[gluon_spin]

I am working on proliferation research and would like to understand how uranium metal is separated from aluminum metal. Could someone outline the process for me?

[Maz]

It is a rather simple process that goes something like this.  Remember, this is just one method:

Dissolve the alloy in a caustic-nitrate solution, precipitate the uranium as ammonium diuranate, dry it, denitrate it, fluorinate it and finally undergo a bomb reduction using, say, magnesium. 

I don't want to go into details for obvious reasons, but this should be enough for a report on (hopefully) non-proliferation.