ABSTRACT

This study involved the chemical and detailed mineralogical analysis of the final copper concentrate produced at the Lubin Concentrator, one of the concentrating plants of the Mining–Smelting Complex KGHM Polska Miedz SA. The KGHM Complex mines and processes are one of the world’s biggest stratiform-type copper deposits. The ore processed in the Lubin Concentrator is the poorest in metals from the ores mined in the KGHM mines and is difficult for upgrading. The copper flotation concentrates produced at the Lubin Concentrator are characterized by polymetallic (Cu-Ag-Pb), polymineral and fine-grained composition, with the lowest content of copper (below 14%) among three concentrator plants of the KGHM. The total content of sulfide minerals is about 33%. The main sulfides are chalcopyrite, bornite, galena, and pyrite with marcasite. The aim of this study is an attempt to explain the causes of the low quality of concentrates produced in the Lubin Concentrator. For this purpose, a detailed quantitative mineral analysis of a commercial concentrate sample was performed. There were also performed operations consisting in non-oxidative acid leaching of gangue minerals followed by flotation of the concentrate with the use of a depressant. The obtained results are important and promising for the smelting use of these concentrates.

摘要

该研究涉及对 Lubin 选矿厂生产的最终铜精矿进行化学和详细矿物学分析，该选矿厂是 KGHM Polska Miedz SA 的选矿厂之一。KGHM Complex 矿山和工艺流程是世界上最大的层状铜矿床之一。鲁宾选矿厂加工的矿石是 KGHM 矿山开采的矿石中金属含量最差的，难以升级。鲁宾选矿厂生产的铜浮选精矿具有多金属（Cu-Ag-Pb）、多矿物和细粒组成，在 KGHM 的三个选矿厂中铜含量最低（低于 14%）。硫化矿物的总含量约为33%。主要硫化物是黄铜矿、斑铜矿、方铅矿和黄铁矿和白铁矿。本研究的目的是试图解释鲁宾选矿厂生产的精矿质量低的原因。为此，对商业精矿样品进行了详细的定量矿物分析。还进行了包括脉石矿物的非氧化酸浸，然后使用抑制剂浮选精矿的操作。所获得的结果对于这些精矿的冶炼用途是重要且有前景的。还进行了包括脉石矿物的非氧化酸浸，然后使用抑制剂浮选精矿的操作。所获得的结果对于这些精矿的冶炼用途是重要且有前景的。还进行了包括脉石矿物的非氧化酸浸，然后使用抑制剂浮选精矿的操作。所获得的结果对于这些精矿的冶炼用途是重要且有前景的。