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. 22, 2022
Filed:
Dec. 18, 2018
Applicant:
Rhodia Operations, Aubervilliers, FR;
Inventors:
Lauriane d'Alencon, Issy-les-Moulineaux, FR;
Thierry Le Mercier, Rosny-sous-Bois, FR;
Marc-David Braida, Bry-sur-Marne, FR;
Jacinthe Gamon, Paris, FR;
Philippe Barboux, L'Haÿ-les-Roses, FR;
Assignee:
RHODIA OPERATIONS, Aubervilliers, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F 17/00 (2020.01); C01F 17/288 (2020.01);
U.S. Cl.
CPC ...
C01F 17/288 (2020.01);
Abstract
The present invention pertains to a process for preparing particles of rare earth sulfide comprising the steps of:—preparing a reaction mixture comprising at least one compound comprising at least one rare earth element (A) and at least one alkali metal sulfide (B),—submitting said reaction mixture to a mechanical stress so as to cause a chemical reaction that produces the particles of rare earth sulfide.