常见金属阳离子对黑云母浮选行为影响研究  

Effect of Metallic Cations on Floatability Performance of Pure Biotite

作　　者：沙惠雨 刘长淼[1,2] 方霖[1,2] 冯安生[1,2] 

机构地区：[1]中国地质科学院郑州矿产综合利用研究所,河南郑州450006 [2]国土资源部多金属矿评价与综合利用重点实验室,河南郑州450006

出　　处：《金属矿山》2017年第1期94-98,共5页Metal Mine

基　　金：国土资源部公益项目(编号:201511062)

摘　　要：研究了在油酸钠捕收剂体系中金属阳离子Ca^(2+)、Mg^(2+)、Cu^(2+)、Fe^(3+)、Pb^(2+)、Al^(3+)对黑云母纯矿物可浮性的影响,并通过溶液化学计算探讨其作用机理。试验结果表明:1在油酸钠捕收体系中,6种金属阳离子在碱性条件下对黑云母都有活化作用,其中Cu^(2+)、Fe~(^(3+))、Al^(3+)的活化作用最强,Pb^(2+)次之,Ca^(2+)、Mg^(2+)的活化作用最弱.2Ca^(2+)对黑云母浮选起活化作用的主要组分是羟基络合物;Mg^(2+)、Cu^(2+)、Fe^(3+)和Al^(3+)对黑云母起活化作用的优势组分主要是氢氧化物沉淀;Pb^(2+)的羟基络合物和氢氧化物沉淀都是活化黑云母的优势组分。The influences of metallic cations such as Ca^2＋, Mg^2＋ , Cu^2＋ , Fe^3＋ , Pb^2＋, Al^3＋ on the floatability of the biotite in the collector system of sodium oleate were investigated and the mechanism was analyzed by the chemical calculation. The re- sults showed that six kinds of metal cations can activate the biotite under alkaline conditions in the collector system of sodium oleate, and the activation of Cu^2＋ , Fe^3＋ and Al^3＋ on the biotite are the strongest, next is Pb^2＋, and Ca^2＋ and Mg^2＋ is the weakest. The dominant component by which Ca^2＋ can activate the flotation of biotite is hydroxyl complexes ; The dominant component by which Mg^2＋ and Cu^2＋, Fe^3＋ and Al^3＋ activate biotite is hydroxide precipitation; Both of hydroxyl complexes and hydroxide precipitation of Pb^2＋ are the superiority to activate the biotite.

关 键 词：黑云母 纯矿物 金属离子 溶液化学计算 

分 类 号：TD923[矿业工程—选矿]