国内某难选铁矿石工艺矿物学研究  

Process Mineralogy Study of an Refractory Iron Ore in China

作　　者：王炬 陈洲 袁启东 田一安 WANG Ju;CHEN Zhou;YUAN Qidong;TIAN Yi'an(Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.;National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources Co.,Ltd.)

机构地区：[1]中钢集团马鞍山矿山研究总院股份有限公司 [2]华唯金属矿产资源高效循环利用国家工程研究中心有限公司

出　　处：《现代矿业》2022年第7期131-134,共4页Modern Mining

基　　金：“十四五”国家重点研发计划项目(编号:2021YFC2902400)。

摘　　要：为了合理开发利用国内某难选铁矿,通过多元素分析、铁物相分析、显微镜鉴定等手段对其化学组成、矿物含量、结构构造、嵌布特征等进行了详细的工艺矿物学研究。研究结果表明:该矿石主要有用铁矿物为磁铁矿和少量赤(褐)铁矿,主要脉石矿物为碳酸盐、长石、石英以及黏土;矿石和岩石主要具层纹状构造、块状构造和浸染状构造,主要结构有粒状结构、条带结构、斑状结构、鳞片状结构、脉状结构和浸染状结构;黏土和绿泥石中均包含较多微细粒铁矿物,共生关系紧密;矿石中有用铁矿物磁铁矿和赤(褐)铁矿属微细粒嵌布,难以单体解离。In order to rationally develop and utilize a refractory iron ore in China,the chemical composition,mineral content,structure and distribution characteristics of the process minerals were studied in detail by means of multi-element analysis,iron phase analysis and microscope identification.The results show that the main useful iron minerals are magnetite and a small amount of hematite and the main gangue minerals are carbonate,feldspar,quartz and clay.The ore and rock mainly have laminar structure,massive structure and disseminated structure,and the main structures are granular structure,strip structure,porphyritic structure,scale structure,veined structure and disseminated structure.There are many fine iron minerals in clay and chloritic,and the symbiotic relationship is close.There are iron minerals magnetite and hematite(brown)iron,which are very fine grained and difficult to be liberated in the ore.

关 键 词：难选铁矿 磁铁矿 工艺矿物学 嵌布特征 

分 类 号：TD951[矿业工程—选矿]