矿产综合利用2025，Vol.46Issue(3)：142-148,7.DOI:10.12476/kczhly.202210110643
尼日尔某氧化铜矿工艺矿物学及回收工艺
Process Mineralogy and Recovery Process of a Copper Oxide Mine in Niger
摘要
Abstract
Taking a copper oxide ore from Niger as a research object,a detailed process mineralogical study on the raw ore was carried out by chemical analysis,X-ray diffraction analysis and optical microscope analysis.The results show that the original ore contains 6.04％copper,65.07％of which is free copper oxide and 31.95％is bound copper oxide,respectively,which is a high binding rate copper oxide ore.The metallic minerals in the ore are mainly malachite,blue copper ore,silica malachite,pyroxene,pyrite and limonite,and the vein minerals include potassium feldspar,plagioclase,quartz and black mica,which is a complex mineral composition.Most of the copper in the original ore exists in the form of blue copper ore and malachite,and is mainly embedded in quartz,feldspar and other veinlets.The combined flotation-leaching process was proposed in the paper.After flotation,a copper concentrate with a copper grade of 28.23％and a recovery of 56.18％was obtained,and the tailings were directly leached with dilute sulfuric acid,with a leaching rate of 91.15％and a comprehensive recovery of 96.25％copper.关键词
尼日尔/氧化铜矿/工艺矿物学/选冶联合Key words
Niger/copper oxide ore/process mineralogy/combined metallurgical processing分类
矿业与冶金引用本文复制引用
黄典强,崔毅琦,肖有明,王靖,张洋,童雄..尼日尔某氧化铜矿工艺矿物学及回收工艺[J].矿产综合利用,2025,46(3):142-148,7.基金项目
云南省重大科技项目(202202AG050010) （202202AG050010）
