三门峡变质石英砂岩工艺矿物学和可选性研究  

Process Mineralogy and Beneficiability of Metamorphic Quartz Sandstone from Sanmenxia

作　　者：王路路 管俊芳[1] 宋昱晗[1] 孙睿 任子杰[1] 李航 Wang Lulu;Guan Junfang;Song Yuhan;Sun Rui;Ren Zijie;Li Hang(School of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan,Hubei 430070)

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

出　　处：《非金属矿》2024年第3期72-74,78,共4页Non-Metallic Mines

摘　　要：以三门峡地区变质石英砂岩为对象,进行了矿石的工艺矿物学和可选性试验研究。结果表明,该矿石为变余砂状结构,致密块状构造,矿石的SiO_(2)含量(质量分数,下同)为97.60%,杂质元素主要是铝、铁、钾、钙、镁、磷等。目的矿物为石英,磨圆较好,次生加大发育(硅质胶结),杂质矿物有长石、金红石、电气石和赤褐铁矿等。石英粒径分布在0.1~0.4 mm,+0.1 mm石英的累计分布率达到94.89%;对该矿石试样采用“磨矿-分级-磁选”工艺提纯后,制备石英砂可满足JC/T 529-1994平板玻璃用I类优等品指标要求,采用“磨矿-分级-磁选-浮选”工艺后,石英砂可满足QB/T 2196-1996仪器玻璃用石英砂产品指标要求,采用“磨矿-分级-磁选-浮选-酸浸”工艺后,SiO_(2)含量提升至99.91%,杂质元素Fe_(2)O_(3)为0.0086%,Al_(2)O_(3)为0.045%,石英砂可满足JC/T 2314-2015光伏玻璃用硅质原料指标要求。In this paper,the process mineralogy of metamorphic quartz sandstone in Sanmenxia area is systematically studied,and the beneficiability test of ore is carried out.The results show that,the ore has a blastosand-like structure and a dense massive structure.The content of SiO_(2)in the ore is 97.60%,and the impurity elements are mainly aluminum,iron,potassium,calcium,magnesium and phosphorus.The target mineral is quartz,well rounded,secondary enlarged development(siliceous cementation),and the impurity minerals are feldspar,rutile,tourmaline and red limonite.The quartz particle size is 0.1-0.4 mm,and the cumulative distribution rate of+0.1 mm quartz is 94.89%;After the ore sample is purified by the grindingclassification-magnetic separation process,the prepared quartz sand meets the requirements of Class I excellent products for JC/T 529-1994 flat glass;after the grinding-classification-magnetic separation-flotation process,the quartz sand can meet the product requirements for QB/T 2196-1996 instrument glass;after the grinding-classification-magnetic separation-flotation-acid leaching process,SiO_(2)content increases to 99.91%,impurity elements Fe_(2)O_(3)is 0.0086%,Al_(2)O_(3)is 0.045%,quartz sand can meet the standard for JC/T 2314-2015 photovoltaic glass silica raw materials.

关 键 词：石英 变质石英砂岩 工艺矿物学 可选性试验 

分 类 号：TD97[矿业工程—选矿]