Experimental Study on the Comprehensive Utilization of Quartz Resources of a Sandy Kaolin in Jiangxi Province
With the growth of photovoltaic installations,the demand for quartz sand for photovoltaic glass is rapidly increasing.The increasing consumption of high-quality quartz resources promotes the utilization of low-quality quartz resources such as kaolin associated quartz sand as raw materials.In this study,one sandy kaolin with 63.53%SiO2,26.10%Al2O3 and 1.10%Fe2O3 in Jiangxi province was purified based on classification.The +40 mesh(450 μm)fraction was processed by magnetic separation-flotation to obtain a non-yellow skin and non-black spot sheet sand product with SiO2 content of 99.94%.The 40-140 mesh(106-450 μm)fraction was purified by magnetic separation-scrubbing-flotation-acid leaching,producing a high-quality quartz sand for photovoltaic glass with 99.90%SiO2,76.40 μg/g Fe2O3,and 580.87 μg/g Al2O3,which meets the quality requirements for photovoltaic sand in JC/T 2314-2015"Silicon based Raw Materials for Photovoltaic Glass".
NETL
NSTL
万方数据
