拜耳法赤泥磁选铁精矿浮选脱钛研究  

Titanium Removal by Flotation of Iron Concentrate from Magnetic Separation of Bayer Red Mud

作　　者：黄浩 吴中贤 乔波 马广喜 陶东平 HUANG Hao;WU Zhongxian;QIAO Bo;MA Guangxi;TAO Dongping(School of Resources and Environmental Engineering,Shandong University of Technology,Zibo 255049,Shandong,China;School of Chemical Engineering,China University of Mining and Technology,Xuzhou 221116,Jiangsu,China;College of Chemistry and Chemical Engineering,Shandong University of Technology,Zibo 255049,Shandong,China)

机构地区：[1]山东理工大学资源与环境工程学院,山东淄博255049 [2]中国矿业大学化工学院,江苏徐州221116 [3]山东理工大学化学与化工学院,山东淄博255049

出　　处：《矿冶工程》2024年第5期41-45,50,共6页Mining and Metallurgical Engineering

基　　金：国家自然科学基金(51804188)。

摘　　要：对山东某赤泥磁选铁精矿进行了反浮选脱钛研究,以油酸钠为捕收剂、玉米淀粉为赤铁矿抑制剂、硫酸为pH值调整剂,在pH=9、玉米淀粉和油酸钠用量分别为500 g/t和1500 g/t时,铁精矿中TiO_(2)品位可由6.90%降至2.73%,对应的TFe回收率为41.80%。捕收剂吸附量和红外光谱测试结果表明,油酸钠具有选择性吸附特性,进一步证实了采用油酸钠对赤泥磁选铁精矿进行反浮选脱钛的可行性。An iron concentrate obtained from magnetic separation of red mud from Shandong was used in an experimental study on the effect of titanium removal by reverse flotation.In the experiment,with sodium oleate as collector,corn starch as hematite depressant,sulfuric acid as pH regulator,pulp pH of 9,and the addition of corn starch and sodium oleate at an amount of 500 g/t and 1500 g/t,respectively,the iron concentrate was produced,with the TiO_(2) grade fell down from 6.90%to 2.73%,and the TFe recovery reaching 41.80%.The results of collector adsorption and IR analysis show that sodium oleate exhibits selective adsorption characteristics,which has further confirmed the feasibility of sodium oleate used in removing titanium by reverse flotation of iron concentrate obtained from magnetic separation of red mud.

关 键 词：赤泥 铁精矿 浮选 油酸钠 脱钛 捕收剂 抑制剂 

分 类 号：TD923[矿业工程—选矿]