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Separation and recovery method of copper and iron from copper iron mixed scrap

机译：从铜铁混合废料中分离铜和铁的方法

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摘要

PPROBLEM TO BE SOLVED: To provide a method with which copper can be reused as a melting raw material by easily and efficiently separating and recovering the copper and the iron from scrap mixed with the copper and the iron through melting process and further, a little amount of noble metal used for various kinds of products treated as the scrap together with the copper can be separated and recovered. PSOLUTION: In this method, when the scrap mixed with the copper and the iron is melted in non-oxygen atmosphere, Fe-P-Cu ternary system molten material is formed and also, sufficient amount of the phosphorus (P) for separating molten iron phase and molten copper phase, is added before melting and/or during melting. Further, melting temperature is lowered by adding carbon (C) and also, the solubility of the copper in the molten iron phase and the solubility of the iron in the molten copper phase can be reduced. PCOPYRIGHT: (C)2004,JPO

机译：

要解决的问题：提供一种方法，该方法可以通过在熔融过程中从与铜和铁混合的废料中轻松有效地分离和回收铜和铁，从而将铜作为熔融原料再利用，可以分离和回收少量的用于各种产品的贵金属，这些产品作为废料与铜一起被回收。

解决方案：在这种方法中，当将混有铜和铁的废料在无氧气氛中熔化时，会形成Fe-P-Cu三元系熔融材料，并且还会有足够的磷（P）在熔融之前和/或熔融期间添加分离铁水相和熔融铜相的溶液。此外，通过添加碳（C）降低熔融温度，并且还可以降低铜在熔融铁相中的溶解度和铁在熔融铜相中的溶解度。

版权：（C）2004，日本特许厅展开▼

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公开/公告号JP3730606B2

专利类型
公开/公告日2006-01-05

原文格式PDF
申请/专利权人独立行政法人科学技術振興機構;
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申请/专利号JP20020244446
发明设计人山口勉功;武田要一;
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申请日2002-08-26
分类号C22B7;C21B11;C22B9/02;C22B11/02;C22B15;
国家 JP
入库时间 2022-08-21 21:48:47

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