剛果(金)高氧化率銅鈷礦浮-磁聯合工藝試驗研究
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1.華剛礦業股份有限公司;2.中鋼集團馬鞍山礦山研究總院股份有限公司

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2022YFC2904501;2022YFC2904502


Experimental study on flotation -magnetic combined technology of high oxidation rate a copper-cobalt mine in Congo(DRC)
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SICOMINES SARL

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    摘要:

    剛果(金)銅鈷礦石含Cu 2.47%、含Co 0.237%,屬于高氧化率、礦物組成復雜礦石。針對單一浮選選礦成本高且回收率低等問題,根據礦石性質采用浮選-磁選聯合工藝進行選礦試驗,結果表明,在磨礦粒度-0.074mm占比70%的情況下,通過逐步硫化浮選可選出易浮硫化銅精礦、氧化銅精礦和鈷精礦,浮選尾礦通過強磁選再回收其中的銅鈷礦物,最終獲得綜合銅回收率為79.83%、鈷回收率為54.79%,銅鈷回收率大幅提高,實現了資源綜合高效利用。

    Abstract:

    A copper-cobalt ore in Congo contains 2.47% Cu and 0.237% Co, which belongs to the ore with high oxidation rate and complex mineral composition. Aiming at the problems of high cost and low recovery rate of single flotation, flotation and magnetic separation combined process was used to carry out beneficiation tests according to ore properties. The results showed that easily beneficiated copper sulfide concentrate, copper oxide concentrate and cobalt concentrate could be selected by stepwise vulcanization flotation under the condition that the grinding particle size accounted for 70% of -0.074mm. The copper and cobalt minerals in the flotation tailings were recovered by strong magnetic separation, and the comprehensive copper recovery rate was 79.83% and cobalt recovery rate was 54.79%. The recovery rate of copper and cobalt was greatly improved, and the comprehensive and efficient utilization of resources was realized.

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  • 收稿日期:2024-05-06
  • 最后修改日期:2024-06-24
  • 錄用日期:2024-06-26
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