A solvent recycling technique is studied for treatment of waste poly(vinyl chloride) (PVC) bottles. The process proposed basically comprises dissolution of the collected material, reprecipitation, through washing of the polymer obtained, and drying. On the other hand, solvent mixtures involved are separated by distillation for further reuse. Cyclohexanone/n‐hexane proved to be the most satisfactory solvent/non‐solvent system due to the high yields attained in polymer of small grain size while recovering most of the solvents employed. Excellent molecular weight and mechanical property retention characterizes the polymer grade recycled.
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Kampouris et al. (1986) studied this question.
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