Mineral processing technology of a high iron-Cu-S ore
Mineral processing technology of a high iron-Cu-S ore
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发表时间：
2014
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通讯作者：
Xi Zhifen
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作者：
Xi Zhifen
针对某高铁铜硫矿石的特点，在75μm磨矿细度为70%的条件下，以碳酸钠为pH调节剂，以丁基黄药和丁基铵为硫化铜混合浮选的组合捕收剂，将硫化铜粗精矿再磨至45 μm占85%后，从磁选尾矿中回收铁，以DT-2#[有效成分为Ca（ClO）2]作为黄铁矿的新型无机抑制剂，实现铜与硫化物的分离。试验结果表明，采用“硫化铜混合浮选-粗精矿再磨-硫化铜分离-磁选尾矿”工艺流程，可获得含铜22.36%、铜回收率87.29%、含硫38.43%、硫回收率62.88%的铜精矿、硫精矿和铁精矿，对含铜0.52%、硫2.31%、铁49.26%的原料矿，铁回收率为91.34%，铁回收率为66.98%。该工艺操作简单，结晶度好。
In light of the characteristics of a high iron Cu-S ore, under the condition of 75μm grinding fineness being 70 %,using sodium carbonate as pH adjusting agent,with butyl xanthate and ammonium butyl as the combination collector of copper sulfide mixed flotation,iron is recovered from magnetic flotation tailings after the copper sulfide crude concentrate is regrinded to 45 μm which accounts for 85 %, with DT-2#[The active ingredient is Ca(ClO)2]as the new inorganic inhibitor of pyrite to separate copper and sulfide. The test results show that using the process of "copper sulfide mixed flotation-crude concentrate regrinding-copper sulfide separation-magnetic flotation tailings", copper concentrate, sulfur concentrate and iron concentrate can be obtained containing 22.36 % of Cu with copper recovery rate of 87.29 %,38.43 % of S with sulfur recovery rate of 62.88 %,and 66.98 % of Fe and iron recovery rate of 91.34 % respectively from a feed ore containing0.52 % Cu, 2.31 % S and 49.26 % Fe. The process is simple to use with a good beneficiation index.