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Dry processing and high quality applications for steel works slags



Title: Dry processing and high quality applications for steel works slags
Author(s): A. Jungmann and A. Schiffers
Paper category : conference
Book title: 2nd International RILEM Conference on Progress of Recycling in the Built Environment
Editor(s): V.M. John, E. Vazquez, S.C. Angulo, C. Ulsen
e-ISBN: 978-2-35158-122-3
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 483 - 492
Total Pages: 10
Nb references: 17
Language: English


Abstract: Dry separation techniques for the beneficiation of primary and secondary raw materials are gaining increasing interest throughout the world as the use of water is often costly, not appropriate due to technical reasons and product specifications, or water is simply not available.

An integrated technical solution for the recycling of steel slag is presented. The goal of the system is to optimize metal recovery on the one hand by a combination of new dry processing methods, but not neglecting the applicability of the residual slag on the other hand. The concept comprises the slag handling steps:
• Selective slag comminution
• Separation by sensor-sorting and density methods
• Re-use of the liberated and de-metalized slag as by-product for the construction industry considering high value and ecological applications.

Based on proper slag processing, possible slag applications that are not completely implemented in the actual state of the art for slag processing/handling are introduced. The implementation of this integrated concept in the industry requires a joint effort by steel makers, processing specialists and construction aggregate application and marketing departments.


Online publication: 2012-02-08
Publication type : full_text
Public price (Euros): 0.00