Thus, according to a preferred aspect of the invention, the mixture of propyne and propadiene in the C3 mixture can be concentrated by selective scrubbing with a solvent, whereby {HEAD ~ a solvent stream} containing {TAIL ~ the C3 mixture} is obtained 
containing
Thus , according to a preferred aspect of the invention , the mixture of propyne and propadiene in the C3 mixture can be concentrated by selective scrubbing with a solvent , whereby { HEAD ~ a solvent stream } containing { TAIL ~ the C3 mixture } is obtained
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 OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH