羟肟酸钠浮选赤铁矿的研究  

STUDY OF SODIUM HYDROXAMATE AS COLLECTOR ON HEMATITE FLOTATION

作　　者：郑贵山[1] 刘炯天[1,2] 陈天修[2] 

机构地区：[1]东北大学,沈阳110004 [2]中国矿业大学,江苏徐州221008

出　　处：《矿冶》2009年第4期9-12,共4页Mining And Metallurgy

基　　金：十一五国家科技支撑计划项目(2006BAB02A04)

摘　　要：本文研究了羟肟酸钠作捕收剂赤铁矿的可浮性。考察了pH、钙离子、氟化物、六偏磷酸钠和硅酸钠对赤铁矿浮选的影响。研究结果表明：当羟肟酸钠作捕收剂时，赤铁矿浮选的最佳pH为4～6，钙离子对浮选是有害的；氟化钠、硅氟酸钠对石英起到抑制作用；在酸性条件下，单独使用硅酸钠对石英的抑制效果不佳，硅酸钠和硫化钠的组合使用可以作为石英的有效抑制剂。The research of hematite flotation using sodium hydroxamate as collector is studied in this paper, and the following effect factors such as pH,Ca2＋ , NaF,Na2SiF6, （NaPO3）6 and Na2SiOa are investigated. The resuits show that in the process of hematite flotation using sodium hydroxamate as anionic collector, the optimum pH value fails between 4 -6 , Ca^2＋ is harmful to the hematite flotation; the concentration increase of NaF and NaESiF6 can depress the quartz flotation, the joint use of Na2SiO3 and Na2S has better depression effects than the only use of Na2SiO3 on of quartz flotation under acidic conditions.

关 键 词：羟肟酸钠 浮选 赤铁矿 抑制剂 活化剂 

分 类 号：TD951.1[矿业工程—选矿]