| 摘要 |
<p>Method of dissolution of thorium oxide, according to the invention is that the process of dissolution of thorium oxide is carried out in concentrated trifluoromethanesulfonic acid and/or its aqueous solution at a temperature above the temperature boiling acid. In the present invention, an aqueous solution of trifluoromethanesulfonic acid with concentration in range from 30 to 98%, and temperatures from 160 to 200°C is used preferably. In the present invention, an aqueous solution of trifluoromethanesulfonic acid with concentration in range from 65 to 85% at temperatures from 170 to 180°C is used preferably.</p> |
