Patent ID: 9257628
Filing Date: 2016-02-09
CPC Classification: B82Y,C01B,C01F,C01G,C01P,C04B,H01L

Claim Text:
1. A process for producing nanoparticles comprising a compound comprising a metal, the process comprising: preparing a w/o microemulsion with at least one precursor of the metal in a dispersed polar phase with an aid of a surfactant, and adding a precipitant to a continuous nonpolar phase, wherein the metal is a transition metal Zr, Hf, Ti, Ta, Sc, Y or La, an element with an atomic number 58 (Ce) to 71 (Lu), Mn, or Fe, a solvent for the at least one precursor in the dispersed polar phase is a polar solvent having a water content of <1 mol-% and the precipitant in the continuous nonpolar phase is a base.