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. 31, 2019
Filed:
Apr. 08, 2016
Universite Pierre ET Marie Curie (Paris 6), Paris, FR;
Centre National DE LA Recherche Scientifique (Cnrs), Paris, FR;
Univ Paris Xiii Paris-nord Villetaneuse, Villetaneuse, FR;
Yann Le Godec, Paris, FR;
Vladimir A. Mukhanov, Paris, FR;
Vladimir L. Solozhenko, Paris, FR;
Petr S. Sokolov, Paris, FR;
Dominique Vrel, Parmain, FR;
UNIVERSITE PIERRE ET MARIE CURIE (PARIS 6), Paris, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), Paris, FR;
UNIV PARIS XII-NORD VILLETANEUSE, Villetaneuse, FR;
Abstract
The present invention relates to a process for the preparation of a boron phosphide, more specifically BP and/or BP, comprising the mechanochemical reaction of boron phosphate (BPO) with at least one alkaline earth metal (EA). In particular, the process of the invention allows for the selective preparation of either BP or BPwith more than 95% purity, through the reduction of boron phosphate (BPO) with at least one alkaline earth metal (EA) according to reaction (1) for BP and according to reaction (2) for BP: BPO+4 EA→BP+4 EA(O) (1) 2BPO+5 (EA)B+3 EA→BP+8 EA(O) (2). The present invention further relates to boron phosphide powders, in particular BP or BPpowders, of nanometric or micrometric size.