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.
出处
《金属矿山》
CAS
北大核心
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)
关键词
黑云母
纯矿物
金属离子
溶液化学计算
Biotite, Single mineral, Metal ions, Solution chemistry calculation
