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›› 2009, Vol. 9 ›› Issue (3): 498-502.

• 反应与分离 • 上一篇    下一篇

丁黄药用作高硫铝土矿浮选除硫的捕收剂

王晓民 张廷安 吕国志 鲍丽 蒋孝丽   

  1. 东北大学材料与冶金学院 东北大学材料与冶金学院 东北大学材料与冶金学院 东北大学材料与冶金学院 东北大学 材料与冶金学院
  • 收稿日期:2008-10-22 修回日期:2009-01-12 出版日期:2009-06-20 发布日期:2009-06-20
  • 通讯作者: 张廷安

Flotation Desulfurization of High-sulfui Bauxite with Butyl Xanthate as Collector

WANG Xiao-min ZHANG Ting-an LU Guo-zhi BAO Li JIANG Xiao-li   

  1. School of Materials and Metallurgy, Northeastern University School of Materials & Metallurgy，Northeastern University Shenyang School of Materials and Metallurgy, Northeastern University School of Materials & Metallurgy，Northeastern University Shenyang School of Materials & Metallurgy，Northeastern University Shenyang
  • Received:2008-10-22 Revised:2009-01-12 Online:2009-06-20 Published:2009-06-20
  • Contact: ZHANG Ting-an

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摘要： 采用浮选方法对我国含硫一水硬铝石型铝土矿进行脱硫，采用单因素实验研究了高硫铝土矿在浮选剂丁基钠黄药作用下反浮选除硫的工艺条件，考察了浮选剂用量、浮选时间、浮选矿浆浓度(液固质量比)、pH值及矿石粒度对浮选的影响. 结果表明，反浮选除硫的合适工艺条件为，矿浆pH 10、浮选剂用量0.16 kg/t、起泡剂20 g/t、浮选刮泡时间15 min、液固质量比10、矿石粒度0.15 mm. 在此工艺条件下，铝土矿中硫含量由2.08%降低到0.41%，符合我国氧化铝工业对矿石中硫含量的要求，Al2O3回收率达90.83%. 浮选过程基本符合一级动力学反应方程.

关键词: 铝土矿, 浮选, 脱硫, 动力学, 丁黄药

Abstract: The desulfurization of high-sulfur diasporic bauxite from China with flotation process and butyl xanthate as collector was studied, and the effects of flotation time, pulp density, pH value and particle size of ores on the desulfurization rate were examined. The results indicated that the sulfur in bauxite was successfully decreased through flotation. The sulfur content was lowed to 0.41% under the conditions of pH value at 10, the dose of flotation agent butyl xanthate 0.16 kg/t, frother 20 g/t, flotation time 15 min, mass ratio of liquid to solid 10, the particle size of ores 0.15 mm, and the reclamation of Al2O3 was 90.83%. The kinetics of flotation desulfurization was also studied. The flotation obeyed the first order kinetic equation.

Key words: bauxite, floatation, desulfurization, kinetics, butyl xanthate

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