中国矿业
中國礦業
중국광업
CHINA MINING MAGAZINE
2013年
11期
104-106
,共3页
高硫磁铁矿%降硫%反浮选
高硫磁鐵礦%降硫%反浮選
고류자철광%강류%반부선
high sulfur iron ore%sulfur reduction%reverse flotation
进行了伊朗某含硫磁铁矿石的工艺矿物学研究、选别工艺研究。结果表明，该矿石含铁较高，铁矿物类型复杂，以磁铁矿为主，含少量赤、褐铁矿，有害杂质硫含量较高。矿石中存在镁和铁的类质同象混杂，其磁铁矿纯矿物品位低于68％，用机械选矿技术精矿铁品位不能提到68％以上。试验采用粗磨后磁选-反浮选或两段细磨后磁选工艺，均可得到铁品位67％以上、硫含量降至0．1％以下的合格铁精矿。
進行瞭伊朗某含硫磁鐵礦石的工藝礦物學研究、選彆工藝研究。結果錶明，該礦石含鐵較高，鐵礦物類型複雜，以磁鐵礦為主，含少量赤、褐鐵礦，有害雜質硫含量較高。礦石中存在鎂和鐵的類質同象混雜，其磁鐵礦純礦物品位低于68％，用機械選礦技術精礦鐵品位不能提到68％以上。試驗採用粗磨後磁選-反浮選或兩段細磨後磁選工藝，均可得到鐵品位67％以上、硫含量降至0．1％以下的閤格鐵精礦。
진행료이랑모함류자철광석적공예광물학연구、선별공예연구。결과표명，해광석함철교고，철광물류형복잡，이자철광위주，함소량적、갈철광，유해잡질류함량교고。광석중존재미화철적류질동상혼잡，기자철광순광물품위저우68％，용궤계선광기술정광철품위불능제도68％이상。시험채용조마후자선-반부선혹량단세마후자선공예，균가득도철품위67％이상、류함량강지0．1％이하적합격철정광。
Study on process mineralogy and beneficiation of a sulfur magnetite ore in Iran .The results show that the ore contain high iron content ,and iron minerals type are complex ,dominated by magnetite , containing a small amount of Hematite ,Limonite ,the harmful impurities sulfur content higher .Because of isomorphism of magnesium and iron ,the pure magnetite mineral grade is less than 68% Fe ,so mechanical beneficiation technology can not be mentioned in more than 68% Fe concentrate .Using a stage grinding and magnetic separation-reverse flotation or magnetic separation process after the two-stage grinding can reach more than 67% of the iron grade ,sulfur content is reduced to less than 0 .1% of the qualified iron ore concentrate .
