatment and Resource Recycling,Ministry of Education,Southwest University of Science and Technology,Mianyang,Sichuan 621010;Institute of Mineral Materials and Application,Southwest University of Science and Technology,Mianyang,Sichuan 621010)

机构地区：[1]西南科技大学固体废物处理与资源化教育部重点实验室,四川绵阳621010 [2]西南科技大学矿物材料及应用研究所,四川绵阳621010

出　　处：《非金属矿》2024年第5期37-41,共5页Non-Metallic Mines

基　　金：四川省知识产权局知识产权专项(2022-ZS-00031)。

摘　　要：以美国矽比科公司、挪威TQC公司和中国江苏太平洋石英股份有限公司生产的3种坩埚用高纯石英砂为研究对象,通过激光粒度分析、光学显微镜、扫描电镜、X射线衍射等分析测试手段,对3种坩埚用高纯石英砂的粒度分布、微观形貌、化学成分、晶胞参数等特征进行分析。结果表明,美国矽比科公司和挪威TQC公司生产的坩埚用高纯石英砂粒度集中在200μm左右,形状和尺寸均匀程度均优于中国江苏太平洋石英股份有限公司生产的石英砂;3个样品均存在包裹体和个别元素含量略高情况,但不影响石英坩埚生产;石英砂化学元素含量会影响晶胞参数的变化,3个样品a值均偏小,中国江苏太平洋石英股份有限公司石英砂样品c值偏大;结合不同浸出介质石英砂微观形貌对比分析,3个石英样品均经过高温煅烧处理及氢氟酸酸浸处理,挪威TQC公司生产的坩埚用高纯石英砂中还存在硝酸酸浸的痕迹。Three kinds of high purity quartz sand for crucible production by Sibelco,Norway TQC and Jiangsu Pacific Quartz Co.,Ltd.were taken as the research objects.The characteristics of particle size distribution,micro-morphology,chemical composition and crystal cell parameters of the three kinds of high purity quartz sand for crucible were analyzed by means of laser particle size analysis,optical microscope,scanning electron microscope and X-ray diffraction.The results show that the particle size of high purity quartz sand for crucible production by Sibelco and TQC are concentrated at about 200μm,and the uniformity of shape and size is better than that of quartz sand produced by Jiangsu Pacific Quartz Co.,Ltd.The contents of inclusions and individual elements are slightly higher in the three samples,but it does not affect the production of quartz crucible.The content of chemical elements in quartz sand will affect the change of crystal cell parameters,the a value of the three samples are small,and the c value of the quartz sand produced by Jiangsu Pacific Quartz Co.,Ltd.is large.The comparative analysis of the micro-morphology of quartz sand with different leaching media shows that the three quartz samples are all treated with high temperature calcination and hydrofluoric acid leaching,and there are traces of nitric acid leaching in the high p urity quartz sand for crucible production by TQC.

关 键 词：光伏 石英坩埚 高纯石英砂 化学成分 气液包裹体 

分 类 号：TD912[矿业工程—选矿]