发明名称 Method for recycling brass foundry waste
摘要 A recycling process for zinc-rich solid waste containing zinc oxide, Cu oxides and impurities normally present in brass, in which a mixture is formed containing the waste with a finely divided solid reducing agent and a binder, and the mixture is compacted as agglomerates with open pores. The agglomerates are added into a treatment reactor containing a bath of liquid copper or brass metal, in which the zinc and copper oxides are reduced, to obtain in the treatment reactor after the reduction, a new brass in liquid form and a new waste. The new liquid brass is transferred into a fusion and casting furnace, in which its composition is optionally adjusted, and the new liquid brass is cast to form a product. Any waste present in the treatment reactor and the casting furnace are recycled using this process.
申请公布号 US6293993(B1) 申请公布日期 2001.09.25
申请号 US19990402483 申请日期 1999.12.08
申请人 TREFIMETAUX 发明人 WELTER JEAN-MARIE;REVET FLORENCE
分类号 C22B1/242;C22B1/245;C22B1/26;C22B7/00;C22B7/02;C22B7/04;C22B15/00;C22B19/30;(IPC1-7):C22B1/14 主分类号 C22B1/242
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