| 摘要 |
<p>The process comprises a) introducing the noble metal in the form of sheets, foils or wafers inside a container provided with grinding means; b) adding into said container a liquid medium having a density comprised between 0.61 and 1,50 g/ml at room temperature; c) grinding the noble metal in the presence of said liquid medium until the noble metal is transformed into a product comprised of noble metal particles of the desired size; d) allowing said particles to sediment; e) extracting said liquid medium; and f) removing the noble metal transformed into fine particles having an average size comprised between 0.00020 mm2 and 0.6mm2, and totally dry. These particles can be added to a liquid medium such as perfume, essence, sparkling wine, champagne, liquor, edible oil, paint or the like.</p> |
