部分還元処理による鉄鉱石中りんのダイカルシウムシリケート相への濃化

Nobuhiro Maruoka, Hironari Kubo

研究成果: Article査読

抄録

It is necessary to develop an innovative iron-making technology for low-grade iron ore containing a high concentration of P. In this study, we propose a new process for enriching phosphorus in the C2S phase by mixing high-P iron ore, CaO, and graphite in appropriate proportions and partially reducing it. In this study, high-P iron ore adjusted to various basicities and reducing agent ratios was heated at 1573 K in Ar atmosphere, and the obtained sample was analyzed by EPMA. The results showed that in the reduced sample obtained under the conditions of C/S = 2.0 and Target FetO = 60%, more than 95% of P was distributed to the C2S phase, and the P content in metallic iron was sufficiently low.

寄稿の翻訳タイトルEnrichment of Phosphorus from Iron Ore to Dicalcium-silicate Phase by Partial Reduction
本文言語Japanese
ページ(範囲)527-533
ページ数7
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 1

Keywords

  • Dicalcium silicate
  • Ironmaking
  • Low grade ore
  • Phosphorous
  • Separation

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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