| 摘要 |
<p>A process for defluorinating a solution of a sulphate of Zn, Ni, Cd, Mn and/or Mg, in which Al3+ and PO43- ions are added to the solution, then the solution is neutralized up to a pH higher than 4 and lower than that one that causes a substantial precipitation of Zn, Ni, Cd, Mn and/or Mg, thereby producing a fluorinated precipitate, and the precipitate is separated from the solution.</p> |
