NDLI: Rapid Dissolution of Quicklime into Molten Slag by Internally Formed Gas

Content Provider	Springer Nature Link
Author	Maruoka, buhiro gami, Hiroshi
Copyright Year	2016
Abstract	In steelmaking process, quicklime is used to produce CaO-based slag. Although rapid dissolution of quicklime is required for high-efficiency refining, it is known that the rate decreases when dicalcium silicate (C$_{2}$S) layer forms around the quicklime by reacting with slag. The equation that driving force is the difference of CaO content between in slag and a liquid phase of slag saturated by C$_{2}$S has been often used for estimating the dissolution rate of lime, in which this saturated value is thermodynamically determined. The authors, however, revealed that the quicklime used in actual operation showed much faster dissolving rate than that of completely calcined lime that is covered by C$_{2}$S layer during dissolution into slag. This was caused by a gas formation due to a thermal decomposition of residual limestone existed in quicklime. In this study, the dissolution rate of quicklime with the gas formation is quantitatively investigated.
Starting Page	113
Ending Page	118
Page Count	6
File Format	PDF
ISSN	10735615
Journal	Metallurgical and Materials Transactions B
Volume Number	48
Issue Number	1
e-ISSN	15431916
Language	English
Publisher	Springer US
Publisher Date	2016-07-07
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Metallic Materials Characterization and Evaluation of Materials Structural Materials Surfaces and Interfaces, Thin Films Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Metals and Alloys Mechanics of Materials Condensed Matter Physics

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