小分子有机抑制剂对黄铜矿和方铅矿浮选行为的影响  

Effects of Small Molecule Organic Depressants on the Flotation Behavior of Chalcopyrite and Galena

作　　者：朴正杰[1] 魏德洲[1] 刘智林[1,2] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819 [2]江西理工大学工程研究院,江西赣州341000

出　　处：《东北大学学报（自然科学版）》2013年第6期884-888,共5页Journal of Northeastern University(Natural Science)

基　　金：国家科技支撑计划项目(2008BAB34B01)

摘　　要：研究了以乙硫氮为捕收剂的浮选体系中,新型抑制剂O,O-二(2,3-二羟基丙基)二硫代磷酸(DHDTP)对黄铜矿和方铅矿可浮性的影响,并通过动电位和红外光谱测试分析,探讨了DHDTP与矿物之间的相互作用机理.浮选试验结果表明:在pH=4～10的范围内,DHDTP对黄铜矿的抑制作用很弱,而对方铅矿却有很好的抑制效果;随着DHDTP用量的增加,方铅矿的回收率迅速下降,而黄铜矿的回收率只有小幅度的降低,这是因为方铅矿与DHDTP之间的吸附能力明显强于黄铜矿.The effects of the new depressant O,O-bis(2,3-dihydroxypropyl) dithiophosphate(DHDTP) on the flotability of the chalcopyrite and galena in the floatation system with diethyldithiocarbamate as a collector were investigated.The interaction mechanism between DHDTP and the minerals was also explored through zeta potential and infrared spectrum analysis.Flotation test results showed that in the range of pH=4~10,the DHDTP had slightly inhabition effect on the chalcopyrite while strong inhibition effect on the galena.With the increase of DHDTP content,the recovery rate of the galena decreased rapidly while that of the chalcopyrite decreased slightly,which was due to the adsorption capacity of DHDTP on the galena was much stronger than that on the chalcopyrite.

关 键 词：O O-二(2 3-二羟基丙基)二硫代磷酸 浮选行为 黄铜矿 方铅矿 抑制剂 

分 类 号：TD923.14[矿业工程—选矿]