难选氧化锑矿工艺矿物学及选矿回收  

Process mineralogy and beneficiation recovery of a refractory antimony oxide ore

作　　者：王振兴 郑永兴 黄翔[3] 解晓晨 WANG Zhenxing;ZHENG Yongxing;HUANG Xiang;XIE Xiaochen(State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming 650093,China;Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China;Guangdong Yueqiao New Material Technology Co.Ltd.,Maoming 525000,Guangdong,China)

机构地区：[1]省部共建复杂有色金属资源清洁利用国家重点实验室,昆明650093 [2]昆明理工大学国土资源工程学院,昆明650093 [3]广东粤桥新材料科技有限公司,广东茂名525000

出　　处：《矿冶》2024年第3期383-390,共8页Mining And Metallurgy

基　　金：云南省高层次人才引进计划项目(KKS2202152011);茂名市2021年省科技创新战略“大专项十任务清单”专项(2021S0005)。

摘　　要：采用X射线荧光光谱分析、化学多元素分析、X射线衍射分析、电子探针分析对某氧化锑矿进行工艺矿物学研究,结果表明原矿中锑的含量仅为1.21%,含锑矿物为锑华、辉锑矿,脉石矿物为石英,并且原矿性脆、易泥化,属低品位难选氧化锑矿。在工艺矿物学研究结果的基础上开展对该矿的回收探索试验。采用分级—重选法对矿石进行选别,首先将原矿分级后获得+74μm和-74μm两种产品;对+74μm粒级产品采用磨矿—螺旋溜槽粗选—摇床精选的分选工艺流程进行处理,其中用螺旋溜槽选别-74μm占比为28.03%的原矿,获得的螺旋溜槽粗精矿中Sb品位2.01%、Sb作业回收率28.49%,在此基础上用摇床对螺旋溜槽粗精矿进行精选获得Sb品位6.03%、Sb作业回收率56.90%的摇床精矿;对-74μm粒级产品用悬振锥面选矿机进行选别,获得Sb品位4.87%、Sb作业回收率26.12%的锑精矿。在合适的磨矿细度下,通过多级重选以及多种重选设备的组合,可有效回收该氧化锑矿中的含锑矿物。研究结果可为该难选氧化锑矿的综合回收提供参考。A process mineralogy study was conducted on a certain antimony oxide ore using X-ray fluorescence spectroscopy analysis,chemical multi-element analysis,X-ray diffraction analysis,and electron probe analysis.The results showed that the antimony content in the raw ore was only 1.21%.The antimony containing minerals were antimony hua and antimonite,and the gangue minerals were aluminium silicate minerals such as quartz,fluorite,and mica.The raw ore was brittle and prone to mud formation,making it a low-grade refractory antimony oxide ore.Recovery exploration experiments were conducted on this ore based on the research results of the mineralogy process.The ore was separated using a classification-gravity separation method.Initially,the ore was first classified into+74μm and-74μm products.The+74μm fraction was processed using a procedure involving grinding,spiral chute roughing,and shaking table refining.For the-74μm fraction,accounting for 28.03%of the raw ore,the spiral chute rough concentrate had an Sb grade of 2.01%and an Sb operation recovery rate of 28.49%.Based on this,a shaking table was used to select the spiral chute rough concentrate and obtain a shaking table concentrate with an Sb grade of 6.03%and an Sb operation recovery rate of 56.90%.-74μm grade products were sorted using a suspended vibration cone concentrator to obtain antimony concentrate with an Sb grade of 4.87%and an Sb recovery rate of 26.12%.Under appropriate grinding fineness,the antimony containing minerals in the oxidized antimony ore can be effectively recovered through multi-stage re-selection and a combination of multiple re-selection equipment.The research results can provide a reference for the comprehensive recovery of the refractory antimony oxide ore.

关 键 词：氧化锑矿 重选 摇床 螺旋溜槽 悬振锥面选矿机 细粒选矿 

分 类 号：TD922[矿业工程—选矿] TD952