摘要
陕西某钨矿属于钨铋多金属矿,该矿中白钨矿与脉石矿物连生关系密切,含铋矿物氧化率较高,且辉铋矿等含铋矿物多沿白钨矿裂隙充填分布,白钨矿与辉铋矿均性脆易泥化,导致钨铋难以分离回收。研究确定采用分级—跳汰抛尾—摇床精选—粗精再磨—钨铋分离的工艺流程回收钨、铋。在给矿钨、铋品位分别为1.39%、0.096%时,可获得品位为66.79%、回收率为90.81%的Ⅰ级白钨精矿和品位为21.97%、回收率为68.91%的Ⅴ级铋精矿。通过试验该钨铋多金属矿获得了较理想的选矿指标。该研究对类似矿石的选别具有一定的参考意义。
Tungsten and bismuth in a bismuth-containing Scheelite in Shaanxi are difficult to be separated and recovered due to the following reasons： the close association of Scheelite and gangue minerals, high oxidation rate of bismuth-containing minerals, brittle characteristics of scheelite and gypsum ore. A process of grading - jigging tail - shaker selection - coarse fine grinding - tungsten bismuth separation was applied to recover tungsten and bismuth. When the grade of tungsten and bismuth feeds are 1.39 % and 0.096 % respectively, scheelite concentrate （grade I） with the grade of 66.79 % and bismuth concentrate （grade Y） with the grade of 21.97 % were obtained, with the recovering rates reaching 90.81 % and 68.91 %. The study has some reference significance for the selection of similar ores
出处
《中国钨业》
CAS
北大核心
2017年第3期31-35,共5页
China Tungsten Industry
基金
陕西省教育厅基金项目(16JK1467)
关键词
钨铋多金属矿
跳汰抛尾
重选-浮选联合工艺
钨铋分离
tungsten bismuth polymetallic ore
jigging tail
gravity - flotation joint process
tungsten bismuth separation
