Phase Relations and Distribution of Some Minor Elements in Cu-Fe-As System Saturated with Carbon at 1473 K
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- Voisin Leandro
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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- Henao Hector M.
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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- Itagaki Kimio
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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As a fundamental study to develop a new process for eliminating detrimental elements and for recovering valuable ones from secondary Cu-Fe base alloys with a considerably high content of arsenic, both the phase relations in a miscibility gap of the Cu-Fe-As system saturated with carbon and the distribution of some minor elements of silver, platinum, cobalt, nickel and sulfur between two phases in the miscibility gap were investigated at 1473 K by using a quenching method. The phase separation into copper-rich and iron-rich phases occurred when the Cu-Fe-As system was saturated with carbon. The arsenic content in the copper-rich phase was larger than that in the iron-rich phase, and carbon mostly distributed in the iron-rich phase. Cobalt and nickel distributed preferentially in the iron-rich phase, and platinum and sulfur distributed almost evenly in both phases, while silver mostly in the copper-rich phase. The experimental results for the phase separation and the distribution of the minor elements were discussed on the basis of activity coefficients in the copper-rich and iron-rich phases. By utilizing this phase separation, recovery of valuable silver and copper into the copper-rich phase and elimination of less valuable iron into the iron-rich phase are feasible for treating the secondary Cu-Fe-As base alloys.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 45 (9), 2851-2856, 2004
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282679225769344
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- NII論文ID
- 130004452581
- 10013579857
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- NII書誌ID
- AA1151294X
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- COI
- 1:CAS:528:DC%2BD2cXpvV2gsL4%3D
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 7088004
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可