湖北某高硫铁矿选别试验研究  

Mineral Processing Test for High-Sulfur Iron Ore from Hubei Province

作　　者：李建华[1] 孙小俊[1] 

机构地区：[1]大冶有色金属集团控股有限公司,湖北黄石435005

出　　处：《矿冶工程》2015年第1期57-60,共4页Mining and Metallurgical Engineering

摘　　要：系统研究了某高硫铁矿降低铁精矿中硫含量的选别工艺。根据降硫工艺的先后顺序,采用先磁选再降硫和先降硫再磁选两种工艺流程。先磁选后降硫工艺,采用再磨磁选和浮选两种方法降硫,再磨磁选降硫工艺得到铁精矿品位67.08%(含硫0.14%),回收率91.91%;浮选降硫工艺得到铁精矿品位64.90%(含硫0.13%),回收率91.90%。先降硫后磁选工艺得到铁精矿品位63.19%(含硫0.13%),回收率88.43%。推荐先磁选后降硫工艺。Beneficiation technology of a high-sulfur iron ore has been systematically studied in order to reduce the sulfur content in iron concentrates. Two flowsheets,magnetic separation-sulfur reduction（ MS-SR） and sulfur reductionmagnetic separation（ SR-MS）,were adopted. Regrinding-magnetic separation and flotation process were introduced respectively in MS-SR flowsheet for sulfur reduction. The TFe grade and recovery for iron concentrate obtained by regrinding-magnetic separation were 67. 08%（ with sulfur content of 0. 14%） and 91. 91%,respectively,while the corresponding indicators for concentrate obtained by flotation were 64. 90%（ with sulfur content of 0. 13%） and 91.90%. For SR-MS flowsheet,the iron grade and recovery of iron concentrate were 63. 19%（ with sulfur content of 0.13%） and 88. 43%,respectively. MS-SR approach is recommended for its superior performance.

关 键 词：高硫铁矿 铁精矿 磁选 浮选 降硫 

分 类 号：TD951.1[矿业工程—选矿]