Selective precipitation of magnetite in copper slag by controlled molten oxidation

Yong Fan, Etsuro Shibata, Atsushi Iizuka, Takashi Nakamura

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Molten oxidation is a sustainable process for direct precipitation of magnetite from melt copper smelter slag because it involves zero or less energy input due to the exothermic reaction and free reducing carbon addition. During molten oxidation, magnetite precipitation occurred preferentially because of its intensive ferromagnetism and large crystal size, which enables downstream magnetic separation. Previous milligram-scale experiments conducted using an infrared furnace show that magnetite could be precipitated, while precipitation of hematite was limited under an atmosphere of 1 vol% oxygen. In this study, gram-scale experiments were conducted using an electric furnace to verify larger-scale molten oxidation at 1 vol% oxygen.

本文言語English
ホスト出版物のタイトルAdvances in Molten Slags, Fluxes, and Salts
ホスト出版物のサブタイトルProceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016
編集者Ramana G. Reddy, Pinakin Chaubal, P. Chris Pistorius, Uday Pal
出版社Springer International Publishing AG
ページ687-694
ページ数8
ISBN(印刷版)9783319486253
出版ステータスPublished - 2016 1 1
イベント10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016 - Seattle, United States
継続期間: 2016 5 222016 5 25

出版物シリーズ

名前Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016

Conference

Conference10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016
国/地域United States
CitySeattle
Period16/5/2216/5/25

ASJC Scopus subject areas

  • 機械工学
  • 材料力学
  • 材料化学
  • 金属および合金

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