How do I convert a ceiling fan with 2 separate wall switches to a separate fan & light switch?
First off, what room is this in? If this is a bathroom what I am saying DOES NOT apply.

OK, so you have a fan with two separate switches, and you want to convert this into a "dual" fan control? This is easy, just remove the two switches and wire the fan control according to the instructions. 
Then you can take the feed wire from the left over switch, and a pigtailed neutral, and a ground of course, and install a receptacle there.

Sorry, I don't draw diagrams for people, but this is not a difficult install, and besides, to draw a diagram we would need to know exactly what wires are in the switch box.

Here is an example of the control I mean: http://www.homedepot.com/p/Lutron-Skylark-300-Watt-Single-Pole-Dual-Fan-Control-and-Dimmer-Light-Almond-S2-LFSQH-LA/202247983