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The advantages of recycling metallic zinc from the ... - Pyrotek

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Conclusions<br />

• Rising primary <strong>zinc</strong> prices have reached historic levels and are greatly impacting <strong>the</strong> raw<br />

material costs <strong>of</strong> <strong>zinc</strong> consuming industries such as galvanizing, die casting and brass<br />

manufacturing.<br />

• <strong>The</strong> quantity <strong>of</strong> <strong>metallic</strong> <strong>zinc</strong> contained within <strong>the</strong> waste materials <strong>of</strong> <strong>the</strong>se <strong>zinc</strong> processing<br />

facilities is extremely high, especially for producers <strong>of</strong> galvanized steel products.<br />

• <strong>The</strong> <strong>metallic</strong> <strong>zinc</strong> content <strong>of</strong> <strong>the</strong> waste drosses which are discarded <strong>from</strong> a molten <strong>zinc</strong> pot in a<br />

galvanizing operation may exceed 90%.<br />

• Unlike die casting and brass manufacturing, currently only a minimal volume <strong>of</strong> recycled <strong>zinc</strong><br />

is directly returned to an industrial galvanizing pot.<br />

• Implementation <strong>of</strong> defined in-house procedures by galvanizing operations could help extract<br />

higher fractions <strong>of</strong> valuable <strong>zinc</strong> <strong>from</strong> <strong>the</strong>ir process wastes.<br />

• Utilization <strong>of</strong> a Metaullics MZR Zinc Recovery System may enhance retention <strong>of</strong> <strong>zinc</strong><br />

inventories by providing an on-site secondary processing technique for recovery <strong>of</strong> usable<br />

<strong>metallic</strong> <strong>zinc</strong>.

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