浮选柱在铜钼混合精矿铜钼分离中的应用研究
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摘要
黑龙江多宝山铜矿选矿厂生产的铜钼混合精矿中含铜18.95%、含钼0.42%,为实现铜钼混合精矿中铜钼高效分离,利用浮选柱进行了铜钼分离试验研究。结果表明,采用铜钼混合精矿磨矿后一次粗选、一次扫选、钼粗精矿再磨后四次精选的铜钼分离流程,用浮选柱浮选可获得含钼45.68%、钼回收率82.66%的钼精矿和含铜18.47%、铜回收率99.92%的铜精矿。相比浮选机浮选,浮选柱浮选有效提高了钼精矿质量及钼回收率,增加了工艺流程的稳定性,同时还缩短了钼精选次数,减少了选矿药剂用量及选矿能耗。
The copper-molybdenum mixed concentrate produced by the Heilongjiang Duobaoshan Copper Ore Dressing Plant contains 18.95% copper and 0.42% molybdenum.In order to achieve highefficiency separation of copper and molybdenum in copper-molybdenum mixed concentrate,coppermolybdenum separation test by flotation column was conducted.The results show that the coppermolybdenum separation process with copper-molybdenum mixed concentrate after grinding,one rough,one sweep and four concentration after re-grinding of molybdenum coarse concentrate. A molybdenum concentrate containing 45.68% molybdenum, molybdenum recovery rate of 82.66% and a copper concentrate containing 18.47% copper,copper recovery rate of 99.92% can be obtained with flotation column.Compared with flotation machine,column flotation effectively improves the quality of molybdenum concentrate and molybdenum recovery,increases the stability of the process,and shortens the number of molybdenum concentration,reduces the amount of mineral processing agent and energy consumption.
The copper-molybdenum mixed concentrate produced by the Heilongjiang Duobaoshan Copper Ore Dressing Plant contains 18.95% copper and 0.42% molybdenum.In order to achieve highefficiency separation of copper and molybdenum in copper-molybdenum mixed concentrate,coppermolybdenum separation test by flotation column was conducted.The results show that the coppermolybdenum separation process with copper-molybdenum mixed concentrate after grinding,one rough,one sweep and four concentration after re-grinding of molybdenum coarse concentrate. A molybdenum concentrate containing 45.68% molybdenum, molybdenum recovery rate of 82.66% and a copper concentrate containing 18.47% copper,copper recovery rate of 99.92% can be obtained with flotation column.Compared with flotation machine,column flotation effectively improves the quality of molybdenum concentrate and molybdenum recovery,increases the stability of the process,and shortens the number of molybdenum concentration,reduces the amount of mineral processing agent and energy consumption.
引文
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[2]张文征.2007年钼业年评[J].中国钼业,2007(6):3-11.
[3]刘殿文,张文彬.浮选柱研究及其应用新进展[J].国外金属矿选矿,2002(6):14-17.
[4]郑描,罗冶.铜钼分选改造中新工艺新设备的应用[J].中国矿山工程,2013,42(2):8-11.
[5]姜桐,张彦文.优级钼精粉提纯工艺及生产实践[J].有色矿冶,2017,33(3):26-30.
[6]张乃旭,刘文刚,魏德洲.铜钼混合精矿浮选分离工艺及分离抑制剂研究进展[J].金属矿山,2018(4):35-41.
[7]李尧,文书明,丰奇成,等.铜钼混合精矿浮选分离技术研究进展[J].金属矿山,2018(7):13-18.
[8]王剑,刘子龙,陈国宝,等.铜钼浮选分离中硫化钠的消耗机理[J].东北大学学报(自然科学版),2018,39(3):362-366.
[9]俞娟,杨洪英,方钊,等.某难分离铜钼混合精矿的分离研究[J].稀有金属,2014,38(3):494-501.
[10]郭美玲.浮选柱工作原理及其在铜、钼浮选中的运用研究[J].中国金属通报,2016(10):61-62.
[11]曾海鹏,喻东,徐世权.丰山铜矿铜钼分离浮选柱工业试验研究[J].中国矿山工程,2016,45(6):16-19.