某印度长石除铁增白试验研究

摘要

印度某长石两不同采样点原矿含全铁量分别为0.224％、0.1％,其主要矿物为钾长石,原矿经一段中磁—两段强磁的流程进行除铁试验,得到全铁含量分别为0.039％、0.031％的长石矿,全铁去除率分别为82.59％、69.00％,其白度分别由34.92增加至68.52、46.89增加至69.38,除铁效果良好,达到了除铁增白的目的.%The total iron grades ofa fledspar ore at different mining site in India were respectively 0.224％ and 0.1％,and the main mineral is potash feldspar.The process of one-stage medium-intensity magnetic separation and two-stage high intensity magnetic separation was carried out for iron removal.The results showed that the process can obtain the total iron grades were respectively 0.039％ and 0.031％,also the iron removing ratio were 82.59％ and 69.00％ respectively.Whiteness of ore increased separately fiom 34.92 and 46.89 to 68.52 and 69.38.The process achieved the purpose of iron removal and whitening effectively.