固体CaOの毛細管現象を利用した溶鉄の脱硫反応の試み

田中, 敏宏; 小木曾, 由美; 上田, 満 他

鉄と鋼, 2009, 95(3), 275-281

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Identifier to cite or link to this item: https://hdl.handle.net/11094/26368

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Title
固体CaOの毛細管現象を利用した溶鉄の脱硫反応の試み
Trial on the Application of Capillary Phenomenon of Solid CaO to Desulfurization of Liquid Fe
コタイ　CaO　ノ　モウサイカン　ゲンショウ　ヲ　リヨウ　シタ　ヨウテツ　ノ　ダツリュウ　ハンノウ　ノ　ココロミ
Creator
NRID
1000010179773 1000010179773
researchmap permalink
read0013978 read0013978
CreatorName
田中, 敏宏 ; Tanaka, Toshihiro
CreatorName
小木曾, 由美 ; Ogiso, Yumi
CreatorName
上田, 満 ; Ueda, Mituru
CreatorName
李, 俊昊 ; Lee, Joonho
Subject
refining
desulphurization
capillary
molten slag
Abstract
In order to carry out the de-sulfurization of liquid Fe, solid CaO is usually used as a flux, but some of solid CaO particles are not melted into molten slag, and all CaO are not always used for the refining. We have investigated how to use the solid CaO directly and efficiently for the above refining processes. Solid CaO particles have small capillary tubes from their surface to inside. When a molten slag is wetted with solid CaO, the molten slag containing some impurities such as CaS and P_2O_5 is expected to penetrate into those capillary tubes. Although chemical reactions in solid phase are generally believed to be very slow due to slow diffusion in solid phase, those impurities are absorbed in solid CaO rapidly by capillary force and they are removed from molten steels. We named this refining process as Capillary Refining. In the present paper, we have tried to apply capillary refining to de-sulfurization of liquid Fe and carbon-saturated liquid Fe by using molten CaO–Al_2O_3 and CaO–SiO_2–MgO–Al_2O_3 slags.
Publisher
日本鉄鋼協会
The Iron and Steel Institute of Japan
ニホン　テッコウ　キョウカイ
Source Title
鉄と鋼
Volume (Issue)
95(3)
Page
275-281
Date of Issued
2009
Language
Japanese
Handle URL
https://hdl.handle.net/11094/26368
PISSN
00211575
NCID
AN00151251
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.2355/tetsutohagane.95.275
Access Rights
open access
CopyRight
©日本鉄鋼協会
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article