烷基多胺醚GE-609浮选含铁硅酸盐碧玉的研究  

Performance of Alkyl Polyamines Ether GE-609 in Ferruginous Jasper Flotation

作　　者：葛英勇[1] 罗衡[1] 刘恒发[1] 余永富[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070

出　　处：《矿冶工程》2013年第1期26-29,33,共5页Mining and Metallurgical Engineering

基　　金：国家自然科学基金项目(51074211)

摘　　要：以烷基多胺醚GE-609作为反浮选捕收剂,对酒钢铁矿碧玉进行了浮选试验和机理研究。研究表明:GE-609对碧玉有较好的选择分离效果,闭路试验获得了铁精矿产率82.53%、品位62.15%和回收率94.13%的良好指标。测试和溶液化学分析结果表明,在4.6<pH<9时,溶液中烷基多胺醚以二价阳离子RNH42+为主;在中性pH值条件下,碧玉表面都荷负电,容易与RNH42+发生电性吸附,而磁铁矿表面几乎不荷电,从而实现碧玉和铁矿的分离。Using alkyl polyamines ether GE-609 as the reverse flotation collector, flotation tests and mechanism study were conducted for recovering jasper of JiuSteel Iron Mine. The results show that, when used for jasper flotation, GE-609 shows good selectivity, and an iron concentrate with the yield of 82.53%, TFe grade of 62.15% and iron recovery of 94.13% can be obtained from the closed-circuit flotation test. The solution chemistry study shows that the main component of alkyl polyamines ether in a pulp at a pH of 4.6 - 9 is divalent cation RNH4^2＋. In the neutral solution, there is a strong tendency of electrostatic adsorption between RNH4^2＋ and negatively charged adsorption of RNH4^2＋ on the almost non-charged surface of magnetite is limited. Flotation separation minerals can therewith be realized jasper, while the of jasper and iron

关 键 词：浮选 GE-609 碧玉 提铁降硅 ZETA电位 溶液化学 

分 类 号：TD923[矿业工程—选矿]