Slags from metallurgy – raw material potential and recycling

On 12 October 2011 the conference “Slags from Met-allurgy” will take place in Meitingen near Augsburg. The raw material potential and the general conditions of the reuse of slag as secondary raw material are in the focus of the event. The production of steel from scrap and the reuse of the residual products of this production are a unique example of the recycling management. Renowned experts will discuss legal, economic, technological and ecological aspects of the use of slags from the steel industry.

However, the impacts of the production process and of the reuse on the environment will also be a topic of the event. In the last few years steel mills made great efforts as regards recycling. However, binding legal guidelines and information were missing, e.g. in connection with the public discussion concerning the use of slags as building material. This slag symposium is to take into account this need for information of all those who want to produce and process as well as utilize this material (e.g. contract-placing authorities, road construction companies, experts, licensing and specialist agencies). In North Rhine-Westphalia, Lower Saxony and other federal states, steel works slags, as by-products of steel production, have been used for construction measures for many years. Amongst other things, slags have the property that particularly durable and low-noise road surfaces can be made from them. However, the amounts of slag existing in Germany only cover close to four percent of the entire need for building materials.

Due to their properties as building materials, their environmental compatibility, but also due to the legal obligation of utilization and, not least, because of the favourable price, it is a good choice to preferably use the available amounts of slag instead of primary raw materials. The future use of slags is a central topic of the present discussion as regards the long-awaited substitute building materials regulations that will specify the legal framework for the recycling of mineral building materials. Thus, Prof. Dr.-Ing. Martin Faulstich from Munich Technical University, who is also the chairman of the Council of Environmental Advisors, will talk about the material flows in the industrial recycling management. The human toxicological evaluation, dealt with by Mrs Prof. Dr. Heidi Foth, will also be very interesting. She is the director of the Institute of Environmental Toxicology of Halle University and also a member of the Council of Environmental Advisors. There is a connection between this event and the Bavarian Raw Material Summit as regards time and contents. It is part of the cooperation with the chair of resource strategy at the Scientific Centre Environment of Augsburg University, which is held by Prof. Dr. Armin Reller. The goal is to emphasize the raw material potential of slags and to develop processes of their utilization. The organizers are glad that this conference can take place at the location of Lech-Stahlwerke and the SGL Group at Meitingen. Both companies are of special importance for the German automobile industry, i.e. Lech-Stahlwerke as important supplier of special steel for the Bavarian, German and European automobile industry and the SGL Group as supplier, amongst other things, of the innovative carbon fibre for the car production.

x

Related articles:

Issue 11/2011

First slag symposium in Meitingen - a great success

Dr. Michael Heußen, Managing Director of Lech-Stahlwerke GmbH and initiator of the first slag symposium in Meitingen, did not expect such a response. More than 160 experts participated in the special...

more
Issue 06/2014

Recycling potential of ashes, slags and dusts from metallurgy and refuse incineration

The Slag Conference, the third of its kind, which took place in Berlin on 23 and 24 October 2013 in Berlin, was met with great response by the 270 participants from industry, scientific institutions...

more
Issue 05/2018 Wertstoffe • Recyclables

Processes for the dry processing of steel slags with LOESCHE mills for metal recovery and production of silicate composite material for use in the building materials industry

1 Preliminary considerations By-products from the steel industry contain valuable contents. So this article mainly refers to approximately 200?million t/a of steel slags from converters and...

more
Issue 05/2024 Advanced recycling application in Argentina

Crushed slag & concrete are 100 % recycled

For 4 years now, the customer of RM dealer COVEMA S.A.C.I.F. has been crushing concrete and slag with the RM 100GO! crusher in a highly efficient and environmentally friendly manner. With a throughput...

more
Issue 10/2016

Framework Ordinance on the home straight?

The third Berlin “Mineral Byproducts and Waste” conference, held on 20 and 21 June 2016, was awaited with great anticipation, the participants looking forward, in particular, to hearing about new...

more