伊春辉钼矿浮选工艺优化试验研究

发布时间：2018-05-04 11:16

  本文选题：辉钼矿 + 浮选　； 参考：《矿产综合利用》2017年06期

【摘要】：针对伊春低品位辉钼矿,采用浮选工艺获得高品位钼精矿。采用单因素试验方法,重点考察了药剂制度(p H值、混合抑制剂用量、捕收剂用量、起泡剂用量)及物理因素(磨矿粒度、温度、浮选转速、充气量、刮泡时间)对浮选指标的综合影响。单因素试验结果表明,当矿浆浓度为45%时,该辉钼矿浮选的最佳工艺条件为:温度20℃、p H值8.7,混合抑制剂用量600 g/t,捕收剂用量115 g/t,起泡剂用量60 g/t、磨矿粒度为-74μm占70.93%,浮选转速2000 r/min,充气量0.3 m3/h、刮泡时间8 min;此条件下经"一粗一扫"工艺,可获得钼品位2.81%、回收率为94.62%的粗钼精矿。基于此优化条件,采用"一粗六精一扫"的开路试验流程,可获得品位为45.68%、回收率为31.75%的钼精矿,而采用"一粗六精一扫、中矿顺序返回"的闭路试验流程,最终可获得品位为40.32%、回收率为93.28%的钼精矿。
[Abstract]:Aiming at Yichun low grade molybdenum concentrate, high grade molybdenum concentrate was obtained by flotation process. The single factor test method was used to investigate the pH value of the reagent system, the dosage of mixture depressant, the amount of collector, the amount of foaming agent) and the physical factors (grinding particle size, temperature, flotation speed, aeration volume). The comprehensive effect of blowing time on flotation index. The results of single factor test show that when the pulp concentration is 45, The optimum technological conditions of molybdenum floatation are as follows: temperature 20 鈩，

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