鉄鉱石中の鉱物相の水溶液中での構造変化

Noriko Obara, Reiko Murao, Kozo ShinOda, Shigeru Suzuki

研究成果: Article査読

1 被引用数 (Scopus)

抄録

This paper provides a view of formation pathways of various iron oxides, such as hematite, goethite, lepidocrocite, magnetite etc. via aqueous solution. Formation mechanisms of these iron oxides are important to understand formation processes of iron-relevant minerals in Precambrian banded iron formations (BIF). This is because most of iron ores used in Japanese steel industries are imported from BIFs of Australia, Brazil and so on. The chemical and physical properties of the iron ores considerably dominate their sintering before iron making. Nevertheless, formation processes of the iron ores are still enigmatic, since the iron oxide species are changed by a number of reaction conditions. Various analytical techniques have been used to elucidate oxidation and reduction of the iron oxides in solution from the viewpoint of electrochemical reaction in aqueous solution so far. In those investigations, structural stability of the iron oxides has been studied using the electrochemical potential and pH diagrams of solution. In this paper, formation processes of the iron oxides are discussed as related to the iron ore formation. It is stressed that structural changes of iron oxides including green rusts and oxyhydroxides play an important role in most of iron ore formation.

寄稿の翻訳タイトルStructural Changes of Minerals in Iron Ores via Aqueous Solution
本文言語Japanese
ページ(範囲)534-541
ページ数8
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
107
6
DOI
出版ステータスPublished - 2021 6月 1

Keywords

  • Iron ores
  • Iron oxides
  • Iron oxyhydroxides
  • Minerals
  • Structure

ASJC Scopus subject areas

  • 凝縮系物理学
  • 物理化学および理論化学
  • 金属および合金
  • 材料化学

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