Method for obtaining iron or iron-based powders by organic...

Details Method for obtaining iron or iron-based powders by organic... Method for obtaining iron or iron-based powders by organic...

B - Operations, Transporting

22

F

B22F 9/30 (2006.01) B22F 9/24 (2006.01) G11B 5/706 (2006.01)

Patent

CA 2195105

Method for obtaining an iron powder comprising nickel and/or cobalt, by organic liquid phase precipitation. The method comprises the following stages: adding metallic precursors to a polyol or optionally a simple alcohol base solution, heating the reaction medium to produce a metallic precipitate and recovering and treating the precipitate to obtain the desired powder.

La présente invention concerne un procédé d'obtention d'une poudre de fer pouvant comprendre du nickel et/ou du cobalt, par précipitation en phase liquide organique. Ce procédé comprend une étape d'introduction de précurseurs métalliques dans une solution basique de polyol ou éventuellement d'alcool simple, une étape de chauffage de ce milieu réactionnel pour obtenir un précipité métallique et une étape de récupération et de traitement du précipité pour obtenir la poudre désirée.

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