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Upgrading the Copper Value in a Waste Copper Smelter Dust with the Falcon Gravity Concentrator

机译：用猎鹰重力集中器升级废铜冶炼厂灰尘中的铜价

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The physical, chemical, mineralogical and morphological characteristic of the waste copper smelter dust (CSD) from Palabora Copper (PTY), Limpopo, South Africa, has been reported in the open literature. The bulk of this material falls within the -53 μm particle size fraction with a copper weight percent of 18.02 as determined with the XRF. The high presence of reactive gangue minerals such as mullite (42.97 wt%) and quartz (11.45 wt%) necessitates that the waste CSD be first upgraded of its copper value in the falcon gravity concentrator before subsequent hydrometallurgical treatment. As an initial step, a sample preparation was carried out to make the sample amenable to both real density determination and copper upgrade experiment, thus resulting in 97% of the particles passing the 300 μm sieve aperture (d_(97) = 300). The laser particle size analyzer (LPSA) was used to analyze the d_(97) = 300 and the results showed a %change from 90.82% to 95.59%, with a real density of 2.830 for the waste CSD. The result of the copper upgrade showed that test 8 with treatment combination of 80 rpm and 4.5 l/min gave the highest % copper grade of 1.37 which is still less than the %grade of copper in the feed (1.49%). It thus lead to the recommendation that another type of centrifugal separator that will allow the introduction of the feed as slurry so that the pulp density and feed rate can factored into the whole upgrade experiment, consequently reducing the significant amount of losses and the chances of an improved grade and recovery of copper from this waste CSD.
机译：在公开文学中报道了来自Palabora铜（PTY），南非的垃圾涂料尘埃（CSD）的物理，化学，矿物学和形态学特征，南非的公开文学报告。用XRF测定，该材料的大部分含量在-53μm粒度馏分内占18.02的铜重量％。反应性甘黄矿物如莫来石（42.97wt％）和石英（11.45wt％）的高存在需要在随后的液压冶金治疗之前首先在Falcon重力浓缩器中首先升级其铜值。作为初始步骤，进行样品制备以使样品适用于实际密度测定和铜升级实验，从而导致97％的颗粒通过300μm筛孔（D_（97）= 300）。激光粒子尺寸分析仪（LPSA）用于分析D_（97）= 300，结果表明，余量CSD的实际密度为2.830，结果显示为％的50.82％至95.59％。铜升级的结果表明，试验8具有80rpm和4.5升/分的治疗组合，得到了1.37的最高％铜级，其仍小于饲料中铜的％级（1.49％）。因此，它导致了另一种类型的离心分离器，可以允许将饲料引入作为浆料，使纸浆密度和进料速率可以考虑到整个升级实验中，因此降低了大量损失和机会从该废物CSD改善级别和铜的恢复。

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