【摘要】 在前期实验室试验的基础上,在现场进行了东鞍山铁矿高碳酸铁矿石磁选混合精矿分步浮选的工业试验,获得了铁品位为64.80%、铁作业回收率为72.89%的浮选精矿,验证了分步浮选工艺在工业上应用的可行性。工业试验期间对粗细分选—重选—磁选—分步浮选全流程进行了流程考察,结果表明,采用分步浮选技术可使东鞍山铁矿过去无法处理的高碳酸铁矿石得到利用,所得综合铁精矿的铁品位为63.02%、铁回收率为63.77%。更多还原

【Abstract】 In this paper,the industrial test on the step-flotation of ire ore containing high carbonate iron in Dong’anshan was studied on the basis of the early lab researches.The flotation concentrate with Fe grade of 64.80% and the Fe recovery 72.89% has been gained in the industrial test,which confirms the feasibility of step-flotation process in industrial application.During the tests,the entire process of rough concentration-gravity separation-magnetic separation-step flotation was investigated.The results indicated that the iron ore containing high ferric carbonate in Dong’anshan that can not be used in the past now was exploited by the step-flotation,obtaining comprehensive iron concentrate with Fe grade 63.02%,and Fe recovery of 63.77%.更多还原