The sample comes from a quartzite mine in Gansu Province.After crushing to a maximum particle size of 3.2 mm,the SiO2 content is 99.10％,Al2O3 content is 0.26％,Fe2O3 content is 0.20％,and with a significant amount of epidermal disseminated iron.Through processes such as magnetic separation,flotation,or deep purification,it is pos-sible to ultimately produce photovoltaic low-iron quartz sand with 99.80％SiO2,0.014％Al2O3,and 0.005 1％Fe2O3,achieving high-value utilization of quartz sand and saving production costs for enterprises.
关键词
石英砂/深度提纯/光伏低铁石英砂
Key words
quartz sand/deep purification/low iron quartz sand for photovoltaic glass
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