DEVELOPMENT OF TECHNOLOGICAL AND REAGENT REGIMES FOR OBTAINING PYRITE CONCENTRATE FROM CURRENT TAILINGS OF MOF-1 OF ALMALYK MINING AND METALLURGICAL COMPLEX

The rational use of mineral resources and the reduction of industrial waste are among the most important tasks of modern mining and metallurgical production. Large volumes of flotation tailings accumulated at mining and processing enterprises contain significant amounts of valuable components that can be reprocessed using modern beneficiation technologies. One such example is the current tailings of the MOF-1 (Mining and Ore Processing Factory No.1) of Almalyk Mining and Metallurgical Combine (AGMK), which contain sulfide minerals, particularly pyrite. Pyrite concentrates are widely used in sulfuric acid production and metallurgical processes. The purpose of this research is to develop technological and reagent regimes for obtaining pyrite concentrate from current tailings of MOF-1. The study examines the mineralogical composition of the tailings, flotation conditions, reagent selection, and optimization of technological parameters. Experimental results demonstrate that appropriate reagent regimes and flotation conditions significantly improve pyrite recovery from tailings. The obtained pyrite concentrate meets industrial requirements for further chemical processing. The research contributes to improving resource efficiency, reducing environmental impact, and increasing the economic value of mining waste through secondary processing.合理利用矿产资源、削减工业废弃物排放，是现代矿冶生产的核心任务之一。矿山选矿企业堆积的大量浮选尾矿中，蕴含着大量可通过现代选矿技术进行二次回收利用的有价组分。其中典型案例为阿尔马雷克矿冶联合企业（Almalyk Mining and Metallurgical Combine, AGMK）旗下MOF-1选矿厂（一号采矿选矿厂，Mining and Ore Processing Factory No.1）的现有尾矿，该尾矿中赋存硫化矿物，尤以黄铁矿为主。黄铁矿精矿广泛应用于硫酸生产及冶金流程当中。本研究旨在开发一套可从MOF-1现有尾矿中回收黄铁矿精矿的工艺制度与药剂制度。研究内容涵盖尾矿矿物组成分析、浮选条件探究、药剂筛选以及工艺参数优化。实验结果表明，合理的药剂制度与浮选条件可显著提升尾矿中黄铁矿的回收率。所获得的黄铁矿精矿可满足后续化工处理的工业使用要求。本研究通过对采矿废弃物的二次加工利用，有助于提升资源利用效率、降低环境影响并提升矿业废弃物的经济价值。