国外某赤铁矿矿泥中铁的回收试验研究  

Study on Recovery of Iron Contained in a Foreign Hematite Slime

作　　者：方萍[1] 张瑞洋[1] 高淑玲[1] 刘文刚[1] 卢涛[1] 

机构地区：[1]东北大学,辽宁沈阳110004

出　　处：《有色矿冶》2012年第6期22-25,共4页Non-Ferrous Mining and Metallurgy

摘　　要：针对国外某赤铁矿矿泥含铁56.65%、-0.023 mm粒级占76.56%的特性,先后采用单一磁选、磁选-反浮选以及强化分散的磁选工艺对其进行了分选试验。结果表明,采用一粗-一精-一扫-两次再选的磁选流程,并在粗选和扫选分别加入分散剂3 kg/t和1 kg/t,可以获得铁精矿品位和回收率分别为65.05%、68.58%的良好分选指标。本研究对处理此类微细粒赤铁矿矿石具有良好的借鉴意义。In view of the characteristics of Fe grade of 56.65% and - 0. 023 mm size reaching the yield of 76.65% for a foreign type of hematite slime, the beneficiation tests were carried out successively by the process of simplex magnetic separation, magnetic separation -reverse flotation and dispersion -strengthened magnetic separa tion. The results showed that a satisfying concentrate with iron grade and recovery of 65.05% and 68.58% respec tively was obtained through the magnetic separation flowsheet of one stage roughing - one stage cleaning and one stage scavenging two stage recleaning, adding dispersant 3 kg/t in the roughing and 1 kg/t in the scavenging. This research has a certain significance for this type of ultrafine hematite ore.

关 键 词：矿泥 赤铁矿 磁选 反浮选 分散剂 

分 类 号：TD92[矿业工程—选矿]