提高某低品位斑岩型铜钼矿石混浮精矿指标试验

金属矿山 ›› 2015, Vol. 44 ›› Issue (09): 65-67.

提高某低品位斑岩型铜钼矿石混浮精矿指标试验

陆兆锋¹，王明芳²

1.中国黄金集团公司，北京 100011；2.华研精粹(北京)科技股份公司，北京 100088

出版日期:2015-09-15 发布日期:2015-11-20

Experiments on Cu-Mo Mixed Concentrate Index Improving for a Low Grade Porphyry Cu-Mo Ore

Lu Zhaofeng¹，Wang Mingfang²

1.China National Gold Group，Beijing 100011，China；2.Precision Recycling Technologies Co.，Ltd.，Beijing 100088，China

Online:2015-09-15 Published:2015-11-20

摘要/Abstract

摘要： 某斑岩型铜钼矿石铜、钼品位分别为0.339%和0.022%，现场在磨矿细度为-0.074 mm占60%的情况下，先采用1粗3精3扫、中矿顺序返回流程获得铜钼混合精矿，再进行铜钼分离，但混合精矿Cu、Mo品位分别仅为17.23%、0.629%，Cu、Mo回收率分别仅为86.40%、48.60%。为改善混合浮选指标，在现场磨矿细度下进行了药剂优化研究。结果表明，在选矿工艺流程不变的情况下，用捕收剂Pj-053+荆江钼替代Pj-053+变压器油，最终可获得铜、钼品位分别为18.89%、1.023%，铜、钼回收率分别为92.50%、77.19%的铜钼混合精矿，与现场生产指标比较，混合精矿Cu、Mo品位分别提高了1.66、0.394个百分点，Cu、Mo回收率分别提高了6.10、28.59个百分点，指标改善显著。

关键词: 低品位斑岩型铜钼矿, 混合浮选, 药剂优化, 荆江钼

Abstract: The copper and molybdenum content of a low grade porphyry Cu-Mo ore are 0.339% and 0.022%，respectively.Cu-Mo mixed concentrate which will endure separation of copper from molybdenum,with Cu grade and recovery of only 17.23% and 86.40%，and Mo grade and recovery of only 0.629% and 48.60% was obtained fristly through the closed-circuit process of one roughing，three cleaning and three scavenging at the grinding fineness of 60% passing 0.074 mm.Reagents optimization experiments were conducted at the grinding fineness of on-site process to improve the bulk flotation index.The results indicated that：the collector of Pj-053+transformer oil replaced by Pj-053+Jingjiang-molybdenum in the original process，Cu-Mo mixed concentrate with Cu grade and recovery of 18.89% and 92.50%，and Mo grade and recovery of 1.023% and 77.19% were obtained respectively.Compared with the on-site process，mixed concentrate of Cu and Mo grade increased 1.66 and 0.394 percentage points，Cu and Mo recovery increased 6.10 and 28.59 percentage points.Index was improved significantly.

Key words: Low grade porphyry Cu-Mo ore, Bulk flotation, Reagents optimization, Jingjian-molybdenum

陆兆锋, 王明芳. 提高某低品位斑岩型铜钼矿石混浮精矿指标试验[J]. 金属矿山, 2015, 44(09): 65-67.

LU Zhao-Feng, WANG Ming-Fang. Experiments on Cu-Mo Mixed Concentrate Index Improving for a Low Grade Porphyry Cu-Mo Ore[J]. Metal Mine, 2015, 44(09): 65-67.

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