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:
Nov. 24, 2020
Filed:
Jun. 06, 2017
Applicants:
Centre National DE LA Recherche Scientifique, Paris, FR;
Université D'aix-marseille, Marseilles, FR;
Inventors:
Assignees:
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITE D'AIX-MARSEILLE, Marseilles, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 49/08 (2006.01); B03C 1/00 (2006.01); H01F 1/14 (2006.01); H01F 1/34 (2006.01); C09C 1/24 (2006.01); B22F 9/12 (2006.01); C01B 3/06 (2006.01); C02F 1/48 (2006.01); B82Y 25/00 (2011.01);
U.S. Cl.
CPC ...
C01G 49/08 (2013.01); B03C 1/002 (2013.01); B22F 9/12 (2013.01); C09C 1/24 (2013.01); H01F 1/14 (2013.01); H01F 1/344 (2013.01); B03C 2201/18 (2013.01); B82Y 25/00 (2013.01); C01B 3/061 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C01P 2006/42 (2013.01); C02F 1/48 (2013.01); Y02E 60/36 (2013.01);
Abstract
The application relates to a method for preparing magnetite, comprising steps of: a) reaction at a temperature of 100° to 500° C. of a material containing wüstite with water, in order to obtain a solid comprising magnetite, and then b) recovery of the magnetite in the form of particles wherein more than 25% by weight are of nanometric size.