Table 2 Separation factors for staged treatments of the Sm-Co magnet leachate and the Nd-Fe-B mixed magnet leachate at 25 °C as depicted in Fig. 4.
Leachate | Product | Separation | \({{{{{{\rm{\alpha }}}}}}}_{1}\) | \({{{{{{\rm{\alpha }}}}}}}_{2}\) | \({{{{{{\rm{\alpha }}}}}}}_{{{{{{\rm{total}}}}}}}\) |
|---|---|---|---|---|---|
\({{{{{{\mathscr{l}}}}}}}_{0}\) → \({{{{{{\rm{s}}}}}}}_{1}\) | \({{{{{{\rm{s}}}}}}}_{1}\) → \({{{{{{\rm{s}}}}}}}_{11}\) | \({{{{{{\mathscr{l}}}}}}}_{0}\) → \({{{{{{\rm{s}}}}}}}_{11}\) | |||
Sm-Co | Co-rich | \({{{\alpha }}}_{{{{{{\rm{Fe}}}}}}/{{{{{\rm{Co}}}}}}}\) | 0.82 | 1.11 | 0.91 |
Sm-Co | Co-rich | \({{{{{{\rm{\alpha }}}}}}}_{{{{{{\rm{Fe}}}}}}+{{{{{\rm{Co}}}}}}/{{{{{\rm{Sm}}}}}}}\) | 1.96 | 52.3 | 102 |
Nd-Fe-B | Fe + Co-rich | \({{{{{{\rm{\alpha }}}}}}}_{{{{{{\rm{Fe}}}}}}+{{{{{\rm{Co}}}}}}/{{{{{\rm{Ln}}}}}}}\) | 9.69 | 54.5 | 528 |
Nd-Fe-B | Fe + Co-rich | \({{{{{{\rm{\alpha }}}}}}}_{{{{{{\rm{Fe}}}}}}/{{{{{\rm{Co}}}}}}}\) | 1.04 | 1.02 | 1.06 |
