河北某斑岩型钼矿提高选矿指标试验研究  

Study on the test for improvement of beneficiation specification of a porphyry Mo deposit in Hebei province

作　　者：刘国英[1] 郭文军[1] 祖述宇 

机构地区：[1]中钢集团天津地质研究院,天津300181

出　　处：《地质找矿论丛》2013年第3期486-492,共7页Contributions to Geology and Mineral Resources Research

摘　　要：河北省某钼矿为单一斑岩型钼矿,主要金属矿物为辉钼矿。为了进一步提高钼精矿的品位和回收率,试验采用混合捕收剂(煤油∶2号油=2∶1)和新型捕收剂PE-100相结合的方法,粗选时可使粗精矿的回收率提高2个百分点,品位也略有提高。为节约生产成本,试验采用阶段磨矿阶段选别的选矿工艺,即原矿磨矿(-0.074mm占60%)后,经一次粗选,一次扫选,粗精矿再磨(-0.038mm占85%)后再进行5次精选,最终获得钼精矿品位w(Mo)=50.007%,回收率为89.90%的较好指标。In Hebei province there is a single Mo porphyry deposit in which molybdenite is the major metal mineral. In order to improve the mixed collector of kerosene ＋ oi the concentrate is improved by 2 ore is adopted, i.e. the raw ore 1 No. 2 and is mill grade of the concentrate and the recovery a test of combination of （2 ：1） and a new collector PE-100 is carried out and recovery of the grade is slightly improved. For cost reduction stage milling of ed to mesh --200 about 60G when a roughing and scavenging is carried out. Then the rough concentrate is milled to mesh --400 about 85% and 5 times of careful concen tration conducted with final Mo concentrate of w（Mo）=50. 007% and recovery of 89.90%.

关 键 词：斑岩型钼矿 单一钼矿 混合捕收剂 新型捕收剂 回收率 河北省 

分 类 号：TD913[矿业工程—选矿]