| abstract |
A process for producing a valve metal powder by producing a precursor of the desired form, converting the precursor to an oxide of the valve metal, stabilizing the structure of the oxide by heat treatment, and reducing the stabilized oxide while maintaining the form will be. Specifically, valve metal powders which can be obtained in this way and comprise spherical aggregates having an average aggregate size of 10 to 80 μm, preferably 20 to 40 μm, and those valve metal powders for producing solid electrolyte capacitors It is about a use. |