工艺矿物学研究用于进口铜精矿的鉴别  

Identification of imported copper concentrate based on process mineralogy study

作　　者：洪秋阳 李波 朱志秀 梁冬云 HONG Qiuyang;LI Bo;ZHU Zhixiu;LIANG Dongyun(Institute of Resources Utilization and Rare Earth Development,Guangdong Academy of Sciences,Guangzhou 510650,China;State Key Laboratory of Rare Metals Separation and Comprehensive Utilization,Guangzhou 510650,China;Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resources,Guangzhou 510650,China;Technical Center for Industrial Product and Raw Material Inspection and Testing of Shanghai Customs,Shanghai 200120,China)

机构地区：[1]广东省科学院资源利用与稀土开发研究所,广东广州510650 [2]稀有金属分离与综合利用国家重点实验室,广东广州510650 [3]广东省矿产资源开发和综合利用重点实验室,广东广州510650 [4]上海海关工业品与原材料检测技术中心,上海200120

出　　处：《冶金分析》2023年第2期8-13,共6页Metallurgical Analysis

基　　金：广东省科学院专项资金项目(2022GDASZH-2022010104)。

摘　　要：天然矿石、火法冶炼渣和湿法冶金渣本质上都是在一定的物理化学条件下的相变结果,物相形成的条件、规律等因素导致三者在物相组合、结晶形态等性状上各具特征。采用矿物自动分析系统(MLA)对一个从赞比亚进口的铜精矿进行工艺矿物学参数测定及研究,样品中硫化铜矿物主要是黄铜矿、斑铜矿、辉铜矿、铜蓝;氧化铜矿物有赤铜矿、孔雀石、假孔雀石、硅孔雀石、水胆矾、铁铜矿和黑铜矿;其他铜物相有金属铜和冰铜。铁矿物有磁铁矿、褐铁矿和铬铁矿;脉石矿物包括石英、长石、绢云母、金云母、普通辉石、角闪石等。样品中冰铜呈球状、磁铁矿呈自形~半自形晶、橄榄石呈短柱状,部分辉铜矿、斑铜矿与玻璃相、角闪石、磁铁矿、冰铜等连生。综合样品的物料组合、主要物相连生关系、微观形貌等工艺矿物学特征,结合岩石学、矿石成因、矿物学理论推断该铜精矿掺杂部分铜的火法冶炼渣。The natural ore, pyrometallurgical slag and hydrometallurgical residue are, essentially, the results of phase transition under certain physical and chemical conditions. The conditions and laws of phase formation led to their own characteristics in terms of phase combination and crystal morphology. The process mineralogy parameters of one copper concentrate imported from Zambia were studied by mineral liberation analyzer(MLA). The results showed that the copper sulfide minerals in the sample mainly included chalcopyrite, bornite, chalcocite and covellite. The copper oxide minerals mainly included cuprite, malachite, pseudomalachite, chrysocolla, brochantite, delafossite, and tenorite. Other copper phases were metallic copper and matte. The iron minerals included magnetite, limonite, and chromite. The gangue minerals included quartz, feldspar, sericite, phlogopite, augite and hornblende. The matte in sample was spherical, the magnetite occurred as euhedral-subhedral crystals, while the olivine occurred as short column. Some chalcocite and bornite grains were intergrown with the glass, hornblende, magnetite, and matte. Based on the petrology, ore genesis and the theories of mineralogy, it was identified that this copper concentrate was mingled with the pyrometallurgical slag of cupper by analyzing its process mineralogy characteristics such as material composition, main phase content and association as well as microscopic morphology.

关 键 词：工艺矿物学 物料组合 天然铜精矿 火法冶炼渣 湿法冶金渣 

分 类 号：TF03[冶金工程—冶金物理化学] TF041