有机分散剂对含碳酸盐铁矿石浮选的影响  

INFLUENCE OF ORGANIC DISPERSANTS ON FLOTATION OF AN IRON ORE CONTAINING CARBONATE

作　　者：王乃玲[1,2] 卢冀伟[2] 印万忠[2] 杨光[3] 季安坤 殷琳琳[2] 

机构地区：[1]西安天宙矿业科技开发有限责任公司,西安710061 [2]东北大学,沈阳110819 [3]鞍钢集团矿业公司东鞍山烧结厂,辽宁鞍山114041

出　　处：《矿冶》2014年第2期23-27,共5页Mining And Metallurgy

基　　金：中央高校基本科研业务费项目(N110501002)

摘　　要：目的在于确定能够有效分散含碳酸盐铁矿石的分散剂。通过有机分散剂种类及用量条件试验,确定了最佳分散剂为NMS-3,其最佳用量为200 g/t。制定了适合选别东鞍山含碳酸盐混合磁选精矿的一次粗选、两次精选、一次扫选的分散浮选工艺流程。闭路试验获得了品位66.37%、回收率75.00%的铁精矿。该浮选指标良好,且工艺流程简单。论文运用DLVO理论对NMS-3分散机理进行了初步探讨,为含碳酸盐铁矿石的有效利用提供理论基础。This paper aimed to determine the optimum dispersant which can disperse iron ore containing carbonate.NMS-3 with 200 g/t was ultimately determined as the preferred dispersant by type and dosage condition tests of organic dispersants.One roughing-two cleaners-one scavenger dispersion flotation process for Donganshan mixed magnetic concentrate containing carbonte was proposed.The grade of iron concentrate obtained from a locked-cycle circuit test was 66.37％,and the iron recovery was 75.00％.This separation indexes was ideal,the dispersion flotation processes was simple as well.In this paper,DLVO theory was used to analyze the dispersion mechanism of the dispersant,which provide a theoretical basis for the effective utilize of the iron ore containing carbonate.

关 键 词：有机分散剂 分散浮选 含碳酸盐铁矿石 

分 类 号：TD951[矿业工程—选矿]