Device for purifying and /or decontaminating polyester

摘要

The invention relates to an apparatus for cleaning and/or decontaminating polyester, in particular polyethylene terephthalate (PET). The apparatus has an at least partially heated rotary tubular furnace (1) to be fed with a mixture of polyester and an alkaline material and is for carrying out a saponification reaction in the mixture. The invention is distinguished in that within the rotary tubular furnace (1) a weir (22) is disposed which at least partly closes the interior (5) of the rotary tubular furnace (1).