摘要
对某钼铜铁多金属矿矿石进行了工艺矿物学研究,该矿石是以钼为主、并生铜铁的多金属矿。根据矿石的性质,采用钼铜混合浮选混合精矿再分离—尾矿磁选选铁的工艺流程。铜钼混合浮选时,采用煤油、柴油混合捕收剂,有利于提高钼回收率,采用选铜特效捕收剂BK802,有利于提高铜的回收率。铜钼混合精矿分离时,采用煤油作为捕收剂,最终选择BK310进行铜钼分离。对铜钼混选尾矿进行了选铁实验,最适宜的磁场强度为0.12～0.16T之间。研究结果表明:在原矿铜品位0.082%的情况下,可以得到含铜品位15.16%、铜回收率80.54%的铜精矿;采用新型抑制剂BK310,一次分离三次精选即得到钼精矿钼品位50.87%,回收率85.94%;磁铁矿单体解离较好,一次粗选后再磨,得到铁精矿铁品位69.47%、铁回收率41.89%的铁精矿。
The mineralogical examination was studied on the Mo-Cu-Fe polymetallic ore.The main mineral in this ore is molybdenum mineral,accompanying with copper and iron minerals.According to the ore property,the molybdenum minerals and copper minerals were recovered with bulk flotation,and then the bulk concentrate was separated.The combined kerosene-diesel oil reagents is used to improve molybdenum recovery and effective collector BK802 was used to improve copper recovery in the bulk floatation.Only kerosene is used in the copper-molybdenum separation step.The effects of depressants BK310 and BK311 were compared,then BK310 was chosen.The iron minerals were selected with magnetic separation method from the bulk flotation tailing and the optimal magnetic field is between 0.12～0.16 T.The results obtained a copper concentrate with the copper grade of 15.16% and recovery of 80.54% respectively under the copper grade of raw ore on 0.082%,a molybdenum concentrate with the molybdenum grade of 50.87% and recovery of 85.94% respectively using new depressant BK310 with three cleaning,Magnetic separation tests obtained an iron concentrate containing 69.47% Fe and the recovery of Fe was 41.89% after one regrinding stage for its good liberation.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2011年第1期89-95,共7页
Chinese Journal of Rare Metals
基金
"十一五"国家科技支撑课题(2006BAB02A08)资助
关键词
铜钼混合浮选
混合精矿再分离
尾矿选铁
磁选
copper-molybdenum bulk flotation
separation of copper and molybdenum minerals
magnetic separation from tailing
magnetic separation
