摘要
本试验以TFe品位66.72%、SiO2含量4.56%的河北某铁矿铁精矿为原料,进行了制备超级铁精矿试验研究。试验结果表明,磨矿-磁选-磁浮选工艺的分选指标较优,在磨矿细度为-0.074mm含量占93.48%,弱磁选磁场强度为80kA/m,磁浮选在温度为室温25℃、磁场强度25kA/m、pH值为7、HY-9捕收剂用量80g/t、矿浆浓度为30%的条件下,获得了TFe品位72.33%,回收率79.81%,酸不溶物含量0.15%的超级铁精矿。
The preparation of super iron concentrate was investigated by using the iron concentration of Hebei province iron ore with TFe content of 66.72% and SiO2 content of 4.56% as raw materials. The results showed that the separation index of the grinding-magnetic separation-magnetic flotation process had better sorting index in which the grinding fineness was-0.074 mm, the content was 93.48%, the magnetic field strength was 80 kA/m, and the magnetic flotation with the dosage of HY-9 collector was 80 g/t, the magnetic field strength was 25 kA/m at the condition of pH=7, pulp concentration was 30%, and the room temperature was 25℃, obtained the TFe grade of super iron concentrate of 72.33%, a recovery rate of 79.81% and acid insoluble content of 0.15%.
作者
李凤久
尚新月
李国峰
单志伟
Li Fengjiu;Shang Xinyue;Li Guofeng;Shan Zhiwei(College of Mining Engineering,North China University of Science and Technology,Tangshan,Hebei,China;H.ebei Province mining industry develops with safe technology priority laboratory,Tangshan,Hebei,China))
出处
《矿产综合利用》
CAS
北大核心
2019年第6期33-36,27,共5页
Multipurpose Utilization of Mineral Resources
基金
河北省自然科学基金项目(No.E2018209096)
关键词
磁浮选
反浮选
酸不溶物
超级铁精矿
Magnetic-flotation
Reverse flotation
Insolubles in acid
Super iron concentrate
