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AssigneesAreva Np, Centre National De La Recherche Scientifique
InventorsBeatrice Sala, Stephanie Willemin, Joel Mazoyer, Thierry Muller, Nathalie Masquelez, Didier Cot, Anne Julbe, Pierre Guillermier
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The present invention relates to a process for preparing mineral particles (p) from mineral species precursors, said process comprising a step (E) in which a fluid medium (F) containing said precursors in solution and/or dispersed in a solvent is injected into a reactor containing CO2 in the supercritical state by way of an injection nozzle opening into a zone where the supercritical CO2 is at a temperature greater than or equal to the temperature for conversion of the precursors into corresponding mineral species. The invention also relates to the particles (p) as obtained by the process, as well as uses thereof.
1-34. (canceled)
A process for preparing mineral particles (p) from mineral species precursors, said process comprising a step (E), wherein a fluid medium (F) containing said precursors in solution and/or dispersed in a solvent (S) is injected into a reactor (1) containing CO2 in the supercritical state, the medium (F) being injected into the reactor (1) by way of an injection nozzle (10) opening into a zone (20) of said reactor where the supercritical CO2 is at a temperature at least equal to the temperature for conversion of the precursors into corresponding mineral species.
Mineral particles as obtained by a process comprising a step (E) wherein a fluid medium (F) containing said precursors in solution and/or dispersed in a solvent (S) is injected into a reactor (1) containing CO2 in the supercritical state, the medium (F) being injected into the reactor (1) by way of an injection nozzle (10) opening into a zone (20) of said reactor where the supercritical CO2 is at a temperature at least equal to the temperature for conversion of the precursors into corresponding mineral species.
Dependencies are inferred from the claim text.