Method for producing metal powders
AssigneeOutokumpu Oy
InventorsHeikki J. Volotinen, Jyri J. Talja, Pekka A. Taskinen
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Abstract
The invention relates to a method for producing metal powders from reactive metals, when the employed raw materials are metal ions in a liquid phase. According to the invention, the metal ions are first reduced into metal in a molten salt electrolysis. The obtained reduction products are further subjected to a high-temperature treatment, for example by means of plasma, in order to improve the powder qualities of the metal. The metal to be treated is for instance titanium or zirconium.
Claims6
A method for producing metal powders from reactive metals employing as raw materials metal ions in a liquid phase, comprising:
- (1) reducing the metal ions to metal by molten salt electrolysis;
- (b) subjecting the reduction product from step (a) to treatment at a temperature higher than the melting point temperature of the metal being treated in order to improve the powder qualities of the metal.
Dependencies are inferred from the claim text.