青海某微细粒嵌布磁铁矿选矿试验研究  

Experiment Study on the Beneficiation of a Micro-fine Magnetite Ore from Qinghai

作　　者：刘金长[1] 

机构地区：[1]酒泉钢铁(集团)有限责任公司钢铁研究院

出　　处：《金属矿山》2009年第6期52-55,共4页Metal Mine

摘　　要：为开发利用青海某微细粒嵌布磁铁矿,对其进行了选矿试验研究。试验结果表明:采用单一磁选工艺,即使将矿石细磨至-500目95%,也不能使精矿铁品位达到60%以上。而采用磁选—反浮选联合工艺,在最终磨矿细度为-400目80%时,可获得精矿品位为60.11%,铁回收率为60.20%的选别指标;在最终磨矿细度为-400目95%时,可获得精矿铁品位为67.42%,铁回收率为56.92%的选别指标。To exploit and utilize a micro-fine magnetite ore from Qinghai, beneficiation tests were made on it. The resuits show that adoption of single magnetic separation can not obtain an iron concentrate grade of over 60% even if the ore is ground to 95% -500 mesh. The combined process of magnetic separation and reverse flotation can obtain an iron concentrate grading 60.11% at a recovery of 60.20% at a final grinding size of 80% -400 mesh, and an iron concentrate grading 67.42% at a recovery of 56.92% at a final grinding size of 95% -400 mesh.

关 键 词：微细粒嵌布磁铁矿 磁选 反浮选 

分 类 号：TD952.7[矿业工程—选矿] TD952