鉄鉱石の CO ガス還元時における繊維状金属鉄の成長

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概要

• 論文の詳細を見る

• Some iron ores were reduced by CO gas in a modified scanning electron microscope equipped with a temperature and gas control ; iron precipitates during the reduction were directly observed. Growing mechanism of such precipitates was discussed on their growth in vertical and horizontal directions : the vertical growth is caused by precipitation of supersaturated iron ions under an iron nucleus, which is consequently pushed out toward a free space ; while the horizontal one by precipitation of iron ions at a threephase boundary of precipitated iron, wustite and gas where they were produced. The typical fibrous iron was represented as the result of predominant vertical growth. Very long, fine and dense fibrous iron which appeared in a sulfur-bearing atmosphere was speculated to be attributed to inhibition of the sulfur from the three-phase boundary reaction.

• 社団法人日本鉄鋼協会の論文
• 1985-07-01

著者

• 小林 睦弘

  アーヘン工科大学:(現)東京工業大学工学部

• グーデナウ H.

  アーヘン工科大学

• ブルヒャード W.

  アーヘン工科大学

• シェーファー H.

  アーヘン工科大学

関連論文

• 鉄鉱石の CO ガス還元時における繊維状金属鉄の成長
• 167 OBSERVATION OF FIBROUS IRON GROWTH DURING REDUCTION OF IRON ORES WITH CO GAS(IRONMAKING, The 104th ISIJ Meeting)

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