三道庄矿区高氧化率钼矿石的工艺矿物学  

Process Mineralogy of Molybdenum Ore with High Oxidation Rate in Sandaozhuang Mining Area

作　　者：靳建平 车文芳 何亚清 刘书鹏 李付博 杨剑波 陈炳龙 Jin Jianping;Che Wenfang;He Yaqing;Liu Shupeng;Li Fubo;Yang Jianbo;Chen Binglong(Luoyang Luanchuan Molybdenum Industry Group Co.,Ltd,Luoyang,Henan,China;Xi'an Northwest Nonferrous Geological Research Institute Co.,Ltd,Xi'an,Shaanxi,China)

机构地区：[1]洛阳栾川钼业集团股份有限公司,河南洛阳114043 [2]西安西北有色地质研究院有限公司,陕西西安110054

出　　处：《矿产综合利用》2023年第5期93-99,126,共8页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金青年项目(51904222)。

摘　　要：这是一篇工艺矿物学领域的论文。本文利用化学多元素分析、化学物相分析、光学显微镜及矿物参数自动分析系统(MLA)等综合手段,对三道庄矿区高氧化率钼矿石的矿石化学成分、矿物组成、钼和钨的赋存状态以及目的矿物的嵌布特征等影响钼回收的矿物学因素进行了系统的工艺矿物学研究。结果表明,矿石中Mo含量为0.06%,WO_(3)含量0.10%;矿石中主要金属矿物为黄铁矿、磁铁矿、辉钼矿、白钨矿和黄铜矿,非金属矿物主要为石榴子石、石英、透辉石以及蚀变形成的角闪石,并含有少量的碳酸盐矿物、斜长石、磷灰石、萤石以及蚀变形成的绿帘石;原矿钼物相分析表明,原矿中硫化钼占比为72.13%,氧化钼占比为27.87%,氧化钼的载体矿物主要为白钨矿,该部分钼将随钨的回收而回收,所以会影响钼精矿的回收率;矿石中铜的含量虽然较低(为0.016%),但有部分黄铜矿可浮性较好,会使钼精矿中铜含量超标,所以铜抑制剂的选择和流程结构的确定也是该矿石选矿回收关注的焦点。This is an essay in the field of process mineralogy.By means of chemical multi-element analysis,chemical phase analysis,optical microscope and automatic mineral parameter analysis system(MLA),the systematic research on process mineralogy of the molybdenum ore with high oxidation rate in Sandaozhuang mining area has been done in this study,which mainly include mineralogical factors affecting molybdenum recovery,such as ore chemical composition,mineral composition,occurrence state of molybdenum and tungsten and embedding characteristics of target minerals.The results show that the content of Mo in the ore is 0.06%,and the content of WO_(3) in the ore is 0.10%.The main metal minerals in the ore are pyrite,magnetite,molybdenite,scheelite and chalcopyrite.Nonmetallic minerals are mainly garnet,quartz,diopside and amphibole formed by alteration,and contain a small number of carbonate minerals,plagioclase,apatite,fluorite and epidote formed by alteration.The phase analysis of molybdenum in the raw ore shows that the proportion of molybdenum sulfide in the raw ore is 72.13%,and the proportion of molybdenum oxide is 27.87%.The carrier mineral of molybdenum oxide is mainly scheelite.This part of molybdenum will be recovered with the recovery of tungsten,so it will affect the recovery rate of molybdenum concentrate.Although the Cu content in the ore is low(0.016%),some chalcopyrite has good floatability,which will make the copper content in molybdenum concentrate exceed the standard.Therefore,the selection of copper inhibitors and the determination of process structure are also the focus of the beneficiation and recovery of the ore.

关 键 词：工艺矿物学 高氧化率 钼矿石 矿物组成 嵌布特征 

分 类 号：TD954[矿业工程—选矿] P575[天文地球—矿物学]