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

Hangun Kim¹  Sangmin Jeong²  Sang-Chul Jung²  Kyong-Hwan Chung²  Sun-Jae Kim³  Young-Kwon Park⁴ 

[1] College of Pharmacy, Sunchon National University, 255 Jungang-ro, Sunchon, Jeonnam 57922, Korea;Department of Environmental Engineering, Sunchon National University, 255 Jungang-ro, Sunchon, Jeonnam 57922, Korea;Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Korea;School of Environmental Engineering, University of Seoul, 163 Seoulsiripdaero, Dongdaemun-gu, Seoul 02504, Korea;

关键词: acetyl triethyl citrate;    HZSM-5 zeolite;    acetylation;    triethyl citrate;    plasticizer;   

DOI  :  10.3390/catal7110321

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown