云南某氧化铜浮选试验研究
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摘要
对云南某氧化铜矿进行浮选试验研究。原矿含Cu 1.60%,含Ag 68.20g/t,铜氧化率为93.92%,属于氧化铜矿石,原矿组成复杂,主要的铜矿物有孔雀石、蓝铜矿等,主要脉石矿物为石英、白云石。试验方案采用优选硫化铜后浮选氧化铜工艺流程,结果表明,在磨矿细度为-74μm含量65%,丁基黄药和丁基铵黑药为捕收剂,硫化钠和水玻璃为调整剂,松醇油为起泡剂的条件下,经两次粗选、一次扫选、两次精选的浮选流程获得铜精矿Cu品位26.68%,Cu回收率94.12%,Ag品位1 094.46g/t,Ag回收率94.04%的良好试验指标。
Experimental study on flotation of an oxidized copper ore from Yunnan province.The ore contains Cu 1.60%,Ag 68.20 g/t,and the copper oxidation rate is 93.92%.Raw ore has a complex composition,and the ore is a type of copper oxide ore.The main copper minerals are malachite,azurite,etc.The main gangue minerals are quartz and dolomite.The test scheme adopts flotation copper oxide process after preferential copper sulfide.In the grinding fineness of-74μm accounted for 65%,butyl xanthate and butylamine as collectors,sodium sulfide and water glass as regulators,alcohol oil as the foaming agent,after two rough selection,one sweep and two selected flotation processes obtained copper concentrate grade of 26.68%,Cu recovery of 94.12%,and Ag grade of 1 094.46 g/t,and an Ag recovery of 94.04%,which is good test index.
Experimental study on flotation of an oxidized copper ore from Yunnan province.The ore contains Cu 1.60%,Ag 68.20 g/t,and the copper oxidation rate is 93.92%.Raw ore has a complex composition,and the ore is a type of copper oxide ore.The main copper minerals are malachite,azurite,etc.The main gangue minerals are quartz and dolomite.The test scheme adopts flotation copper oxide process after preferential copper sulfide.In the grinding fineness of-74μm accounted for 65%,butyl xanthate and butylamine as collectors,sodium sulfide and water glass as regulators,alcohol oil as the foaming agent,after two rough selection,one sweep and two selected flotation processes obtained copper concentrate grade of 26.68%,Cu recovery of 94.12%,and Ag grade of 1 094.46 g/t,and an Ag recovery of 94.04%,which is good test index.
引文
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[2]孙玉秀,周平,庄故章,等.云南某地难选氧化铜矿选矿试验研究[J].矿业工程,2010,8(1):30-32.
[3]王鹏程,陈志勇,曹志明,等.氧化铜矿石的选矿技术现状与展望[J].金属矿山,2016(5):106-112.
[4]叶富兴,李沛伦,王成行,等.某复杂氧化铜矿浮选工艺研究[J].矿山机械,2014,42(5):109-113.
[5]梁溢强,简胜,刘玫华,等.某难选氧化铜铅矿选矿试验研究[J].云南冶金,2014,43(6):9-13,21.
[6]宁发添,冯忠伟,莫江敏,等.广西某难选氧化铜矿选矿试验研究[J].有色金属(选矿部分),2018(4):15-18.
[7]熊堃.高泥赤铜矿型氧化铜矿浮选试验及理论研究[D].昆明:昆明理工大学,2011.