[cgc10]

I have to create a separation and purification scheme for a 3-component mixture composed of 2 neutral compounds and either an organic acid or base (ethyl-4-aminobenzoate/ benzil/ 1,4-dibromobenzene). The objective is to isolate 2 compounds in pure form.
I know extraction and crystallization are necessary, but what steps do I need to take in order to have the pure compounds? And in what order? Please please help, it's urgent!!

[spirochete]

You might get better results if you were more specific about what the neutral compounds are?

For the acid or base, look up acid/base extraction. You can exploit the drastically different solubilities of ionic and non ionic organic compounds to separate them.

[sjb]

You might get better results if you were more specific about what the neutral compounds are?

I thought they were mentioned -

... ethyl-4-aminobenzoate/ benzil/ 1,4-dibromobenzene...

?

All three are known compounds - is there anything in the Merck index or similar about the solubility or boliling point, for instance, of benzil / p-dibromobenzene?