Evaluation of Viscosity of Molten SiO_2-CaO-MgO-Al_2O_3 Slags in Blast Furnace Operation

Nakamoto, Masashi; Tanaka, Toshihiro; Lee, Joonho et al.

ISIJ International, 2004, 44(12), 2115-2119

Number of Access:457（2025-08-14 18:27 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/26412

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Title
Evaluation of Viscosity of Molten SiO_2-CaO-MgO-Al_2O_3 Slags in Blast Furnace Operation
Creator
NRID
1000080467539 1000080467539
ORCID
0000-0003-4684-0200 0000-0003-4684-0200
researchmap permalink
read0090330 read0090330
Scopus Author ID
7102132238 7102132238
CreatorName
Nakamoto, Masashi
NRID
1000010179773 1000010179773
researchmap permalink
read0013978 read0013978
CreatorName
Tanaka, Toshihiro
CreatorName
Lee, Joonho
NRID
1000090029348 1000090029348
CreatorName
Usui, Tateo
Subject
blast furnace
low temperature
molten slag
viscosity
Al_2O_3
Abstract
The viscosity of molten SiO_2-CaO-MgO-Al_2O_3 slag was measured using a rotating cylinder method at high CaO and Al_2O_3 concentration regions to search for a slag with low melting temperature and low viscosity. The experimental results showed that the viscosity of molten 35mass%Al_2O_3-43.1mass%CaO-7.5mass%MgO-14.4mass%SiO2 slag at 1673 K was lower than 0.6 Pa·s that satisfies the fluidity in blast furnace operation. The experimental results were compared with the alculated results of the viscosity model derived by the authors. The viscosity of molten SiO_2-CaO-MgO-Al_2O_3 system can be evaluated from our model in wide Al_2O_3 concentration range.
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)
44(12)
Page
2115-2119
Date of Issued
2004
Language
English
Handle URL
https://hdl.handle.net/11094/26412
PISSN
09151559
NCID
AA10680712
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.2355/isijinternational.44.2115
Access Rights
open access
CopyRight
© 2004 ISIJ
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article