锡铁山深部铅锌矿石工艺矿物学特征及其浮选性能

发布时间：2018-10-16 17:03

【摘要】：为高效利用锡铁山深部(-2 702 m)铅锌矿石资源,鉴于工艺矿物学对矿石浮选性能研究的重要指导作用,利用X射线衍射(XRD)分析仪和显微镜照相等测试分析技术,对该矿石进行了详尽的工艺矿物学研究,并探究了矿石的浮选特性。结果表明,矿石中金属矿物主要是黄铁矿,其次为闪锌矿和方铅矿,还可见少量的磁铁矿、褐铁矿、黄铜矿、铁闪锌矿、磁黄铁矿,可综合回收的有价矿物为铅、锌、硫及伴生金银,脉石矿物则以透辉石居多,其次是石英、方解石、绿泥石;方铅矿和闪锌矿分别呈中-细粒及中粒嵌布特征,大部分有用矿物的嵌布粒度在74μm以上,对矿物之间的解离十分有利。浮选试验结果表明,在较粗的磨矿细度下,即可实现矿石中主金属铅锌的高效浮选,实验室利用现有生产工艺处理该矿石,可获得理想的选矿综合指标,试验结果可为生产现场进行深部矿石的选矿生产提供技术依据。
[Abstract]:In order to make efficient use of the (-2702 m) lead and zinc ore resources in the deep Xitieshan, in view of the important guiding role of technological mineralogy in the study of flotation properties of ores, X-ray diffraction (XRD) analyzer and microscope photography were used to test and analyze the ore flotation properties. The ore was studied in detail by technological mineralogy, and the flotation characteristics of the ore were investigated. The results show that the main metal minerals in the ore are pyrite, followed by sphalerite and galena, and a small amount of magnetite, limonite, chalcopyrite, sphalerite and pyrrhotite are also found. For sulfur and associated gold and silver, diopside is the most common gangue mineral, followed by quartz, calcite, chlorite, galena and sphalerite, respectively. It is beneficial to the dissociation of minerals. The results of flotation test show that the high efficiency flotation of lead and zinc in main metal can be realized under the condition of coarse grinding fineness, and the ideal comprehensive index of ore dressing can be obtained by using the existing production technology to treat the ore in laboratory. The test results can provide technical basis for deep ore processing.
【作者单位】：江西理工大学资源与环境工程学院;西部矿业集团有限公司技术研究院;青海省高原矿物加工工程与综合利用重点实验室;
【基金】：青海省企业研究转化与产业化专项(2016-GX-C9) 青海省重点实验室发展专项(2014-Z-Y10;2014-Z-Y27)
【分类号】：TD91;TD923

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