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:
Aug. 08, 2023
Filed:
Jul. 31, 2019
Applicant:
Vale S.a., Rio de Janeiro, BR;
Inventors:
Michelle Lacerda Sales Marques, Belo Horizonte, BR;
Joaquim Donizetti Donda, Belo Horizonte, BR;
Assignee:
VALE S.A., Rio de Janeiro, BR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B02C 21/00 (2006.01); B02C 4/02 (2006.01); B02C 23/12 (2006.01); C22B 1/00 (2006.01);
U.S. Cl.
CPC ...
B02C 21/00 (2013.01); B02C 4/02 (2013.01); B02C 23/12 (2013.01); C22B 1/00 (2013.01);
Abstract
This invention relates to a process of comminution of iron ore or iron ore products (pellet feed, sinter feed, etc.) at natural moisture without the need to add water or to include a drying step in the process, that is technically and economically feasible. The comminution process of this invention uses at least one piece of equipment selected from the group consisting of roller press (HPGR), vertical roller mill (VRM), roller crusher (RC) and high acceleration screen of at least 10G.