摘要
对国外某高铝赤褐铁矿进行了选矿试验研究。采用还原磁化焙烧-磁选工艺,可获得精矿铁品位58.26%、铁回收率80.53%的试验指标;采用钠化还原磁化焙烧-磁选工艺,可获得精矿铁品位63.48%、回收率95.45%的试验指标。探索了在富集铁的同时富集镍、降低铁精矿中Al_2O_3含量的可行性。
Experimental study was carried out on beneficiation of a high-aluminum hematite-limonite ore from abroad.Test with processes of reduction magnetic roasting-magnetic separation yielded a concentrate approaching 58.26% Fe grade at 80.53% recovery,while test adopting reduction magnetic roasting by adding sodium salts followed by magnetic separation resulted in 95.45% recovery to concentrate grading 63.48% Fe. Meanwhile, the feasibility for nickel enrichment and Al2O3 reduction in iron concentrates whilst enriching iron was investigated.
出处
《矿冶工程》
CSCD
北大核心
2017年第6期57-59,共3页
Mining and Metallurgical Engineering
关键词
褐铁矿
赤铁矿
高铝铁矿
还原焙烧
钠化焙烧
磁选
limonite
hematite
high-aluminum iron ore
reduction roasting
sodium salt roasting
magnetic separation
