Effect of Al2O3 Addition on Mineralogical Modification and Crystallization Kinetics of a High Basicity BOF Steel Slag

doi:10.1007/s11663-018-1465-7

	Effect of Al2O3 Addition on Mineralogical Modification and Crystallization Kinetics of a High Basicity BOF Steel Slag
	Liu, Chunwei 1,2; Huang, Shuigen 1; Blanpain, Bart 1; Guo, Muxing 1
刊名	METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
	2019-02-01
卷号	50 期号:1 页码:271-281
ISSN号	1073-5615
DOI	10.1007/s11663-018-1465-7
英文摘要	Basic oxygen furnace (BOF) steel slag is a main byproduct that is produced during the converter steelmaking process. The volume instability and fast crystallization of BOF slag limits its added-value application. This article aims to understand the effect of Al2O3 on the mineralogical modification and crystallization kinetics of a high basicity BOF steel slag. Continuous cooling transformation and time-temperature-transformation curves were constructed to determine the crystallization characteristics of BOF slag. The critical cooling rate to vitrify the slag was experimentally obtained. The crystallization sequence was clarified by integrating in situ and post-mortem observations with thermodynamic calculations. The results suggest that the addition of Al2O3 can effectively remove free lime, decrease the melting point, and improve the glass formation ability of the high basicity BOF slag. Undercooling the slag is enhanced by increasing the cooling rate and/or adding Al2O3. By steering the addition of Al2O3 and the cooling rate, BOF slag can be modified to obtain a more amorphous phase, presenting an enhanced potential to be a binder for added-value applications.
资助项目	Agency for Innovation by Science and Technology of Belgium (IWT)[140514] ; China Scholarship Council (CSC)[201306080002]
WOS关键词	IN-SITU OBSERVATION ; HOT THERMOCOUPLE TECHNIQUE ; OXYGEN FURNACE SLAG ; MOLD SLAG ; TEMPERATURE ; STABILIZATION ; CARBONATION ; SOLIDIFICATION ; PHOSPHORUS ; HYDRATION
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000456070300028
资助机构	Agency for Innovation by Science and Technology of Belgium (IWT) ; China Scholarship Council (CSC)
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/27740]
专题	中国科学院过程工程研究所
通讯作者	Liu, Chunwei
作者单位	1.Katholieke Univ Leuven, Dept Mat Engn, B-3000 Leuven, Belgium 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, 1 North 2nd St, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liu, Chunwei,Huang, Shuigen,Blanpain, Bart,et al. Effect of Al2O3 Addition on Mineralogical Modification and Crystallization Kinetics of a High Basicity BOF Steel Slag[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,2019,50(1):271-281.
APA	Liu, Chunwei,Huang, Shuigen,Blanpain, Bart,&Guo, Muxing.(2019).Effect of Al2O3 Addition on Mineralogical Modification and Crystallization Kinetics of a High Basicity BOF Steel Slag.METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,50(1),271-281.
MLA	Liu, Chunwei,et al."Effect of Al2O3 Addition on Mineralogical Modification and Crystallization Kinetics of a High Basicity BOF Steel Slag".METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE 50.1(2019):271-281.