广东某高岭土矿中石英选矿提纯试验研究  

Experimental Study on Beneficiation of Kaolinite Associated Quartz in Guangdong

作　　者：张玉梅 任子杰[1,2,3] 高惠民 印航[4] 谢俊 郝文华 ZHANG Yumei;REN Zijie;GAO Huimin;YIN Hang;XIE Jun;HAO Wenhua(School of Resources and Environment Engineering,Wuhan University of Technology,Wuhan 430070,Hubei,China;Hubei Key Laboratory of Mineral Resources Processing and Environment,Wuhan 430070,Hubei,China;Hepu County Silicon Material Industry Technology Research Center,Beihai 536000,Guangxi,China;China energy green building material Co.,Ltd.,Wuhan 430015,Hubei,China;State Key Laboratory of Silicate Building Materials,Wuhan University of Technology,Wuhan 430070,Hubei,China;China Silicon Industry Group Co.,Ltd.,Beijing 100194,China)

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070 [2]矿物资源加工与环境湖北省重点实验室,湖北武汉430070 [3]合浦县硅材料产业技术研究中心,广西北海536000 [4]中能建绿色建材有限公司,湖北武汉430015 [5]武汉理工大学硅酸盐建筑材料国家重点实验室,湖北武汉430070 [6]中硅工业集团有限公司,北京100194

出　　处：《矿产保护与利用》2023年第4期68-72,共5页Conservation and Utilization of Mineral Resources

摘　　要：对广东某伴生有石英的高岭土矿进行选矿试验研究,以期获得符合要求的石英砂产品。高岭土原矿捣浆、分级分离出−0.045 mm粒级高岭土产品后得到尾砂,尾砂中占比99.13%的+0.1 mm粒级物料可用作玻璃用石英原料。对可用作玻璃原料的+0.6 mm粒级进行了“拣选—磨矿—磁选”与“磨矿—磁选”两种工艺对比试验,结果表明,拣选对最终选别指标影响较小,采用磨矿—磁选即可;+0.6 mm粒级经磁选后均可获得Fe_(2)O_(3)含量小于120μg/g的石英精矿,−0.60+0.10 mm粒级产品经磨矿—磁选可获得SiO_(2)含量为99.04%、Fe_(2)O_(3)含量为104.46μg/g的石英精矿,可达到光伏玻璃用石英砂的标准。该研究有助于高岭石伴生石英砂的综合利用,可提升伴生石英砂的价值。The experimental study on mineral processing of kaolinite accompanied by quartz in Guangdong was carried out in order to obtain quartz sand products meeting the requirements.The tailings were obtained after the kaolin raw ore was mashed and graded to separate the−0.045 mm particle size kaolin product.The+0.1 mm grain size material accounting for 99.13%of the tailings can be used as quartz raw material for glass.Two kinds of process comparison tests of"color sorting−grinding−magnetic separation"and"grinding−magnetic separation"were conducted on the+0.6 mm particle size.Results indicated that,color sorting had a relatively small impact on the final separation index,so grinding−magnetic separation was sufficient;Quartz concentrate with Fe_(2)O_(3) content less than 120μg/g and quartz concentrate with SiO_(2) content of 99.04%,Fe_(2)O_(3) content of 104.46μg/g were obtained by magnetic separation from+0.6 mm particle size and grinding−magnetic separation from−0.60+0.10 mm particle size,respectively,which can meet the standard of quartz sand for photovoltaic glass.This study is helpful to the comprehensive utilization of kaolinite associated quartz sand,and can enhance the value of associated quartz sand.

关 键 词：高岭土 石英砂 选矿提纯 光伏玻璃 磁选 

分 类 号：TD973.2[矿业工程—选矿]