| 摘要 |
The invention concerns a method for recycling an article based on at least a vinyl chloride or vinylidene chloride polymer, which consists in: a) shredding the articles into fragments having an average dimension of 1 cm to 50 cm in case it should exceed said dimensions; b) contacting the article fragments with an azeotropic or quasi-azeotropic mixture of water and a solvent capable of dissolving the polymer, at a temperature not less than 120 DEG C; c) precipitating the polymer dissolved in the solvent by expansion and by injecting water vapour into the resulting solution, thereby further causing the solvent-water azeotrope to be entrained and leaving a mixture essentially consisting of water and solid polymer particles; d) collecting the polymer particles.
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