AVDRIVNING AV VINYLKLORIDMONOMER

摘要

1750056 IMPROVED VINYL CHLORIDE MONOMER STRIPPING PROCESS Polyvinyl chloride homopolymer or copolymer in wet slurry form, containing high levels of residual vinyl chloride monomer, is stripped of residual monomer in a process wherein the polymer is contacted with a hot gas such as saturated steam at atmospheric pressure or above. Low levels of residual vinyl chloride monomer can be obtained (less than 1 ppm).