某铜矿通过对浮选工艺的技术改造：采取提高磨矿细度、增加二次精选及采用高效药剂等措施，使选矿技术指标得到了显著提高。
They adopted a few measures such as improving fineness of grinding ores, increasing secondary cleaning, using additional typed reagent and so on, thus making the technical indexes raised markedly.
铜冶炼的转炉渣是重要的二次金属资源，基本采用浮选法回收。
The converter slag from copper smelting is important secondary metal resources, which are mainly recovered by the flotation.
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