摘要
针对某高泥高硅赤铁矿进行了预先脱泥—高梯度强磁—磁选精矿再磨—反浮选联合工艺研究。试验结果表明,原矿经螺旋溜槽脱泥,SLon立环高梯度强磁后进行再磨再选,可有效消除黏土等泥质矿物对选矿的影响;在原矿含Fe 12.43%的条件下,采用阳离子捕收剂反浮选脱硅,获得了含Fe51.28%,回收率为38.74%的铁精矿。
A combined process flowsheet including pre-desliming,high gradient magnetic—magnetic separation,concentrate regrinding and reverse flotation was adopted to handle a high-mudded and high-silicon hematite ore. The results indicate that the effects of clay and other shale minerals in the run-of-mine ore can be effectively eliminated by spiral chute desliming and Slon vertical ring high-gradient magnetic seperation after regrinding. Using cation collector for desilication in reverse flotation of a run-of-mine ore with 12. 43% of Fe,an iron concentrate with Fe content of 51. 28% and recovery rate of 38. 74% was obtained.
出处
《矿冶》
CAS
2017年第5期11-16,共6页
Mining And Metallurgy
关键词
赤铁矿
脱泥
反浮选
捕收剂
hematite ore
desliming
reverse flotation
collector
