丁基铵黑药体系下铁闪锌矿的浮选行为及其表面吸附机理  

FLOTATION AND ADSORPTION MECHANISM OF MARMATITE ON AMMONIUM DIBUTYL DITHIOPHOSPHATE

作　　者：杨玮[1] 

机构地区：[1]中南大学资源加工与生物工程学院,长沙410083

出　　处：《有色金属（选矿部分）》2010年第4期39-42,共4页Nonferrous Metals（Mineral Processing Section）

基　　金：国家"十一五"科技支撑计划重点项目(2006BAB02B04)

摘　　要：研究在丁基铵黑药作用下,矿浆pH对硫酸铜未活化和活化铁闪锌矿的浮选试验,以及铁闪锌矿表面ζ电位及红外光谱测定,探讨了丁基铵黑药体系下,铁闪锌矿的浮选行为及其表面吸附机理。结果表明,铁闪锌矿在弱酸性及中性条件下可浮性较好,Cu2+对其有较强的活化效果。丁基铵黑药在铁闪锌矿表面为化学吸附,其表面生成双黑药,加入Cu2+后在铁闪锌矿表面生成正二丁基二硫代磷酸铜,使铁闪锌矿可浮性得以大大改善。The flotation and adsorption mechanism of marmatite are investigated by pH values on recovery of marmatite in presence of ammonium dibutyl dithiophosphate with and without Cu^2＋ iron tests and the measurement of ζpotential and FTIR. The results show that in weak acid and neutral solution, the floatability of marmatite is best, and to a certain extent, Cu^2＋ ion can affect the floatability of mannatite. The ζpotential and FTIR spectroscopy analysis show that the surface adsorption is chemisorption and its products may be dual-aerofloat. After Cu^2＋ added, the surface of marmatite is dibutyl copper dithiophosphate, so that marmatite floatability can be greatly improved.

关 键 词：丁基铵黑药 铁闪锌矿 浮选 吸附机理 

分 类 号：TD923.1[矿业工程—选矿]