油酸钠和十二烷基磺酸钠浮选氟碳铈矿的机理研究  

Mechanism study of sodium oleic and sodium dodecyl sulphonate on bastnasite flotation

作　　者：何晓娟[1] 饶金山[1,2] 邱显扬[1] 罗传胜[1] 张军[1] 陈志强[1] 

机构地区：[1]广东省工业技术研究院(广州有色金属研究院),广东广州510650 [2]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《材料研究与应用》2013年第1期42-45,共4页Materials Research and Application

基　　金：国家重点基础研究发展计划课题资助项目(2012CB724201)

摘　　要：采用单矿物试验的方法,分别以油酸钠和十二烷基磺酸钠为捕收剂,研究了氟碳铈矿的浮选行为,并通过红外光谱研究了油酸钠和十二烷基磺酸钠对氟碳铈矿的捕收作用机理.研究结果表明,当矿浆pH=8.5、油酸钠用量为15.2mg/L时,氟碳铈矿浮选回收率为99.77%;当矿浆pH=7,十二烷基磺酸钠用量为27.2mg/L,2号油用量为14mg/L时,氟碳铈矿浮选回收率为90.00%;红外光谱分析结果表明,油酸钠在氟碳铈矿表面可能发生了化学吸附,十二烷基磺酸钠则为物理吸附.Flotation behaviors of bastnaesite in the collector systems of sodium oleic and sodium dodecyl sulphonate were studied through pure mineral tests. The collecting mechanisms of sodium oleie and sodium dodecyl sulphonate on basmaesite were studied by FT-IR. As the flotation behaviors results revealed, the optimal flotation recovery of bastnaesite was 99.77% when the pulp pH=8.5 and sodium oleic dosage was 15.2mg/L. While the optimal flotation recovery of bastnaesite was 90.00% if the pulp pH=7 and the dosage of sodium dodecyl sulphonate was 27.2mg/L and pine oil dosage was 14 mg/L. And the FT-IR analysis results revealed chemosorption may occur between sodium oleic and bastnaesite,while sodium dodeeyl sul- phonate physisorption.

关 键 词：稀土矿 氟碳铈矿 油酸钠 十二烷基磺酸钠 傅里叶红外 

分 类 号：TD923[矿业工程—选矿]