普朗铜矿粗颗粒水力浮选实验研究OACSTPCD
HydroFloat Separation Tests of Coarse Particles from Pulang Copper Mine
针对云南普朗斑岩型铜矿难磨难选的特点,在分析矿石性质的基础上进行粗颗粒水力浮选实验.矿石中的铜主要以黄铜矿形式赋存,钼主要以辉钼矿形式赋存,脉石矿物主要为石英及钠/钙长石.采用HydroFloat水力浮选机对粗颗粒铜钼矿进行混合浮选,达到抛尾目的,减少后续磨矿能耗.HydroFloat水力浮选机在传统流化床的基础上引入气泡,通过复合力场使粗颗粒悬浮后随气泡上升达到分选目的.经水力浮选后,可从铜品位 0.39%和含钼 0.009%的原矿浮选得到铜品位为 0.73%、回收率为 95.84%,钼品位为 0.016%、回收率为 92.05%的铜钼混合粗精矿,抛尾率可达 48.80%.
Porphyry copper mine from Yunnan is refractory both in grinding and separation.HydroFloat separation method was employed for coarse particle flotation based on the analysis of ore properties.The target minerals are clopyrite and molybdenite,and gangue minerals mainly quartz and sodium/calcium feldspar.After screening,bulk flotation was conducted with HydroFloat to cast away coarse gangue minerals,which subsequently reduce the energy consumption of further grinding.HydroFloat flotation induces air bubbles based on the traditional fluidized beds,where the suspended coarse particles rise along with bubbles under compound force field.With a tailing disposal rate of 48.80%,the grade of copper increased from 0.39%to 0.73%with a recovery of 95.84%,and the grade of molybdenum increased from 0.009%to 0.016%with a recovery of 92.05%.
罗选旭;封东霞;童雄;熊宇农;罗亨通;郭明龙;董梦
昆明理工大学 国土资源工程学院,云南 昆明 650093||金属矿尾矿资源绿色综合利用国家地方联合工程研究中心,云南 昆明 650093
矿山工程
斑岩型铜矿粗颗粒水力浮选铜钼混合粗精矿
porphyry copper minecoarse particlesHydroFloat separationcopper-molybdenum bulk rough concentrate
《矿产保护与利用》 2024 (003)
81-88 / 8
国家自科基金地区基金项目(52264025);云南省"兴滇英才支持计划"青年人才项目(KRD202221056)
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