摘要
刚果(金)某地"铜高钴低"氧化铜钴矿含铜2.52%、含钴0.12%,铜氧化率为94.60%,采用酸性浸出工艺回收该矿中的铜、钴。结果表明,在矿物-0.074 mm粒级含量占80%、液固比2∶1、一次性添加硫酸量为150 kg/t的条件下常温浸出2 h,铜、钴浸出率分别达到93.80%和94.97%,吨矿耗酸量为62.19 kg(折合吨铜耗酸量为2.82 t)。利用常温酸浸工艺处理该氧化铜钴矿,可有效回收铜、钴,可为经济开发类似矿山提供参考。
A kind of high-copper and low-cobalt copper-cobalt oxide ore in Congo(DRC) contains 2.52% Cu and 0.12% Co, with the copper oxidation rate at 94.60%. An acid leaching process was adopted in the test to recover the Cu and Co therein. With the feeding minerals at a sizing of 80%-0.074 mm and liquid-solid ratio of 2∶1, the leaching process at room temperature for 2 h by a single addition of sulfuric acid at 150 kg/t results in leaching rates of Cu and Co reaching 93.80% and 94.97% respectively, with the acid consumption per ton of ore at 62.19 kg(equivalent to 2.82 t sulfuric acid per ton of copper). It is shown that Cu and Co can be effectively recovered from such kind of copper-cobalt oxide ore by adopting an acid leaching process at normal temperature, which can be of a reference for the development of similar mines in an economic way.
作者
杨玮
王倩
王刚
YANG Wei;WANG Qian;WANG Gang(School of Resources Engineering,Xi′an University of Architecture and Technology,Xi′an 710055,Shaanxi,China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2019年第6期75-77,84,共4页
Mining and Metallurgical Engineering
基金
国家自然科学基金(51474169)
陕西省工业科技攻关项目(2016GY-154)
陕西省教育厅重点实验室科研计划项目(18JS061)
关键词
氧化铜钴矿
酸浸
浸出率
酸耗
铜
钴
copper-cobalt oxide
acid leaching
leaching rate
acid consumption
Cu
Co
