If one removes acetone via rotary evaporation, what will happen to the crystal bond?
My suggestions are wild stabs at a possible answer to the problem and @Babcock_Hall has rightly called me on them.
But in the spirit of wild debate
Suppose that the crystalbond goes into solution with the acetone.
Suppose the dust particles are then floating in the solution.
Suppose that the dust particles eventually settle to the bottom or are encouraged to go to the bottom via centrifuge.
Suppose that the liquid is evaporated and leaves behind the crystalbond and dust in distinct layers
Could one harvest the dust from the bottom.
Sounds too optimistic to me
another possibility is combination of crystalbond and acetone evaporates together
highly unlikely don't you think?
The suggestion by the OP of using a soxhlet to somehow tease away the crystalbond from the solution is up for discussion.