某微细粒难选含碳重晶石矿选矿技术研究  

Beneficiation Technology for Microfine Refractory Carbon⁃Containing Barite Ore

作　　者：张立刚[1] 缪亚兵 张茂[1] 李文风[1] ZHANG Ligang;MIAO Yabing;ZHANG Mao;LI Wenfeng(Changsha Research Institute of Mining and Metallurgy Co Ltd,Changsha 410012,Hunan,China)

机构地区：[1]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿冶工程》2023年第4期65-68,共4页Mining and Metallurgical Engineering

摘　　要：贵州某重晶石矿粒度分布不均匀,与脉石矿物嵌布关系复杂,属于典型微细粒难选矿石。在磨矿细度-0.075 mm粒级占90%条件下,采用煤油和2#油脱碳,再以碳酸钠为pH值调整剂、水玻璃为抑制剂、CY⁃30为捕收剂进行重晶石浮选,闭路试验获得了重晶石精矿产率75.92%、BaSO_(4)品位和回收率分别为93.55%和87.85%的选别指标。A barite ore from Guizhou province is a typical microfine refractory carbon⁃containing ore with uneven grain size distribution and complex dissemination relationship among barite and gangue minerals.After being milled to a grinding fineness of-0.075 mm 90%,the ore was processed using kerosene and terpenic oil for decarburization,with sodium carbonate as the pH regulator,sodium silicate as the depressant and CY⁃30 as the collector for barite flotation.A close⁃circuit flotation test yielded 75.92%barite concentrate grading 93.55% BaSO_(4) at 87.85%recovery.

关 键 词：微细粒 重晶石 浮选 脱碳 

分 类 号：TD923[矿业工程—选矿]