{HEAD ~ The waste fluid} obtained by conducting the pressure crystallization of the pressure crystallization waste fluid I and separating the crystals of {TAIL ~ the polar vinyl compound} in the second step contains a small amount of the polar vinyl compound, so that the polar vinyl compound may be recovered from the above waste fluid  
{ HEAD ~ The waste fluid } obtained by conducting the pressure crystallization of the pressure crystallization waste fluid I and separating the crystals of { TAIL ~ the polar vinyl compound } in the second step contains a small amount of the polar vinyl compound , so that the polar vinyl compound may be recovered from the above waste fluid
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH