CMS抑制剂对鄂西高磷鲕状赤铁矿反浮选效果的研究  

Effect of Inhibitor CMS on Reverse Flotation of High Phosphorous Oolitic Hematite from Western Hubei

作　　者：董怡斌[1] 强敏[1] 段正义[1] 杨倩[1] 廖小君[1] 

机构地区：[1]武汉科技大学化学工程与技术学院,湖北武汉430081

出　　处：《矿冶工程》2011年第3期44-47,共4页Mining and Metallurgical Engineering

基　　金：国家"十一五"重点支撑项目(2007BAB15B01)

摘　　要：对鄂西高磷鲕状赤铁矿进行了反浮选研究。将改性羧甲基阴离子淀粉（CMS）作为抑制剂代替传统的玉米淀粉,并配合自行研制的QD-01捕收剂,采用细磨-湿式强磁-反浮选小型试验对CMS的抑制效果进行了验证。试验结果表明：磨矿粒度为-0.074 mm粒级占90%时,胶磷矿与赤铁矿部分解离,但依旧有粘连;磁选后铁矿平均铁品位47.87%,P含量0.78%;在浮选温度为20~25℃时,采用CMS作抑制剂,能获得平均铁精矿大于53.22%、磷含量小于0.47%、浮选作业回收率大于58%的铁精矿。Reverse flotation was adopted to treat a high phosphorus oolitic hematite ore from Western Hubei.With a modified carboxymethyl anion starch（CMS） as the depressant instead of traditional corn starch,and using a self-developed collector,QD-01,a bench test following the processes of fine grinding-wet high intensity magnetic separation-reverse flotation was carried out to evaluate the depression effect of CMS.The results show that,with a grinding fineness of-0.074 mm 90%,kollophan and hematite minerals can be partly dissociated,but there exists still adhesion.After magnetic separation,the average iron grade can be increased to 47.87%,and P content can be reduced to 0.78%.Using CMS as depressant,and at a pulp temperature of 20～25 ℃,iron concentrate with an average iron grade of more than 53.22%,phosphorus content of less than 0.47% and flotation recovery of over 58% can be produced.

关 键 词：高磷鲕状赤铁矿 胶磷矿 抑制剂 反浮选 

分 类 号：TD923[矿业工程—选矿]