某低品位铜镍硫化矿浮选试验研究

以某地强蚀变蛇纹石型难选低品位铜镍硫化矿为研究对象, 在矿石工艺矿物学研究的基础上, 通过系统的浮选试验, 对含镍0.159%, 含铜0.094%的原矿, 在磨矿粒度为-0.074 mm粒级占70%时, 采用碳酸钠和六偏磷酸钠作为脉石矿物抑制剂, 丁基黄药和Y89-0混合黄药为铜镍硫化矿物捕收剂, MIBC为起泡剂, 获得了铜镍品位分别为2.861%和3.228%的铜镍混合精矿。混合精矿采用石灰作镍矿物抑制剂进行分离, 得到含铜15.93%, 含镍1.41%的铜精矿, 铜回收率达81.34%; 镍精矿含铜0.59%, 含镍5.98%, 镍回收率为56.04%; 分选指标较为理想。

Experimental Study on the Flotation of a Low-grade Copper-Nickel Sulfide Ore

Systematical flotation experiments were performed based on the mineralogical study of a refractory low-grade and strongly altered serpentine-type copper-nickel sulfide ore.For this raw ore containing 0.159% of Ni and 0.094% of Cu,when the grinding fineness was-0.074 mm about 70%,sodium carbonate and sodium hexametaphosphate were used as gangue depressants,a mixture of sodium butyl xanthate and Y89-0 was used as collectors,and MIBC was used as frother,a bulk concentrate containing 2.861% of Cu and 3.228% of ...