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:
Dec. 03, 2013
Filed:
Jun. 01, 2012
Applicants:
Tiago Valentim Berni, Belo Horizonte, BR;
Antonio Clareti Pereira, Belo Horizonte, BR;
Flavia Dutra Mendes, Belo Horizonte, BR;
Inventors:
Tiago Valentim Berni, Belo Horizonte, BR;
Antonio Clareti Pereira, Belo Horizonte, BR;
Flavia Dutra Mendes, Belo Horizonte, BR;
Assignee:
Vale S.A., Rio de Janeiro, BR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process to use ferric sulphate equilibrium to reduce overall acid consumption and iron extraction, the process comprising the steps of: (i) sulphating; (ii) selective pyrolysis and (iii) selective dissolution.