AG der Dillinger Hüttenwerke (Dillingen, Germany):

Arlt K.-J., Dr. Eng., Head of Environment Protection Direction

Bannenberg N., Dr. Eng., Head of Technical Dept.

“Steel” Economical Corporation (Düsseldorf, Germany):

Endemann G., Mag. Eng., Head of “Politics” Business Direction, e-mail: gerhard.endemann@vdeh.de

Institute of Study of Building Materials (Duisburg, Germany):

Motz H., Dr. Eng., CEO

The metallurgy of steelmaking is directly connected with the production of slags. Importance of steel and iron and steel industry for Germany is substantiated because the majority of manufacturing industries here is steel-intensive and resource-efficient, therefore it is noted that high-technology steels would not be possible without slags. On the other hand, slag as a product is increasingly caught in the mill work of environmental and resources politics, so that traditional areas of applications are threatened and the use of slags could be restricted in the near future despite many years of experience. Usage of metallurgical slags as raw materials, building materials and fertilizers is observed. The main components of blast furnace, converter and ladle slags are illustrated and specific production of these kinds of slags in Germany during 1972-2011 is analyzed. Commercialization of slags as highly valuable by-products of the steelmaking process needs suitable, especially legal frame conditions. Operation of the new processing plant for steel slags at AG der Dillinger Huttenwerke is observed. The problems of resource-saving application of slags in Germany and worldwide are discussed and it is concluded that politicians should provide reasonable and practical requirements for efficient usage of mineral secondary resources, including metallurgical slags.

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2. The Boston Consulting Group (BCG) [Hrsg.]: CO₂-Bilanz Stahl — ein Beitrag zum Klimaschutz, Düsseldorf, Marz 2010, Download unter: www.stahl-online.de

3. Bialucha, R.; Motz, H.; Sokol, A.; Kobesen, H.: The registration of ferrous slag within Reach, Proc. 6^th Europ. Slag Conf., Madrid, Spanien, 20.–22. Okt. 2010, S. 9/18.

4. Bundesministerium für Umwelt, Naturschutz und Reaktorsicherheit [Hrsg.]: Entwurf einer Verordnung zur Festlegung von Anforderungen fur das Einbringen oder das Einleiten von Stoffen in das Grundwasser, an den Einbau von Ersatzbaustoffen und fur die Verwendung von Boden und bodenahnlichem Material, Stand: 31. Okt. 2012.

5. Bundesministerium für Umwelt, Naturschutz und Reaktorsicherheit [Hrsg.]: Verordnung über Anlagen zum Umgang mit wassergefährdenden Stoffen (AwSV), Entwurf, Stand: 16. Nov. 2012.

6. National Institute of Oceanography and Fisheries (NIOF) [Hrsg.]: Red Sea Branch, Hurghada, Final Report „Use of electric arc furnace slag (EAF slag) as a substitute for coral reef transplantation and fixation at El-Guna, North Hurghada, Egypt“, 2011.

7. Posco/RIST [Hrsg.]: R&D activities and field application for slag utilization at Posco, 2012.