剛果(金)SICOMINES高氧化率銅鈷礦浮選尾礦再選試驗研究
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華剛礦業(yè)股份有限公司

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中圖分類(lèi)號:

TD952

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基金一:國家重點(diǎn)研發(fā)計劃項目(2022YFC2904503),復雜硫氧混合銅鈷資源高通量梯級高效回收關(guān)鍵技術(shù)、裝備與示范;基金二:國家重點(diǎn)研發(fā)計劃項目(2022YFC2904505),銅鈷/鉬錸精礦冶煉分離提取關(guān)鍵技術(shù)虱连、裝備與示范摔椒。


Experimental study on flotation tailings re-separation of high oxidation rate copper-cobalt ore of SICOMINES in the Democratic Republic of the Congo
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Huagang Mining Co. Ltd.

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    摘要:

    由于剛果(金) SICOMINES高氧化率銅鈷礦中含有部分較難選的含銅礦物镰轿,導致選別指標較差。為回收其浮選尾礦中的含銅礦物,通過(guò)對浮選尾礦進(jìn)行礦石性質(zhì)分析,針對其礦石性質(zhì)特點(diǎn),對浮選尾礦進(jìn)行重選、磁選、浮選以及多種選別方式聯(lián)合的再選試驗研究,最終確定浮選尾礦采用一粗一掃強磁選,磁選精礦進(jìn)行一粗一掃浮選,磁選精礦的浮選尾礦再進(jìn)行一段強磁選的選別工藝,有效地回收浮選尾礦中的難選含銅礦物。相比原浮選工藝流程,增加浮選尾礦再選工藝,總銅和總鈷回收率達到84.74%和56.88%,增加了8.95和8.28個(gè)百分點(diǎn)。同時(shí),對浮選尾礦再磁選的磁選精礦再選別,大大降低磁選精礦的浸出酸耗。

    Abstract:

    Due to the high oxidation rate of copper-cobalt ore in SICOMINES in the Democratic Republic of the Congo (DRC), there are some copper-bearing minerals that are difficult to select, resulting in poor separation indicators. In order to recover the useful copper-containing minerals in the flotation tailings, through the analysis of the ore properties of the flotation tailings, according to the characteristics of the ore properties, the flotation tailings were subjected to gravity separation, magnetic separation, flotation and a combination of various separation methods of re-separation experimental research, and finally determined that the flotation tailings adopts a coarse and a sweep strong magnetic separation, the magnetic separation concentrate is flotated with a coarse sweep, and the flotation tailings of the magnetic separation concentrate are separated by a section of strong magnetic separation, so as to effectively recover the refractory copper-containing minerals in the flotation tailings. Compared with the original flotation process, the recovery rates of total copper and total cobalt reached 84.74% and 56.88%, an increase of 8.95 and 8.28 percentage points. At the same time, the magnetic separation concentrate of flotation tailings and magnetic separation is re-separated, which greatly reduces the leaching acid consumption of magnetic separation concentrate.

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  • 收稿日期:2024-04-09
  • 最后修改日期:2024-06-03
  • 錄用日期:2024-06-18
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