Shoot them or sell them. 9mm are fairly easy to sell if you don't get too greedy.
This.
I powder coat all my own bullets of course, but it's just not worth the time or trouble to clean wax lubed bullets for coating. You need to have them completely clean for the coating to stick, so a process like NVhntr described is necessary at minimum, and you really need to do several rinses in a strong solvent like acetone or laquer thinner.
It's really just not worth the trouble, especially when they'll probably shoot OK as-is if you figure out a decent load and don't over crimp or use one of those "factory crimp dies".
