| abstract |
(57) [Problem] To provide an apparatus for producing fine powder with a simple apparatus configuration, which has a low impurity content and does not use a solvent. SOLUTION: A carbon dioxide supply means for supplying carbon dioxide in a supercritical state, a powdering means for forming a solute powder by ejecting a carbon dioxide supercritical solution containing a solute, and the carbon dioxide supply means And a dissolving means for dissolving a solute in carbon dioxide maintained in a supercritical state, the dissolving means being formed detachably with respect to the powdering means, capable of moving up and down, and horizontally movable. Means. |