湖南某铍矿综合回收实验  

Multipurpose Recovery Test of Beryllium Ores in Hunan Province

作　　者：邵伟华[1] 常学勇[1] 王守敬[1] 彭团儿[1] SHAO Weihua;CHANG Xueyong;WANG Shoujing;PENG Tuaner(Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,CAGS,China National Engineering Research Center for Utilization of Industrial Minerals,Key Laboratory for Polymetallic Ores'Evaluation and Utilization,MNR,Engineering Technology Innovation Center for Development and Utilization of High Purity Quartz,Ministry of Natural Resources,Zhengzhou 450006,Henan,China)

机构地区：[1]中国地质科学院郑州矿产综合利用研究所,国家非金属矿资源综合利用工程技术研究中心,自然资源部多金属矿综合利用评价重点实验室,自然资源部高纯石英开发利用工程技术创新中心,河南郑州450006

出　　处：《矿产综合利用》2024年第5期31-37,56,共8页Multipurpose Utilization of Mineral Resources

基　　金：中国地质调查局地质调查项目(DD20221698);河南省重点研发专项(221111320300)。

摘　　要：这是一篇矿物加工工程领域的论文。针对湖南某铍矿含BeO 0.47%、CaF_(2)44.86%,含铍矿物为金绿宝石,主要脉石矿物为绿泥石、云母、方解石、白云石等,铍矿物嵌布粒度较细,与绿泥石、方解石等脉石矿物共生密切,分选难度较大。基于金绿宝石与萤石以及与主要脉石矿物的可浮性差异,实验采用原矿浮选脱除硫化矿后—优先浮选萤石—浮选尾矿脱泥后反浮选脉石矿物的工艺流程处理该矿。在磨矿细度为-0.074 mm80%的条件下,采用组合捕收剂丁基黄药+丁铵黑药+乙硫氮浮选脱除硫化矿,然后利用组合捕收剂油酸钠+氧化石蜡皂浮选萤石得到含CaF_(2)96.32%、回收率为70.34%的萤石精矿,浮选尾矿脱泥后反浮选脉石矿物,可获得含BeO 1.57%、回收率为67.95%的铍精矿。铍精矿后续可采用冶金方法提取获得氧化铍产品。该工艺实现了对金绿宝石型铍矿和萤石矿物的综合回收,为同类型铍矿的开发利用提供参考。This is an article in the field of mineral processing engineering.The beryllium ore in Hunan Province contains 0.47%BeO and 44.86%CaF_(2).The beryllium ore is chrysoberyl.The main gangue minerals are chlorite,mica,calcite,dolomite,etc.The disseminated particle size of beryllium ores is relatively fine,closely associated with chlorite,calcite,etc.So it is difficult to beneficiate.The beneficiation process flow is adopted by flotation of the sulphide ore first,then preferential flotation of fluorite,and the last reverse flotation of gangue minerals after flotation tailings deslimed.At the condition of the grinding fineness-0.074 mm accounted for 80%,the combined collectors of butylxanthate+ammonium dibutyldithiophosphate+sodium diethyldithiocarbamate for flotation were used to remove sulfide ores.Then fluorite concentrate with CaF_(2) grade of 96.32%and recovery rate of 70.34%were obtained by flotation of fluorite with the combined collectors oxidized paraffinum sodium salt+sodium oleate.After the flotation tailings are deslimed,reverse flotation of gangue minerals is adopted and the beryllium concentrate with BeO grade of 1.57%and recovery rate of 67.95%is obtained.The subsequent beryllium concentrate can be extracted by metallurgical method to obtain beryllium oxide products.This process realizes the multipurpose recovery of beryllium ores of chrysoberyl type and fluorite ores,and provides a reference for the development and utilization of the same type of beryllium ores.

关 键 词：矿物加工工程 金绿宝石 萤石 浮选 反浮选 脱泥 

分 类 号：TD954[矿业工程—选矿]