本文已被:浏览 2903次 下载 2202次
投稿时间:2014-07-15 修订日期:2014-07-25
投稿时间:2014-07-15 修订日期:2014-07-25
中文摘要: 高品位脉石英矿经提纯后可替代天然水晶规模生产高纯石英砂,开展其矿石性质的研究十分必要。在偏光显微镜进行镜下观察的基础上,结合XRD、ICP和SEM-EDS测试手段研究了青海某地脉石英矿的化学成分、矿物组成、嵌布粒度及杂质元素赋存状态等工艺矿物学特征,并对矿石进行可选性试验。结果表明:该脉石英矿中两期石英粒度差异大,含有大量包裹体;脉石矿物与后期石英共生,主要由白云母、萤石和铁质矿物组成;总体嵌布特征分选类型属难解离难选型,杂质元素赋存状态复杂;矿石经过初步提纯,细粒级石英精砂SiO2纯度为99.91%,达到高纯石英砂标准。
Abstract:Refined vein quartz ore can replace berg crystal to produce high purity quartz sand in large scale, and it is necessary to carry out study on ore properties for the planning of processing technology. Based on the observation under polarizing microscope, the process mineralogy of the quartz ore from Qinghai province was studied with some modern testing methods like XRD, ICP, SEM-EDS, including chemical composition, mineral assemblage and dissemination characteristics, occurrences of impurities, and optional test of the ore was conducted. The result suggested: the quartz formed in two periods has great difference in particle size, containing a large amount of inclusions; Gangue minerals and later quartz formed in one period, mainly composed of muscovite, fluorite and iron mineral; The overall character of dissemination indicated that the vein quartz ore was difficult to be dissociated and purified, and it’s occurrence state of impurity elements is complicated; After preliminary purification, the purity of SiO2 was 99.91% in fine-grained quartz sand, reached the standard of high purity quartz sand.
文章编号:20140715002 中图分类号: 文献标志码:
基金项目:
作者 | 单位 | |
吴 逍 | 西南科技大学矿物材料及应用研究所 | wuxiaoyhm@163.com |
孙红娟* | 西南科技大学矿物材料及应用研究所 | sunhongjuan@swust.edu.cn |
彭同江 | 西南科技大学矿物材料及应用研究所 西南科技大学分析测试中心 | |
鲜海洋 | 西南科技大学矿物材料及应用研究所 |
引用文本:
吴 逍,孙红娟,彭同江,鲜海洋.青海某地脉石英矿工艺矿物学研究及可选性试验[J].矿冶,2015,24(2):71~77.
吴 逍,孙红娟,彭同江,鲜海洋.青海某地脉石英矿工艺矿物学研究及可选性试验[J].矿冶,2015,24(2):71~77.