Process for recovering polyester from polyester/wool blend
AssigneeReliance Industries Limited
InventorsVidhya Rangaswamy, Anurag Srivastava, Vijai Balachandran, Harshvardhan Joshi
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Abstract
The present disclosure relates to a process for recovering a polyester component and products of a non-polyester component from a fabric containing a polyester blend. The polyester component of the present disclosure is polyethylene terephthalate and the non-polyester component is wool. The process includes hydrolyzing the article using at least one hydrolyzing agent to convert the non-polyester component into products of the non-polyester component and release the polyester component.
Claims10
A process for recovering, from an article comprising a polyester blend comprising a polyester component and a non-polyester component, the polyester component and products of the non-polyester component wherein said non-polyester component is wool;
- said process comprising hydrolyzing said article using at least one hydrolyzing agent having pH ranging from 7 to 14 to convert said non-polyester component into products of the non-polyester component, followed by washing to remove said alkali and said products of said non-polyester component and drying to recover the polyester component wherein said hydrolyzing agent is an alkali;
- and
- wherein, said alkali has a concentration ranging from 3 to 5% (w/v).
Dependencies are inferred from the claim text.