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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received August 1, 2017
Accepted September 14, 2017

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Bis(2-Hydroxyethyl) Terephthalate와 1,4-Butanediol의 에스테르 교환 반응

Transesterification Kinetics of Bis(2-Hydroxyethyl) Terephthalate with 1,4-Butandiol

전형철 한명완^†

Hyeongcheol Jeon Myungwan Han^†

충남대학교 공과대학 응용화학공학과, 34134 대전광역시 유성구 대학로 99

Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 99, Daehak-ro, Yuseong-Gu, Daejeon 34134, Korea

mwhan@cnu.ac.kr

Korean Chemical Engineering Research, February 2018, 56(1), 103-111(9), 10.9713/kcer.2018.56.1.103 Epub 2 February 2018

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Abstract

본 연구에서는 PET (Poly Ethylene Terephthalate)의 단량체인 BHET (bis (2-Hydroxyethyl) Terephthalate)와 1,4-BD (1,4-Butanediol)의 에스테르 교환반응을 활용하여 PBT (Poly Butylene Terephthalate)의 단량체인 BHBT (Bis (4-Hydroxybutyl Terephthate)를 생성하는 반응에 대하여 조사하였다. 이 반응의 촉매로 Zinc Acetate를 사용하였다. 회분식 반응기를 통하여 BHET, EG (Ethylene Glycol), THF (Tetrahydrofuran)의 양을 정량하여 반응 kinetics 모델을 구성하였다. 제시된 모델을 통하여 반응속도와 반응물의 조성 분포를 조사하였고, 이 모델의 예측 값과 실험 값들이 잘 일치함을 보였다.

Transesterification of BHET (Bis (2-Hydroxyethyl) Terephthalate), monomer of PET (Poly Ethylene Terephthalate) to BHBT (Bis (4-Hydroxybutyl Terephthate), monomer of PBT (Poly Butylene Terephthalate), using 1,4-BD (1,4-butanediol) were investigated. Zinc acetate was used as a catalyst for the reaction. Amounts of BHET, EG, and THF (Tetrahydrofuran) in a batch reactor were measured for determining the reaction kinetics. Mathematical models of the batch reactor for the transesterification reaction were developed and used to characterize the reaction kinetics and the composition distribution of the reaction products. Model predictions for the transesterification were in good agreement with experimental results.

Keywords

PET Recycle PBT BHET BHBT Transesterification

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