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
王振兴 1郑永兴 1黄翔 2解晓晨1
作者信息
- 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;昆明理工大学 国土资源工程学院,昆明 650093
- 2. 广东粤桥新材料科技有限公司,广东茂名 525000
- 折叠
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.
Abstract
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+74 μm and-74 μm products.The+74 μm fraction was processed using a procedure involving grinding,spiral chute roughing,and shaking table refining.For the-74 μm 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％.-74 μm 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Key words
antimony oxide ore/re-selection/shaking table/spiral chute/suspended vibration cone concentrator/fine grain beneficiation引用本文复制引用
基金项目
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)
出版年
2024
NETL
NSTL
万方数据