金属矿山
金屬礦山
금속광산
Metal Mine
2015年
10期
71-75
,共5页
钨矿石%磁选%浮选%化学浸出
鎢礦石%磁選%浮選%化學浸齣
오광석%자선%부선%화학침출
Tungsten ore%Magnetic separation%Flotation%Chemical leaching
辽宁某钨选厂矿石中WO3 的品位为0. 79%,在黑钨矿中的分布率为78. 48%. 现场采用单一重选工艺,仅能获得WO3 品位22% ~23%、回收率88% ~89%的重选精矿. 为提高精矿指标,对重选精矿进行了磁选—浮选—浸出试验. 结果表明:重选精矿在磁场强度为80 kA/m条件下磁选除铁,可获得WO3 品位为23. 54%的磁选精矿;磁选精矿以丁基黄药为捕收剂进行反浮选,获得WO3 品位为53. 08%的反浮选精矿;反浮选精矿以盐酸为浸出剂进行浸出除杂,可获得WO3 品位为65. 11%、作业回收率为96. 71%、对原矿回收率为82. 42%的精矿,实现了该钨矿资源的有效回收.
遼寧某鎢選廠礦石中WO3 的品位為0. 79%,在黑鎢礦中的分佈率為78. 48%. 現場採用單一重選工藝,僅能穫得WO3 品位22% ~23%、迴收率88% ~89%的重選精礦. 為提高精礦指標,對重選精礦進行瞭磁選—浮選—浸齣試驗. 結果錶明:重選精礦在磁場彊度為80 kA/m條件下磁選除鐵,可穫得WO3 品位為23. 54%的磁選精礦;磁選精礦以丁基黃藥為捕收劑進行反浮選,穫得WO3 品位為53. 08%的反浮選精礦;反浮選精礦以鹽痠為浸齣劑進行浸齣除雜,可穫得WO3 品位為65. 11%、作業迴收率為96. 71%、對原礦迴收率為82. 42%的精礦,實現瞭該鎢礦資源的有效迴收.
료녕모오선엄광석중WO3 적품위위0. 79%,재흑오광중적분포솔위78. 48%. 현장채용단일중선공예,부능획득WO3 품위22% ~23%、회수솔88% ~89%적중선정광. 위제고정광지표,대중선정광진행료자선—부선—침출시험. 결과표명:중선정광재자장강도위80 kA/m조건하자선제철,가획득WO3 품위위23. 54%적자선정광;자선정광이정기황약위포수제진행반부선,획득WO3 품위위53. 08%적반부선정광;반부선정광이염산위침출제진행침출제잡,가획득WO3 품위위65. 11%、작업회수솔위96. 71%、대원광회수솔위82. 42%적정광,실현료해오광자원적유효회수.
There is 0. 79% WO3 in a tungsten ore in Liaoning Province. Distribution rate of tungsten in wolframite is 78. 48%. Gravity separation operation was used by on-sits process,and gravity concentrate index with WO3 grade of only 22%~23% and recovery of 88% ~89% is obtained. To improving the concentrate index,magnetic separation-flotation-leaching ex-periments on the gravity concentrate was conducted. Results show that magnetic concentrate with WO3 grade of 23. 54% is ob-tained via magnetic separation for iron removal at field intensity of 80 kA/m on the gravity concentrate,reverse flotation con-centrate with WO3 grade of 53. 08% is gained through reverse flotation on the magnetic concentrate using butyl xanthate as col-lector,concentrate with WO3 grade of 65. 11%,yield recovery rate of 96. 71% and total recovery rate of 82. 42% is obtained by purification via leaching with hydrochloric acid as leaching agent. The effective recovery of the tungsten resource is ob-tained.
