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碳质铅锌矿中锌资源的选矿回收研究进展
Research progress on beneficiation and recovery of zinc resources in carbonaceous lead-zinc ores
【摘要】 碳质铅锌矿是一种非常规锌矿资源,主要以碳酸盐岩-细碎屑岩型(SEDEX)为代表,具有锌矿物铁含量高、共伴生碳质页岩和硫含量高等特点。在开发利用这类含碳锌矿资源时,常常面临碳质物可浮性差异大以及锌硫矿物分离难度大等问题。本文针对这一类型含碳锌矿资源的富集回收,总结了碳质物、铁闪锌矿和黄铁矿的浮选行为;阐述了碳质物的组成特点及对浮选的影响,并梳理了其相关分选工艺;总结了铁闪锌矿和黄铁矿的铜离子活化机理、铁含量对锌矿物活化的影响以及药剂与工艺对二者分离的研究进展;指出碳质铅锌矿资源在选矿回收的研究中应注重碳质的脱除和锌矿物的回收。
【Abstract】 Carbonaceous lead-zinc ore is an unconventional zinc resource primarily found in sedimentary exhalative(SEDEX) deposits. It is characterized by a high iron content in zinc minerals, the co-occurrence of carbonaceous shale and a high sulfur content. When these carbonaceous zinc ores are developed and utilized,common challenges are often encountered, including significant variability in the floatability of carbonaceous materials and the difficulty in separating zinc and sulfur minerals. In this paper, a systematic summary of the flotation behavior of carbonaceous materials, marmatite, and pyrite in the enrichment and recovery of these carbonaceous lead-zinc ore were provided. The characteristics of carbonaceous material and their effect on flotation were elaborated, and the different separation processes were reviewed. For marmatite and pyrite, the activation mechanisms of copper ions, the influence of iron content on the activation of zinc minerals, as well as the research progress on their separation from the perspectives of reagents and processes were summarized.Finally, the study pointed out the importance of carbonaceous materials and zinc minerals recovery in the research of minerals processing of carbonaceous lead-zinc ores.
【Key words】 carbonaceous; marmatite; pyrite; copper activation; efficient separation;
- 【文献出处】 中南大学学报(自然科学版) ,Journal of Central South University(Science and Technology) , 编辑部邮箱 ,2024年12期
- 【分类号】TD952
- 【下载频次】29