Recycling polyester and recovering glycols

Details Recycling polyester and recovering glycols Recycling polyester and recovering glycols

1996-02-01

1998-04-28

Jagannathan, Vasu

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Process of treating scrap or waste product containing solid...

521 485, 528491, 528495, 528502R, 5283081, 5283087, C08J 1118, C08J 1104

Patent

active

057445036

ABSTRACT:
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 comprised 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.

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