三道庄钼矿浮钼精扫选尾矿中铜的回收试验与工业实践

发布时间：2018-07-05 10:35

本文选题：浮钼精扫选尾矿 + 选钼工艺优化　；参考：《金属矿山》2017年12期

【摘要】：栾川三道庄钼矿含铜矿物主要为黄铜矿,铜含量为0.01%,由于铜天然可浮性较好,在选钼过程中随钼一起富集,钼精扫选尾矿含铜达0.5%左右,此部分铜不加以回收,会造成资源的浪费。为充分利用矿产资源,进行了铜回收工艺研究,并对按试验确定的流程建设的铜回收系统的工业试验和生产情况进行了介绍。结果表明:(1)钼精扫选尾矿经浓密后,采用1粗4精2扫、中矿顺序返回流程处理,在实验室获得了铜品位为23.10%、铜回收率为86.50%的铜精矿。(2)为期3个月的现场工业试验(规模为5 000 t/d)取得了铜精矿铜品位为21.22%、铜回收率为82.92%指标。(3)选矿厂钼精扫选尾矿选铜实现全部产业化后,每年可生产铜品位为20%以上的铜精矿4 200 t以上,铜回收率超过82%,年实现利润3 150万元。与此同时,由于选钼工艺的优化,钼精矿钼回收率提高了约2个百分点,经济效益和社会效益显著。
[Abstract]:The copper-bearing minerals of Sandaozhuang molybdenum mine in Luanchuan are mainly chalcopyrite with a copper content of 0.01. Due to the good natural floatability of copper, copper is enriched along with molybdenum in the process of molybdenum separation, and the copper content in the tailings of molybdenum fine cleaning is about 0.5%, and this part of copper is not recovered. Will cause waste of resources. In order to make full use of mineral resources, the copper recovery technology was studied, and the industrial test and production of copper recovery system built according to the process determined by experiment were introduced. The results show that: (1) after the tailings are thickened, the tailings are processed by 1 thick, 4 fine and 2 sweep, and the intermediate ore returns to the process in sequence. A copper concentrate with a copper grade of 23.10% and a copper recovery of 86.50% was obtained in the laboratory. (2) the copper grade of the concentrate was 21.22 and the copper recovery rate was 82.92% during a 3-month field industrial test (5 000 t / d). (3) Molybdenum fine cleaning tail was obtained in the concentrator. After realizing the full industrialization of copper ore separation, The copper concentrate with more than 20% copper grade can be produced every year. The copper recovery is more than 82 tons, and the annual profit is 31.5 million yuan. At the same time, due to the optimization of molybdenum concentration process, the recovery rate of molybdenum concentrate is increased by about 2 percentage points, and the economic and social benefits are remarkable.
【作者单位】：洛阳栾川钼业集团股份有限公司;
【分类号】：TD926.4;TD952

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