RECYCLING POLYESTER AND RECOVERING GLYCOLS.

摘要

A process for recovering glycols produced during recycling of polyester comprising the step of extracting aromatic contaminants from the glycols. Extracting the aromatic contaminants is accomplished by: providing a glycol rich stream from a process to recycle polyester. The glycol rich stream comprises glycols, water, and aromatic contaminants. A solvent is added to the glycol rich stream to form a mixture. The mixture is resolved to form a glycol rich component and an aromatic contaminant rich component. The glycols are recovered from the glycol rich component.