Characteristics of WISCO steelmaking slags
Document Type
Conference Proceeding
Publication Date
1-20-2018
Department
Department of Materials Science and Engineering
Abstract
Steelmaking slag is a by-product in considerable volume and a valuable material for various applications. In general, steelmaking slag is an alkaline compound of CaO, Fe2O3, and SiO2. However, its characteristics varies depending on the feedstocks, steelmaking process and cooling method of the slag. To utilize this by-product effectively, this study investigated the characteristics of steelmaking slags taken from Wuhan Iron & Steel Co. Ltd. The results showed that the slags mainly consist of the oxides of calcium, iron, and silicon, with low contents of magnesia, alumina, and manganese oxide with a feature of high alkalinity and lime saturation factor. The major mineral phases include belite, calcium ferrite, calcium hydroxide, wustite, quartz, and small amount of elite. Thermogravimetric analysis indicated the weight loss from ambient temperature to 800, °C is 8% in total. Melting test showed the glass transition temperature is between 1300 and 1350, °C, flow temperature is about 1400, °C. The slag samples investigated in this study can be considered as a typical glass-ceramic composite.
Publication Title
Minerals, Metals and Materials Series
ISBN
978-3-319-72484-3
Recommended Citation
Li, B.,
He, M.,
&
Li, C.
(2018).
Characteristics of WISCO steelmaking slags.
Minerals, Metals and Materials Series,
Part F8, 95-103.
http://doi.org/10.1007/978-3-319-72484-3_10
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/4155