[gluon_spin]

Could someone describe to me the general characteristics of how to go about separating one metal from another metal? I have three scenarios I am trying to consider, all for research purposes in sensors technology.
1) How to separate aluminum from lead.
2) How to separate iron from carbon.
3) How to separate a radioactive element from aluminum.

I am not sure if there is a general approach that applies to all three; I would appreciate any help that you can offer.
Thanks

[Borek]

Carbon is not a metal, unless you talk to astrophysicist. There is no general approach that'll work in all cases. Last one is in fact undefined, as different elements will require different techniques.

[gluon_spin]

Thanks for the clarification. I will be more specific. How is uranium separated from aluminum?

Thanks