摘要
以陕西石煤钒矿为原料,借助化学元素分析、X射线衍射分析(XRD)和矿物参数自动定量分析系统(MLA),对原矿的元素组成、矿物组成、钒的赋存状态和含钒矿物的嵌布关系及解离特性进行了系统研究.在此基础上,开展了原矿螺旋溜槽抛尾试验、浮选抛尾试验和重选—浮选联合抛尾试验.结果表明:在原矿V2O5质量分数0.82%的条件下,采用重选—浮选联合抛尾工艺,可以获得预选精矿V2O5质量分数1.23%、抛尾产率41.97%、钒回收率87.37%的选别指标.该研究为我国石煤钒矿的高效开发利用提供了参考.
Shaanxi vanadium-bearing stone coal was selected as the research object.The raw ore was characterized by chemical element analysis,X-ray diffraction(XRD),and an automatic quantitative analysis system(MLA)of mineral parameters.Systematic investigation into its elemental composition,mineral composition,occurrence state of vanadium,embedding relationship,and dissociation characteristics of vanadium-bearing minerals was conducted.On this basis,the spiral chute tailings discarding tests,flotation tailings discarding tests,and combined gravity-flotation tailings discarding tests of raw ores were carried out.When the mass fraction of V2O5 in the raw ore was 0.82%,combined gravity-flotation tailings discarding tests could obtain the pre-concentrate with a V2O5 mass fraction of 1.23%,a tailing yield of 41.97%,and a vanadium recovery rate of 87.37%.The study provides a reference for the efficient development and utilization of vanadium-bearing stone coal in China.
作者
杨帅厚
靳建平
祝昕冉
周振亚
YANG Shuai-hou;JIN Jian-ping;ZHU Xin-ran;ZHOU Zhen-ya(School of Resources&Civil Engineering,Northeastern University,Shenyang 110819,China)
出处
《东北大学学报(自然科学版)》
北大核心
2025年第9期135-142,共8页
Journal of Northeastern University(Natural Science)
基金
国家重点研发计划项目(2020YFC1909704)
中央高校基本科研业务费专项资金资助项目(N2301017).
关键词
石煤钒矿
工艺矿物学
预富集抛尾
螺旋溜槽
浮选
vanadium-bearing stone coal
process mineralogy
pre-enrichment tailing discarding
spiral chute
flotation
