油酸钠体系中微细粒赤铁矿的浮选行为  

Flotation Behavior of Ultrafine Hematite in Sodium Oleate Flotation System

作　　者：陶洪[1,2] 张芹[1,2] 王飞[1,2] 左倩[1,2] 

机构地区：[1]武汉科技大学资源与环境工程学院 [2]冶金矿产资源高效利用与造块湖北省重点实验室

出　　处：《金属矿山》2012年第6期61-63,共3页Metal Mine

基　　金：国家自然科学基金面上项目(编号:50974099)

摘　　要：通过单矿物浮选试验,研究了油酸钠体系中微细粒赤铁矿的浮选行为,并考察了六偏磷酸钠、硅酸钠、焦磷酸钠、淀粉、腐植酸钠这5种抑制剂对微细粒赤铁矿可浮性的影响。结果表明:在油酸钠浓度为4×10-4mol/L、pH=10时,微细粒赤铁矿的浮选效果最佳。5种抑制剂对微细粒赤铁矿均表现出明显的抑制作用,它们抑制能力的强弱排序为淀粉>腐植酸钠>焦磷酸钠>六偏磷酸钠>硅酸钠。Flotation behavior of ultrafine hematite and the effect of five types of depressors （ sodium hexametaphosphate, sodium silicate, sodium pyro-phosphate, starch, sodium humate）on ultrafine hematite recovery in NaO1 flotation system were researched. The resuhs show that ultrafine hematite reaches to good floatability when the concentration of sodium oleate is 4 ×10 -4 mol/L and pH value is 10. The five types of depressors all have obvious depression on uhrafine hematite flotation, organic depressors have a better depression effect than inorganic depressors, and the depression effects of the five depressors are in the order of starch 〉 sodium humate 〉 sodium pyro-phosphate 〉 sodium hexametaphosphate 〉 sodium silicate.

关 键 词：微细粒赤铁矿 浮选 油酸钠 PH 抑制剂 

分 类 号：TD951.1[矿业工程—选矿]