A basic study on the effective utilization of chromium-containing steel slag

Etsuro Shibata, Takashi Nakamura

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The saturated solubility of chromium oxide and the valence of chromium in the slag are important matters when considering how to effectively utilize chromium-containing slags. The experimental data of various types of slags cited in the literature were arranged according to the optical basicity in order to evaluate the effects of the oxygen potential and the slag composition. The saturated solubility of chromium oxide and the Cr2+ / Cr3+ ratio tend to decrease with the increase of the optical basicity of the slag at an oxygen potential below 10-5 atm. However, at an oxygen potential of 0.21atm, the saturated solubility and the Cr6+/Cr3+ ratio tend to increase with an increase of the optical basicity. A practical approach was suggested to reduce chromium in the stainless steel slag and simultaneously recover it as a ferroalloy by the direct smelting reduction of chromium oxide in the molten slag using some reductant in a small furnace.

本文言語English
ホスト出版物のタイトルYazawa International Symposium
ホスト出版物のサブタイトルMetallurgical and Materials Processing: Principles and Techologies; Materials Processing Fundamentals and New Technologies
編集者F. Kongoli, K. Itagaki, C. Yamauchi, H.Y. Sohn, F. Kongoli, K. Itagaki, C. Yamauchi, H.Y. Sohn
ページ773-785
ページ数13
1
出版ステータスPublished - 2003 10月 16
イベントYazawa International Symposium: Metallurgical and Materials Processing: Principles and Technologies; Materials Processing Fundamentals and New Technologies - San Diego, CA, United States
継続期間: 2003 3月 22003 3月 6

Other

OtherYazawa International Symposium: Metallurgical and Materials Processing: Principles and Technologies; Materials Processing Fundamentals and New Technologies
国/地域United States
CitySan Diego, CA
Period03/3/203/3/6

ASJC Scopus subject areas

  • 工学(全般)

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