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:
Jan. 10, 2017
Filed:
May. 30, 2012
Vincenzo Roberto Calderone, Delft, NL;
Nirappurackal Raveendran Shiju, Amsterdam, NL;
Gad Rothenberg, Oegstgeest, NL;
Daniel Curulla-ferre, Courbevoie, FR;
Vincenzo Roberto Calderone, Delft, NL;
Nirappurackal Raveendran Shiju, Amsterdam, NL;
Gad Rothenberg, Oegstgeest, NL;
Daniel Curulla-Ferre, Courbevoie, FR;
Total Raffinage Chimie, Courbevoie, FR;
Abstract
The present invention pertains to novel core-shell particles comprising a core of iron oxide and a shell of cobalt oxide, characterized in that they are spherical with a number average diameter, as measured by TEM, of between 1 and 20 nm. This invention is also directed to their uses in the manufacture of a catalyst, and to the method for preparing these particles, by precipitating cobalt oxide onto magnetite or hematite particles which are themselves precipitated from Fe(III) and optionally Fe(II) salts.