Method for the treatment of steelwork slag and hydraulic mineral binder

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United States of America Patent

PATENT NO 9695485
APP PUB NO 20150159233A1
SERIAL NO

14419167

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Abstract

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The invention relates to a method for processing steel slag to produce a hydraulic mineral binder with a high hardening potential and to recover iron. There is provision for this purpose to provide a feed product comprising steel slag with MnO. This feed product is further processed as a melt by introducing reducing agent into the melt. A lime saturation factor of between 90 and 110 is hereby to be achieved in the mineral melt portion. Subsequently the melt is cooled in a defined manner and elementary iron is mechanically separated from the solidified melt. The solidified melt is then supplied for use as hydraulic mineral binder. Furthermore the invention relates to a hydraulic mineral binder.

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Patent Owner(s)

  • LOESCHE GMBH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ludwig, Horst-Michael Kronach, DE 6 8
Wulfert, Holger Berlin, DE 12 25

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