The oxidation rate of Pb and Ni in the copper by slag

Kunihiko Nakashima, Keisuke Yamamoto, Etsurou Shibata, Hiroko Tahori, Katsumi Mori

研究成果: 著書/レポートタイプへの貢献会議での発言

1 引用 (Scopus)

抄録

The kinetic experiments were carried out at 1200°C to develop some effective slags for removing Pb and Ni from liquid copper, and the effects of slag composition on the extent and on the rate of the removal were examined. It was found that the slag viscosity and the activity coefficient of PbO were lowered by the addition of B2O3. For slags containing B2O3, the reaction almost finished within 5 minutes after adding slag and the degree of removal was more than 90%. But the removal degree of Ni was not so high compared with that of Pb. Thus, Ni removal by oxidation was more difficult than Pb removal. For example, the removal degrees of more than 90% for Pb and of about 50% for Ni were obtained Cu2O-B2O3-Fe2 O3 slag. The change in metal composition during oxidation reaction could be explained by the couple reaction model.

元の言語英語
ホスト出版物のタイトルProceedings of the Second International Conference on Processing Materials for Properties
編集者B. Mishra, C, Yamauchi, B. Mishra, C. Yamauchi
ページ839-844
ページ数6
出版物ステータス出版済み - 2000
イベントProceedings of the Second International Conference on Processing Materials for Properties - San Francisco, CA, 米国
継続期間: 11 5 200011 8 2000

その他

その他Proceedings of the Second International Conference on Processing Materials for Properties
米国
San Francisco, CA
期間11/5/0011/8/00

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Slags
Copper
Oxidation
Activity coefficients
Chemical analysis
Viscosity
Kinetics
Liquids
Metals
Experiments

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Nakashima, K., Yamamoto, K., Shibata, E., Tahori, H., & Mori, K. (2000). The oxidation rate of Pb and Ni in the copper by slag. : B. Mishra, C. Yamauchi, B. Mishra, & C. Yamauchi (版), Proceedings of the Second International Conference on Processing Materials for Properties (pp. 839-844)

The oxidation rate of Pb and Ni in the copper by slag. / Nakashima, Kunihiko; Yamamoto, Keisuke; Shibata, Etsurou; Tahori, Hiroko; Mori, Katsumi.

Proceedings of the Second International Conference on Processing Materials for Properties. 版 / B. Mishra; C, Yamauchi; B. Mishra; C. Yamauchi. 2000. p. 839-844.

研究成果: 著書/レポートタイプへの貢献会議での発言

Nakashima, K, Yamamoto, K, Shibata, E, Tahori, H & Mori, K 2000, The oxidation rate of Pb and Ni in the copper by slag. : B Mishra, C Yamauchi, B Mishra & C Yamauchi (版), Proceedings of the Second International Conference on Processing Materials for Properties. pp. 839-844, Proceedings of the Second International Conference on Processing Materials for Properties, San Francisco, CA, 米国, 11/5/00.
Nakashima K, Yamamoto K, Shibata E, Tahori H, Mori K. The oxidation rate of Pb and Ni in the copper by slag. : Mishra B, Yamauchi C, Mishra B, Yamauchi C, 編集者, Proceedings of the Second International Conference on Processing Materials for Properties. 2000. p. 839-844
Nakashima, Kunihiko ; Yamamoto, Keisuke ; Shibata, Etsurou ; Tahori, Hiroko ; Mori, Katsumi. / The oxidation rate of Pb and Ni in the copper by slag. Proceedings of the Second International Conference on Processing Materials for Properties. 編集者 / B. Mishra ; C, Yamauchi ; B. Mishra ; C. Yamauchi. 2000. pp. 839-844
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abstract = "The kinetic experiments were carried out at 1200°C to develop some effective slags for removing Pb and Ni from liquid copper, and the effects of slag composition on the extent and on the rate of the removal were examined. It was found that the slag viscosity and the activity coefficient of PbO were lowered by the addition of B2O3. For slags containing B2O3, the reaction almost finished within 5 minutes after adding slag and the degree of removal was more than 90{\%}. But the removal degree of Ni was not so high compared with that of Pb. Thus, Ni removal by oxidation was more difficult than Pb removal. For example, the removal degrees of more than 90{\%} for Pb and of about 50{\%} for Ni were obtained Cu2O-B2O3-Fe2 O3 slag. The change in metal composition during oxidation reaction could be explained by the couple reaction model.",
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AB - The kinetic experiments were carried out at 1200°C to develop some effective slags for removing Pb and Ni from liquid copper, and the effects of slag composition on the extent and on the rate of the removal were examined. It was found that the slag viscosity and the activity coefficient of PbO were lowered by the addition of B2O3. For slags containing B2O3, the reaction almost finished within 5 minutes after adding slag and the degree of removal was more than 90%. But the removal degree of Ni was not so high compared with that of Pb. Thus, Ni removal by oxidation was more difficult than Pb removal. For example, the removal degrees of more than 90% for Pb and of about 50% for Ni were obtained Cu2O-B2O3-Fe2 O3 slag. The change in metal composition during oxidation reaction could be explained by the couple reaction model.

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