A new selective precipitate copper slag treating process was provided, which could utilize metal resources more comprehensively and effectively. Microstructure of slag was observed by metallographic microscope and SEM. Phases composition ascertained by EDX and XRD. Grain size and crystallizing quantity of magnetite (Fe<,3>O<,4>) were determined by Quantimet 520 imagine analyzer. The results show that average grain size of magnetite particle is grown from 25μm to 95μm and the element iron is enriched into magnetite phase from 22% to 86 % during cooling process with cool rate 5K/min after the oxidizing.
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机译：提供了一种新的选择性沉淀铜矿处理过程，可以更全面地利用金属资源。通过金相显微镜和SEM观察炉渣的微观结构。通过EDX和XRD确定的阶段组成。通过定数偏压520〜2520想象的分析仪测定晶粒尺寸和结晶量（Fe <，3> O <，4>）。结果表明，磁铁矿颗粒的平均晶粒尺寸从25μm到95μm生长，元素铁在冷却过程中富含22％至86％的磁铁矿相，在氧化后的冷却速率5k / min。
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