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.:
Date of Patent:
Apr. 25, 2017
Filed:
Dec. 16, 2014
Applicant:
Vale S.a., Centro, Rio de Janeiro, BR;
Inventors:
Maria Beatriz Harmendani Vieira, Belo Horizonte, BR;
Marcus Eduardo Emrich Botelho, Nova Lima, BR;
Assignee:
VALE S.A., Rio de Janeiro, BR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 1/16 (2006.01); C22B 1/24 (2006.01);
U.S. Cl.
CPC ...
C22B 1/2406 (2013.01); C22B 1/16 (2013.01);
Abstract
The present invention refers to an effective method for minimizing the problems of iron ore pellet degradation by weathering during their stockpiling, i.e., by providing an appropriate method for improving the state of the art with regard to iron ore pellet resistance related just to the hydration process of the slag phase. Thus, in order to minimize hydration in the slag phase, stabilizers are introduced into the mixture used to produce iron ore pellets prior to being heat-treated.