Device and process for the production of nanoparticles and a liquid alkali metal containing dispersed particles

The invention relates to a nanoparticle production device (1) by heating and melting a mixture of a metal powder and a gas in a heating space (20), cooling in a cooling space (40) and collected in a collecting chamber (50). These three spaces form a continuous flow path without against the current, and the cross-sectional area of ​​the collecting space (50) is much larger than that of the heating and cooling areas. Application area: A process for producing nanoparticles in a liquid metal, to improve dispersion of the nanoparticles.