發(fā)布時間：2018-05-19 07:01

  本文選題：磁選 + 鐵礦　； 參考：《武漢科技大學(xué)》2015年碩士論文

【摘要】：目前巴潤礦業(yè)公司主要是選鐵，而原礦中的稀土元素隨著尾礦進(jìn)入尾礦壩，資源沒有得到充分利用。因此在選鐵的基礎(chǔ)上探索回收稀土，提高資源的綜合利用率是非常有意義的。 本論文對巴潤礦業(yè)提供的礦樣進(jìn)行了鐵和稀土的綜合回收利用研究，取得了良好的試驗效果。試驗結(jié)果表明： （1）比較原礦直接磨礦磁選工藝與原礦階段磨礦磁選工藝結(jié)果顯示，兩種工藝所得精礦指標(biāo)相差不大，但單從選鐵的角度考慮，采用階段磨礦階段選別工藝，可以在細(xì)磨前拋出大部分品位較低的尾礦，因此推薦采用階段磨礦-弱磁選工藝。 （2）兼顧稀土的綜合回收，采用階段磨礦-弱磁選工藝回收鐵，可得到鐵精礦產(chǎn)率為10.92%、品位為66.41%、回收率為50.93%；磁選尾礦采用一次粗選-一次掃選-五次精選工藝回收稀土，可獲得稀土精礦品位為30.10%、回收率為45.88%的良好指標(biāo)，使鐵和稀土都得到了回收利用。 （3）氟碳鈰礦浮選行為研究表明：在pH值為9.00時，捕收劑BR對氟碳鈰礦捕收行為最強(qiáng)；根據(jù)礦漿中Ce3+浮選溶液化學(xué)計算分析，結(jié)果表明是Ce(OH)2+和Ce(OH)2+絡(luò)合離子吸附于氟碳鈰礦表面，從而影響氟碳鈰礦的可浮性；通過藥劑作用前后顆粒表面ζ-電位以及紅外光譜的比較，，可知此BR捕收劑與氟碳鈰礦發(fā)生了化學(xué)吸附。
[Abstract]:At present, Balun Mining Company mainly selects iron, but the rare earth elements in the raw ore enter tailings dam with the tailings, so the resources are not fully utilized. Therefore, it is very meaningful to explore the recovery of rare earth on the basis of iron concentration and to improve the comprehensive utilization ratio of resources. In this paper, the comprehensive recovery and utilization of iron and rare earth from ore samples provided by Balun Mining are studied, and good experimental results are obtained. The results show that: 1) comparing the direct grinding magnetic separation process of raw ore with the grinding magnetic separation process of raw ore stage, the results show that there is no difference in the concentrate index between the two processes, but considering only from the angle of iron dressing, the stage grinding stage separation process is adopted. Most of the tailings with lower grade can be thrown out before fine grinding, so the stage grinding and weak magnetic separation process is recommended. (2) taking into account the comprehensive recovery of rare earths and the recovery of iron by stage grinding and weak magnetic separation, the yield of iron concentrate is 10.92, the grade is 66.41 and the recovery rate is 50.93.The tailings of magnetic separation use one coarse separation, one sweep separation and five cleaning processes to recover rare earths. A good index of recovery rate of 45.88% and grade of 30. 10% of rare earth concentrate can be obtained. Both iron and rare earth have been recovered and utilized. The flotation behavior of fluorocarbon and cerium ore is studied. The results show that the collector Br has the strongest collecting behavior for fluorocarbon and cerium ore at pH 9.0.According to the chemical calculation and analysis of Ce3 flotation solution in pulp, the results show that the complex ions of Ce(OH)2 and Ce(OH)2 adsorb on the surface of fluorocarbon and cerium ore. Therefore, the floatability of fluorocarbon-cerium ore is affected, and the chemisorption of Br collector with fluorocarbon-cerium ore is obtained by comparing the Zeta potential and IR spectra before and after the action of the reagent.
【學(xué)位授予單位】：武漢科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD951

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本文編號：1909159