The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 04, 2017

Filed:

Sep. 06, 2012
Applicants:

Holger Wulfert, Berlin, DE;

Horst-michael Ludwig, Kronach, DE;

Inventors:

Holger Wulfert, Berlin, DE;

Horst-Michael Ludwig, Kronach, DE;

Assignee:

LOESCHE GmbH, Duesseldorf, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21C 5/36 (2006.01); C04B 5/06 (2006.01); C04B 7/147 (2006.01); C22B 7/04 (2006.01); C21B 3/08 (2006.01);
U.S. Cl.
CPC ...
C21C 5/36 (2013.01); C04B 5/06 (2013.01); C04B 7/147 (2013.01); C21B 3/08 (2013.01); C22B 7/04 (2013.01); Y02P 10/216 (2015.11); Y02P 40/143 (2015.11);
Abstract

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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