Fe^(3+)影响黄铜矿抑制行为的研究  

Study on the effect of Fe^(3+)on the inhibition behavior of chalcopyrite

作　　者：马艳红 朱阳戈 吴桂叶 刘崇峻 刘慧南 卢通 MA Yanhong;ZHU Yangge;WU Guiye;LIU Chongjun;LIU Huinan;LU Tong(BGRIMM Technology Group,Beijing 100160,China;State Key Laboratory of Mineral Processing Science and Technology,Beijing 102628,China)

机构地区：[1]矿冶科技集团有限公司,北京100160 [2]矿物加工科学与技术国家重点实验室,北京102628

出　　处：《中国矿业》2023年第S01期423-428,共6页China Mining Magazine

基　　金：矿冶科技集团有限公司青年科技创新基金项目“金属离子与巯基抑制剂溶液组装规律与抑制机理研究”资助(编号:04-2206);“十四五”国家重点研发计划项目“特殊环境下硬岩型锂矿开发与高质化利用关键技术集成示范”资助(编号:2021YFC2903200)。

摘　　要：为探究Fe^(3+)对黄铜矿抑制行为的影响,通过纯矿物的浮选试验、Zata电位测试、氧化还原电位(ORP)测试、Fe^(3+)溶液化学分析、以及X射线光电子能谱分析(XPS),研究了Fe^(3+)对黄铜矿表面性质、可浮性的影响及其作用机制。研究结果表明,以巯基乙酸钠(STG)做抑制剂,pH值在4~6之间,Fe^(3+)的加入明显降低了黄铜矿的回收率。经Fe^(3+)作用后黄铜矿Zata电位显著提高,而氧化还原电位未发生明显变化。Fe^(3+)在溶液中主要以羟基络合铁离子、氢氧化铁沉淀及少量铁离子形态存在,Fe^(3+)水解组分衍生物Fe 2O 3在黄铜矿表面发生物理吸附和化学吸附,是造成黄铜矿浮选回收率下降的主要原因。The impact of Fe^(3+)on chalcopyrite s surface properties and floatability is systematically studied.Many methods are hired,such as the flotation test,Zata potential test,ORP potential test,chemical analysis of Fe^(3+)solution,and X-ray photoelectron spectroscopy(XPS).The results show that with STG as an inhibitor,the recovery rate of chalcopyrite is reduced significantly by adding Fe^(3+)when the pH is in the range of 4-6.The Zeta potential of chalcopyrite increased significantly after Fe^(3+)treatment,but the ORP potential did not change significantly.Fe^(3+)in solution mainly exists in the form of hydroxy-complex iron ions,iron hydroxide precipitation,and a small number of iron ions.The physical and chemical adsorption of Fe^(3+)hydrolyzed derivatives on the chalcopyrite surface is the main reason for the decline of chalcopyrite flotation recovery.

关 键 词：Fe^(3+) 黄铜矿 巯基乙酸钠 浮选 XPS分析 

分 类 号：TD923[矿业工程—选矿]