Trial on the Applicaton of Capillary Phenomenon of Solid CaO to Desulfurization of Liquid Fe

Tanaka, Toshihiro; Ogiso, Yumi; Ueda, Mitsuru et al.

ISIJ INternational, 2010, 50(8), 1071-1077

Number of Access:390（2025-09-03 08:28 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/26385

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Title
Trial on the Applicaton of Capillary Phenomenon of Solid CaO to Desulfurization of Liquid Fe
Creator
NRID
1000010179773 1000010179773
researchmap permalink
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CreatorName
Tanaka, Toshihiro
CreatorName
Ogiso, Yumi
NRID
1000020007199 1000020007199
CreatorName
Ueda, Mitsuru
CreatorName
Lee, Joonho
Subject
refining
desulfurization
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
ISIJ INternational
Volume (Issue)
50(8)
Page
1071-1077
Date of Issued
2010
Language
English
Handle URL
https://hdl.handle.net/11094/26385
PISSN
09151559
NCID
AA10680712
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.2355/isijinternational.50.1071
Access Rights
open access
CopyRight
© 2010 ISIJ
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article