次氯酸钠强化赤铜矿硫化浮选的影响及机理  

Effect and Mechanism of Sodium Hypochlorite Strengthening Sulfuration Flotation of Cuprite

作　　者：马英强[1,2,3] 于翔州 罗进 宋振国 印万忠 饶峰[1,3] MA Yingqiang;YU Xiangzhou;LUO Jin;SONG Zhenguo;YIN Wanzhong;RAO Feng(Zijin School of Geology and Mining,Fuzhou University,Fuzhou 350108,China;State Key Laboratory of Mineral Processing Science and Techonlogy,Beijing 102628,China;Fujian Key Laboratory of Green Extraction and High-value Utilization of New Energy Metals,Fuzhou 350108,China)

机构地区：[1]福州大学紫金地质与矿业学院,福建福州350108 [2]矿物加工科学与技术国家重点实验室,北京102628 [3]福建省新能源金属绿色提取与高值利用重点实验室,福建福州350108

出　　处：《金属矿山》2024年第2期157-162,共6页Metal Mine

基　　金：国家自然科学基金项目(编号:51804081,52374259);矿物加工科学与技术国家重点实验室开放基金项目(编号:BGRIMM-KJSKL-2023-11)。

摘　　要：表面适度氧化可以提高赤铜矿硫化浮选的效果。通过纯矿物浮选试验,探究了次氯酸钠对赤铜矿硫化浮选的影响,并采用X射线光电子能谱分析、矿物表面Zeta电位测定等方法,探讨了次氯酸钠强化赤铜矿浮选行为的机理。结果表明:与直接硫化浮选相比,次氯酸钠能使赤铜矿的硫化浮选回收率增加8.95个百分点;次氯酸钠能够促进赤铜矿表面的Cu(Ⅰ)组分转变为Cu(Ⅱ)组分,可以增强铜组分与硫化剂的反应活性,强化赤铜矿的硫化效果,对赤铜矿的硫化浮选具有促进作用。Moderate surface oxidation can improve the effect of sulfuration flotation of cuprite.The effect of sodium hypo-chlorite on sulfuration flotation of cuprite was investigated by single mineral flotation test,and the mechanism of sodium hypochlo-rite enhanced sulfuration flotation of cuprite was discussed by means of X-ray photoelectron spectroscopy and mineral surface Zeta potential measurement.The results show that compared with direct sulfuration flotation,sodium hypochlorite can increase the sul-furation flotation recovery rate of copper by 8.95 percentage points,and sodium hypochlorite can promote the oxidation of Cu(Ⅰ)component on the surface of copper to Cu(Ⅱ)component,which can enhance the reactivity of copper component and sulfuration agent,and strengthen the sulfuration effect of copper.It can promote the sulfide flotation of cuprite.

关 键 词：赤铜矿 硫化浮选 氧化剂 强化硫化 表面吸附 

分 类 号：TD923[矿业工程—选矿]