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by pfdietz
6 days ago
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The issue holding back steel recycling is contamination, most notably with copper. This forces recycled steel to be "downcycled" into lower value uses like rebar, or the recycled metal to be diluted with freshly reduced metal. A means to remove copper from molten steel is needed; there are some ideas for this being pursued. https://www.sciencedirect.com/science/article/abs/pii/S09213... |
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