Iron and Steel Production | |
ArticleName | Quality of electric arc furnace slag from high-grade steelmaking as a function of metallurgy |
ArticleAuthor | S. Schüler, H.-P. Markus, D. Algermissen, D. Mudersbach |
ArticleAuthorData | Max Aicher Umwelt GmbH (Meitingen, Germany): S. Schüler, Bach. Eng., Head of Product Development Dept.
Lech-Stahlwerke GmbH (Meitingen, Germany):
D. Algermissen, Mag. Sc., Head of Melting Lab. |
Abstract | Abstract: Slag is the most important by-product in iron and steel production and is used in several applications, e. g. in the construction industry, and substitutes by this means natural materials. It is state of the art to control the metallurgical process in order to produce highquality slags. Due to newly designated standards it will be necessary in future to make sure the new quality standards are met by already employed processes or the processes need improvements, from metallurgy to processing. It is shown that economic and technological restrictions for future improvement of ecological properties of electric steelmaking slags should be taken into account. Such constrained conditions are unfavourable for German iron and steel industry, and it can lose its competitiveness in the case of additional strengthening of the legislative base regarding processing and application of steelmaking slags. It is concluded that the balance between economy and ecology should be found. It is recommended to manage the area of application of steelmaking slags, taking into account their ecological compatibility and technical properties. Such approach correlates with up-to-date level of technological developments and is already putting into practice at many German metallurgical works. |
keywords | Electric steelmaking slags, building materials, cement, quality standards, lime, vanadium oxides, impurities, ecological requirements. |
References | 1. World Steel Association: Crude Steel Production, 2013. |
Language of full-text | russian |
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