Swim doesnt know shit about wackers (except for romantic evenings with self), but he does know about emulsions. Sounds like swiy has himself a big emulsion.
For dealing w/emulsions try:
-run mixture through a buchner funnel (no filterpaper)
-gently poking it with a stick (mess with it with a glass rod- not a very effective technique btw)
-adding NaCl (the kosher kind) to make the polar layer more polar
-warming up the solution (however, this may not bee a good idear as ketone is present)
-gentle rocking of solution
-giving it time (it should separate, however as you have stated, ketone doesnt store so well specially if theres a bunch of impurities)
Hope that helps some.
The best 'cure' for emulsions is not forming them in the first place, that means GENTLE addition of immiscible solutions (when adding, try to make it so the liquid doesnt 'drop' into container, make it have contact with the side of the container and run down. Also, when washing or extracting, if there are a series of washes to bee done, ALWAYS start gentle, even just lightly swirling (remember to vent) and stop every once and a while to see whats happening, if an emulsion starts to form, dont continue to shake the shit out of it hoping to clear it up, thats the worst thing you can do. Swim'll usually go real gentle for the first wash, then slightly more agressive on the second etc...