含锌铁氧化矿石选别研究  

Study on Separation of Oxidized Ore with Zinc and Iron

作　　者：杨金林[1] 马少健[1] 苏秀娟[1] 莫伟[1] 封金鹏[1] 王桂芳[1] 

机构地区：[1]广西大学资源与冶金学院,广西南宁530004

出　　处：《矿业研究与开发》2012年第3期50-54,共5页Mining Research and Development

基　　金：教育部新世纪优秀人才支持计划项目(NCET-10-0091);广西自然科学基金资助项目(2010GXNSFD013005);广西研究生教育创新计划与广西大学科研基金资助项目(105931001009)

摘　　要：针对含锌、铁氧化矿石,采用浮选、磁选、重选等常规选矿方法,碱性浸出、硫酸浸出等常规浸出方法,常规还原焙烧-磁选以及深度还原-磁选等方法,考察了相关因素对锌、铁回收的影响。研究结果表明,浮选、磁选、重选等常规选矿方法,碱性浸出、硫酸浸出等常规浸出方法以及常规还原焙烧-磁选方法均不能使锌、铁有效富集,而采用深度还原-磁选方法,获得的铁精矿铁品位与铁回收率均在90%以上,金属化率在92%以上,锌挥发率在97%以上,实现了锌、铁综合回收。Aimed at the oxidized ore with zinc and iron, by the conventional methods for mineral processing, such as floatation, magnetic separation, gravity separation, alkaline leaching and sulfuric acid leaching, roasting - magnetic separation and deep reduction- magnetic separation, some related factors influencing the recovery of zinc and iron were analyzed. The results show that zinc and iron were not enriched with floatation, magnetic separa- tion,gravity separation, alkaline leaching, sulfuric acid leaching and roasting - magnetic separation. However, the separation and recovering of zinc and iron could be achieved by deep reduction - magnetic separation,the iron grade of concentrate and the re- covery of iron both was greater than 90%, metallization rate and evaporation rate was greater than 92% and 97% respectively.

关 键 词：铁帽 氧化矿 浸出 焙烧 深度还原 磁选 

分 类 号：TD925.7[矿业工程—选矿]