Yeah....
Even if you did want to go the route you suggested, you should pull off the naphtha layer, not let it evap on top of the water containing your spice.
A proper defat for MHRB extracted spice should occur during the acid cook phase. Meaning that you add naphtha right after you have added water and acid to the MHRB. STB's have a much more difficult time defating.
Also with mimosa the defat is really optional, and only to be used if you are aiming for extreme purity or large xtal growth.
As for the spice you have, as others have said a rextalization works best for getting impurities out.
The Spice extends life
The Spice expands consciousness
The Spice is vital for space travel
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Never underestimate the power of STUFF!
I am certifiably insane, as such all posts written by me should be regarded as utter nonsense or attempts to get attention.
I don't know SWIM and personally don't trust him at all. If SWIM is posting, most likely I will not respond...as I said, I don't trust the guy. YOU I trust, but never SWIM.