Depolymerization of PET Fibers from Textile Blends and Recovery of Terephthalic Acid-Reference-Cited by-同舟云学术

Depolymerization of PET Fibers from Textile Blends and Recovery of Terephthalic Acid

Published:2024-04-18 Issue:6 Volume:96 Page:813-818
ISSN:0009-286X
Container-title:Chemie Ingenieur Technik
language:en
Short-container-title:Chemie Ingenieur Technik

Author:

Both Leonard¹²,Paschetag Mandy¹^ORCID,Eichert Carsten²,Scholl Stephan¹

Affiliation:

1. Technische Universität Braunschweig Institute for Chemical and Thermal Process Engineering (ICTV) Langer Kamp 7 38106 Braunschweig Germany

2. RITTEC 8.0 Umwelttechnik GmbH Friedrich‐Seele‐Str. 12 38122 Braunschweig Germany

Abstract

AbstractThe hydrolytic depolymerization of poly(ethylene terephthalate) (PET) fibers with solid sodium hydroxide was investigated. The study presents an innovative recycling approach for the recovery of virgin‐quality terephthalic acid (TA) from textile blends consisting of PET and elastane fibers. PET fibers were depolymerized for 5 min at 140 °C. An internal mixer served as an investigation platform for the experiments. The quality of TA is quantified based on its color value. Both the hydrolytic depolymerization of polyester fibers and the quality of the recovered TA are not impaired by the presence of up to 15 % elastane fibers in textile blends.

Publisher

Wiley

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/cite.202300174

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