氧化铜钴精矿浸出试验研究

以硫酸为浸出剂,针对某含铜5.75%、含钴0.34%、以铜计氧化率为78.96%的氧化铜钴精矿进行了浸出工艺研究。结果表明,在浸出温度50℃、酸矿比0.3∶1、液固比4∶1、浸出时间6 h条件下,以渣计铜浸出率达到94.34%、钴浸出率达到97.57%,浸出液中铜含量为12.38 g/L,钴含量为0.73 g/L,铁、锰、镁等杂质含量均较低。

Leaching Test of an Oxidized Copper-Cobalt Concentrate

Leaching test was conducted with sulfuric acid as leaching agent for an oxidized copper?cobalt concentrate containing 5.75% copper and 0.34% cobalt, with copper oxidation rate at 78.96%. The leaching test at the temperature of 50 ℃, with sulfuric acid and ore in the ratio of 0.3∶1 and liquid?solid ratio at 4∶1, leaching time of 6 h, resulted in the copper and cobalt leaching rates in terms of leach residue reaching 94.34%and 97.57%, respectively, and the leach solution containing 12.38 g/L copper, 0.73 g/L cobalt and trace of impurities of iron, manganese, magnesium, etc.