Now it is not that funny anymore, it's getting stupid.
Firtst explain why did you want to separete glycerol out if you are after codeine. Then explain why do you think we could read your mind. Then at least give a minimal amount of data needed (the ratio of the components!).
I expect a very complex explanation so I'l just explain you what to do. First get the alcohol out by disstiling the <95°C fraction. I asume it's a codeine salt that we are talking, right? So, then basify with NaHCO3 (or Na2CO3, NaOH, KOH or ammonia; to pH~10). Extract with toluene (or ether, DCM...) and then salt the codeine freebase out by one of the standard methods (I don't know which salt is the best to have for codeine, UTFSE for that).