氢化松香酯基阳离子捕收剂M-N的合成及浮选性能  

Synthesis and flotation performance of a hydrogenated rosin ester-based cationic collector M-N

作　　者：郭婷 梅光军[1] 李诚 于明明[1] 陈晓东[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,武汉430070

出　　处：《工程科学学报》2017年第10期1512-1517,共6页Chinese Journal of Engineering

基　　金：国家自然科学基金资助项目(51274158);国家科技支撑计划资助项目(2015BAB03B01)

摘　　要：以石英纯矿物浮选回收率和季铵盐活性物含量为指标,进行了摩尔比、温度、时间等合成条件的优化.以酒钢焙烧磁铁矿实际矿石在捕收剂M-N作用下进行脱硅反浮选,所得铁精矿品位56.54%、回收率77.33%.在5~30℃条件下,浮选精矿指标稳定,耐低温性优良.捕收性能优于传统药剂十二胺和醚胺.Zeta电位和红外光谱分析表明,M-N在石英表面发生静电吸附作用和氢键作用,因此加强了浮选分离的效果.This paper optimized the synthesis conditions such as molar ratio,temperature and time by examining quartz recovery and the active content of quaternary ammonium. The reverse-flotation results using roast-magnetite separation of Jiugang iron show that a concentrate with a grade of 56. 54% and a recovery rate of 77. 33% are obtained using M-N as collector. At 5-30 ℃,the reverse flotation result is stable,as well as the low-temperature resistance is excellent. Selectivity of M-N is superior to the traditional collector dodecylamine and ether amines. The result of Zeta potential and infrared spectroscopy reveals that the successful separation effect of M-N is due to electrostatic adsorption and hydrogen bonding on quartz.

关 键 词：氢化松香 阳离子捕收剂 反浮选 ZETA电位 石英纯矿物浮选 

分 类 号：TD923.13[矿业工程—选矿]