銅冶煉急冷渣、緩冷渣銅可選性試驗(yàn)研究
[Abstract]:The selectability test of copper smelting slag with different cooling methods was carried out. The results showed that the quench slag had not formed relatively concentrated independent phase crystal and formed superfine mixed minerals with iron and silicon because of the rapid cooling rate, and the results showed that the cooling rate of the slag was too fast to form an ultra-fine mixed mineral with iron and silicon before the formation of a relatively concentrated independent phase-forming crystal. Reduces the floatability of copper minerals, although ground very finely, is still not effectively recovered. In the slow cooling process, the primary precipitated microcrystals of slag melts can grow through dissolution and precipitation to form well-crystallized self-shaped or semi-self-shaped crystals, and the precipitated copper mineral particles will increase by means of diffusion and condensation. The floatability is good, and it is easy to separate the monomer, which is helpful to the flotation recovery of copper minerals. The grade of copper concentrate was 55.10% and the recovery rate was 97.27% in a small copper smelter, and the grade of copper concentrate was 44.68% and the recovery rate was 92.95% in a large copper smelter. The test results show that the slow cooling slag can obtain better separation index.
【作者單位】: 玉溪礦業(yè)有限公司;玉溪晨興礦冶科技開發(fā)有限公司;
【分類號】:TD952
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