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作 者:陈旭波 刘万峰 于志超 CHEN Xubo;LIU Wanfeng;YU Zhichao(BGRIMM Techndogy Group Co.,Ltd.,Beijing 102628,China;State Key Laboratory of Mineral Processing Science and Technology,Beijing 102628,China)
机构地区:[1]矿冶科技集团有限公司,北京102628 [2]矿物加工科学与技术国家重点实验室,北京102628
出 处:《中国矿业》2024年第S02期399-404,共6页China Mining Magazine
摘 要:某次生硫化铜矿位于非洲东部地区,原矿含铜3.02%、铁26.36%,具有较高的回收价值,同时,该矿样中白云石、方解石和绿泥石等易泥化矿物占比超50%,该部分矿物对铜的浮选干扰较大。针对上述问题,以丁基黄药和Z-200为捕收剂,MIBC为起泡剂,石灰和NJ-8为调整剂,采用“快速浮选加强化粗选、粗精矿再磨精选回收铜矿物,浮选尾矿磁选回收铁矿物”流程,闭路试验可获得含铜28.52%、铜回收率89.39%的铜精矿与含铁60.01%、铁回收率32.64%的铁精矿,有效回收了该矿样中的铜资源、铁资源。A secondary sulfide copper mine is located in the eastern region of Africa,with a copper content of 3.02%and an iron content of 26.36%,which has high recycling value.At the same time,the proportion of easily mud prone minerals such as dolomite,calcite,and chlorite in the ore sample exceeds 50%,which greatly interfere with the flotation of copper.Based on the study of process mineralogy,using butyl xanthate and Z-200 as collectors,MIBC as frothers,lime and NJ-8 as regulators,the process of“rapid flotation with enhanced coarse selection,coarse concentrate regrinding and selection to recover copper minerals,and flotation tailings magnetic separation to recover iron minerals”is adopted.Closed circuit testing shows that copper concentrate with a copper grade of 28.52%and a copper recovery of 89.39%,and iron concentrate with an iron grade of 32.64%and recovery of 60.01%.The copper and iron resources in the ore sample have been effectively recovered.
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