Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Analysis of Tramp Element in Iron Scraps
Akito TOIJunichi SATOTakahiro KANERO
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JOURNALS FREE ACCESS

1997 Volume 83 Issue 12 Pages 850-855

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Abstract

Recycle of materials is expected to reduce environmental burden which accompanies the production of materials. However, the recycle may also result in concentration of tramp elements in the materials. In order to promote the recycle of materials, we have to have clear prospect for the accumulation of the tramp elements. In this study, we have collected iron scraps from various scrap yards in Japan and analyzed the concentration of such tramp elements as copper, tin and chromium. We also estimated tramp element accumulation at shredding processes. The result shows that, although Cu and Sn concentrations in the iron scraps are close to their critical levels, the tramp element accumulation at shredding processes is currently relatively small.

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© The Iron and Steel Institute of Japan
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