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Catalysts 2017, 7(11), 321; doi:10.3390/catal7110321

Highly Selective Catalytic Properties of HZSM-5 Zeolite in the Synthesis of Acetyl Triethyl Citrate by the Acetylation of Triethyl Citrate with Acetic Anhydride

1
Department of Environmental Engineering, Sunchon National University, 255 Jungang-ro, Sunchon, Jeonnam 57922, Korea
2
College of Pharmacy, Sunchon National University, 255 Jungang-ro, Sunchon, Jeonnam 57922, Korea
3
Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Korea
4
School of Environmental Engineering, University of Seoul, 163 Seoulsiripdaero, Dongdaemun-gu, Seoul 02504, Korea
*
Author to whom correspondence should be addressed.
Received: 30 September 2017 / Revised: 22 October 2017 / Accepted: 26 October 2017 / Published: 30 October 2017
(This article belongs to the Special Issue Zeolites and Catalysis)
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Abstract

The catalytic activities of acid catalysts for the acetylation of triethyl citrate with acetic anhydride in the preparation of acetyl triethyl citrate were evaluated. Microporous zeolites such as HZSM-5 and HY zeolites catalysts were introduced as heterogeneous acid catalysts. HZSM-5 zeolite catalysts showed a high conversion of triethyl citrate and excellent selectivity of acetyl triethyl citrate. The catalytic activities of HZSM-5 zeolites were superior to those of the HY zeolites. In particular, the selectivity of acetyl triethyl citrate on HZSM-5 zeolites exceeded 95%. The moderate acid strength of HZSM-5 (Si/Al = 75) zeolite led to the highest catalytic activities among the HZSM-5 zeolite catalysts, which have various acid strengths. View Full-Text
Keywords: acetyl triethyl citrate; HZSM-5 zeolite; acetylation; triethyl citrate; plasticizer acetyl triethyl citrate; HZSM-5 zeolite; acetylation; triethyl citrate; plasticizer
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Chung, K.-H.; Jeong, S.; Kim, H.; Kim, S.-J.; Park, Y.-K.; Jung, S.-C. Highly Selective Catalytic Properties of HZSM-5 Zeolite in the Synthesis of Acetyl Triethyl Citrate by the Acetylation of Triethyl Citrate with Acetic Anhydride. Catalysts 2017, 7, 321.

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