First of all, get more basic organic chemistry knowledge. You don't need to be a chemist, but have to know the basics at least.
Since this is yor first post, I will try to explain.
Ketone is a general term for organic compounds that are made of two radicals connected to one carbon atom, this atom also connected with an oxygen atom via a double bond.
Get an organic chemistry book and see a diagram. I will try to draw one :
Methyl Ethyl Ketone is made of :
H
|
H-C- Radical Methyl
|
H
H H
| |
H-C-C- Radical Ethyl
| |
H H
H H O H
| | || |
H-C-C---C---C-H Methyl Ethyl Ketone
| | |
H H H
Sorry, this drawing not very good.
Ketone is not a compound name, it is an organic class of compounds like the above. This particular ketone is called Methyl Ethyl Ketone.
It is ALREADY a ketone, don't have to distill it. If you are asking, can I distill MEK ( methyl ethyl ketone ) and obtain a precursor for making XTC, the answer is NO, NO WAY !
Again, get more basic organic chemistry knowledge.