某地赤铁矿提铁降硅选矿试验研究  

Experimental Study on Iron Increase and Silicon Reduction of Some Hematite

作　　者：赵荣艳 范娜 

机构地区：[1]西安天宙矿业科技开发有限责任公司,陕西西安710061

出　　处：《矿冶工程》2012年第4期62-65,共4页Mining and Metallurgical Engineering

摘　　要：针对某地赤铁矿硅含量高的特点,进行了提铁降硅试验研究。采用抑铁浮脉石的单一反浮选工艺流程,使用调整剂氢氧化钠、铁抑制剂淀粉、脉石活化剂HJ、脉石捕收剂TZ33#组合药剂,获得的闭路试验指标为:铁精矿TFe品位65.67%,铁精矿中SiO2含量5.45%,铁回收率88.67%。对铁精矿浓缩脱泥可使铁精矿TFe品位提高2%左右、SiO2含量降低1%左右。Systematic study on iron increase and silicon reduction was conducted for a hematite with a high silicon. A single reverse flotation process was adoped to depress iron minerals while float gangue, with sodium hydroxide as regulator, starch as iron depressant, HJ as gangue activator and TZ33# as gangue collector. An iron concentrate with a TFe grade of 65.67% , an iron recovery of 88.67% and a silicon content of 5.45% was obtained. As for the iron concentrate, the TFe grade can be increased by 2% and the SiO2 content can be reduced by 1% with a further thickening and desliming

关 键 词：赤铁矿 提铁降硅 反浮选 

分 类 号：TD923[矿业工程—选矿]