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.

Patent No.:

US 9683276 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 20, 2017

Filed:

Jul. 02, 2011
Applicants:

Udo Meynerts, Mulheim a.d. Ruhr, DE;

Saulo Henrique Seabra Da Rocha, Herzogenrath, DE;

Michael Maurer, Leichlingen, DE;

Inventors:

Udo Meynerts, Mulheim a.d. Ruhr, DE;

Saulo Henrique Seabra Da Rocha, Herzogenrath, DE;

Michael Maurer, Leichlingen, DE;

Assignee:

RHM Rohstoff-Handelsgesellschaft mbH, Mulheim a.d. Ruhr, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 1/16 (2006.01); C22B 1/24 (2006.01); C22B 1/244 (2006.01); C22B 1/245 (2006.01); C22B 1/248 (2006.01); C22B 7/02 (2006.01);
U.S. Cl.
CPC ...
C22B 1/16 (2013.01); C22B 1/24 (2013.01); C22B 1/244 (2013.01); C22B 1/245 (2013.01); C22B 1/248 (2013.01); C22B 7/02 (2013.01); Y02P 10/216 (2015.11);
Abstract

The invention relates to a method of agglomerating iron oxide-containing residual substances, in particular scale and mill scale, wherein the residual materials and the paper sludge are dried and comminuted and agglomerates are produced by means of hot briquetting from the mixture comprising the residual substances and the paper sludge. In this way, mill scale briquettes of high strength and density can be produced which in steelmaking processes can then be charged into an electric arc furnace for the purpose of recycling the iron contained in the residual substances.


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