低品位氧化铜钴矿堆浸试验研究  

Heap Leaching of Low-Grade Copper-Cobalt Oxide Ore

作　　者：李相良 薛济来[2] 秦树辰 徐敬元 冯亚平 LI Xiangliang;XUE Jilai;QIN Shuchen;XU Jingyuan;FENG Yaping(Norin Mining Co.,Ltd.,Beijing 100053,China;University of Science and Technology Beijing,Beijing 100083,China;BGRIMM Technology Group,Beijing 100160,China)

机构地区：[1]北方矿业有限责任公司,北京100053 [2]北京科技大学,北京100083 [3]矿冶科技集团有限公司,北京100160

出　　处：《矿冶工程》2024年第5期105-108,共4页Mining and Metallurgical Engineering

基　　金：国家重点研发计划(2022YFC2904604)。

摘　　要：对刚果(金)某低品位氧化铜钴矿资源进行了堆浸试验研究,考察了喷淋强度、喷淋酸度和矿石粒度对铜钴浸出率的影响。结果表明,喷淋酸度和喷淋强度对铜钴浸出速度和累计浸出率影响显著,而矿石粒度对浸出过程影响不大。确定了低品位氧化铜钴矿适宜的堆浸条件为:喷淋酸度20 g/L,喷淋强度15 L/(m^(2)·h),矿石粒度-40 mm。在此条件下,堆浸100 d,铜和钴累计浸出率分别可达90.89%和82.27%。A heap leaching test was carried out for the low⁃grade copper⁃cobalt oxide ores from Congo(DRC),and effects of spray intensity,spray acidity and ore particle size on the leaching rates of copper and cobalt were investigated.The results show that both acidity and intensity of spray bring significant impact to the speed and cumulative rates of copper and cobalt leaching,while the ore particle size has little effect on leaching process.And finally,the optimal conditions for heap leaching of low⁃grade copper⁃cobalt ore were determined,including spray acidity at 20 g/L,spray intensity of 15 L/(m^(2)·h),and ore particle size of less than 40 mm.It is shown that the cumulative leaching rates of copper and cobalt can reach 90.89%and 82.27%,respectively,after 100 days of heap leaching.

关 键 词：堆浸 氧化铜钴矿 低品位 喷淋强度 喷淋酸度 矿石粒度 浸出率 

分 类 号：TF111[冶金工程—冶金物理化学]