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自五十年代建矿以来,华铜矿堆积了十几万吨氧化铜矿石。当时受技术经济条件的限制,只是单一处理硫化铜矿石,氧化铜矿石的生产指标极低,没有利用。在矿源枯竭的情况下,提出了综合回收,利用氧化铜矿的试验课题。经过反复试验,确定了硫化一黄药浮选方案,并选择了较佳的作业条件。试验矿样铜、金,铁品位分别为0.47％、1.5克/吨、24.97％。推荐的生产指标为:铜精矿品位5.5％,回收率40％;含金30克/吨,回收率65％;铁精矿品位65％,铁回收率77％。
Since its establishment in the 1950s, Huacuo has accumulated more than 100,000 tons of copper oxide ore. At the time by the technical and economic conditions, only a single treatment of copper sulfide ore, copper oxide production indicators of very low, no use. In the case of depletion of mineral resources, a comprehensive experimental project on the recovery and utilization of copper oxide was proposed. After repeated tests to determine the curing of a yellow drug flotation program, and select the preferred operating conditions. Test samples of copper, gold and iron grade were 0.47%, 1.5 g / t, 24.97%. Recommended production indicators: copper concentrate grade 5.5%, the recovery rate of 40%; gold 30 g / ton, the recovery rate of 65%; iron concentrate grade 65%, iron recovery rate of 77%.