摘要
为尽可能综合回收国外某多金属伴生铁矿中的有用矿物,首先进行了原矿的矿石性质研究,结果表明,原矿主要可回收的目的矿物为磁铁矿,其次为铁闪锌矿、方铅矿和石榴石;原矿中磁铁矿主要呈较易回收的粗粒斑状嵌布,铁闪锌矿嵌布粒度较粗,主要被方铅矿交代,两者共生关系紧密,石榴石粒度较粗,主要呈不规则粒状及其集合体嵌布,其中包裹细粒磁铁矿等。在此基础上进行了选矿工艺回收试验,最终确定了弱磁选铁-混合浮选铅锌-强磁+摇床+酸浸回收石榴石的选矿工艺,该工艺获得了含铁66.08%、铁回收率79.57%的铁精矿,含铅锌分别为20.69%和30.48%、铅锌回收率分别为79.68%和83.59%的铅锌混合精矿,石榴石品位为93.45%、回收率为21.54%的石榴石精矿,实现了矿石中有用矿物的综合回收。
In order to comprehensively recover the useful minerals in some polymetallic associated iron ore abroad as much as possible,the ore properties of the raw ore are first studied.The results show that the main target minerals recovered from the raw ore are magnetite,followed by marmatite,galena and garnet.The magnetite in the raw ore is mainly distributed in coarse particle porphyritic form,which is easy to recover.The marmatite is distributed in coarse particle size,which is mainly metasomatized by galena.The symbiotic relationship between the two is close.The garnet particle size is coarse,which is mainly distributed in irregular granular form and its aggregates,and encloses fine magnetite.On this basis,the beneficiation process of LIMS to recover iron-bulk flotation to recover lead and zinc-HIMS+shaking table+acid leaching to recover garnet is finally determined.This process obtains iron concentrate with iron grade of 66.08% and iron recovery rate of 79.57%,lead and zinc mixed concentrate with lead and zinc grade of 20.69% and 30.48%,lead and zinc recovery rates of 79.68% and 83.59%,respectively,and garnet concentrate with garnet grade of 93.45%and recovery rate of 21.54%.It realizes the comprehensive recovery of useful minerals in the ores.
作者
张凛
骆洪振
徐健
杨含蓄
高春庆
王海亮
ZHANG Lin;LUO Hongzhen;XU Jian;YANG Hanxu;GAO Chunqing;WANG Hailiang(Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.,Maanshan 243000,China;National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources Co.,Ltd.,Maanshan 243000,China;National Metal Mine Solid Waste Treatment and Disposal Engineering Technology Research Center,Maanshan 243000,China)
出处
《中国矿业》
北大核心
2024年第11期229-236,共8页
China Mining Magazine
关键词
多金属伴生铁矿
工艺矿物学
选矿工艺
综合回收
石榴石提纯
polymetallic associated iron ore
process mineralogy
beneficiation processing
comprehensive recovery
garnet purification
