Sustainable Catalytic Process for Synthesis of Triethyl Citrate Plasticizer over Phosphonated USY Zeolite

Fruits wastage is harmful to health and environment concerning spreading diseases and soil pollution, respectively. To avoid this issue, use of citrus fruit waste for the production of citric acid (CA) is one of viable mean to obtain value added chemicals. Moreover, synthesis of triethyl citrate (TE...

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Main Authors: Nandiwaleand, Kakasaheb Y. (Author), Bokade, Vijay V. (Author)
Format: EJournal Article
Published: Department of Chemical Engineering - Diponegoro University, 2016-10-11.
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LEADER 02858 am a22002653u 4500
001 BCREC_UNDIP_569_440
042 |a dc 
100 1 0 |a Nandiwaleand, Kakasaheb Y.  |e author 
100 1 0 |e contributor 
700 1 0 |a Bokade, Vijay V.  |e author 
245 0 0 |a Sustainable Catalytic Process for Synthesis of Triethyl Citrate Plasticizer over Phosphonated USY Zeolite 
260 |b Department of Chemical Engineering - Diponegoro University,   |c 2016-10-11. 
500 |a https://ejournal2.undip.ac.id/index.php/bcrec/article/view/569 
520 |a Fruits wastage is harmful to health and environment concerning spreading diseases and soil pollution, respectively. To avoid this issue, use of citrus fruit waste for the production of citric acid (CA) is one of viable mean to obtain value added chemicals. Moreover, synthesis of triethyl citrate (TEC), a non-toxic plasticizer by esterification of CA with ethanol over heterogeneous catalyst would be renewable and sustainable catalytic process. In this context, parent Ultrastable Y (USY) and different percentage phosphonated USY (P-USY) zeolites were used for the synthesis of TEC in a closed batch reactor, for the first time. The synthesized catalysts were characterized by N2-adsorption desorption isotherm, powder X-ray diffraction (XRD) and NH3 temperature programmed desorption (TPD. Effect of reaction conditions, such as the molar ratio of ethanol to CA (5:1 - 20:1), the catalyst to CA ratio (0.05 - 0.25) and reaction temperature (363-403 K), were studied in view to maximizing CA conversion and TEC yield. Phosphonated USY catalysts were found to be superior in activity (CA conversion and TEC yield) than parent USY, which is attributed to the increased in total acidity with phosphonation. Among the studied catalysts, the P2USY (2% phosphorous loaded on USY) was found to be an optimum catalyst with 99% CA conversion and 82% TEC yield, which is higher than the reported values. This study opens new avenues of research demonstrating principles of green chemistry such as easy separable and reusable catalyst, non-toxic product, bio-renewable synthetic route, milder operating parameters and waste minimization.  
540 |a Copyright (c) 2016 by Authors, Published by BCREC Group 
540 |a http://creativecommons.org/licenses/by-sa/4.0 
546 |a eng 
690 |a citric acid; plasticizer; ethanol; tri-ethyl citrate; phosphonated USY 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |2 local 
786 0 |n Bulletin of Chemical Reaction Engineering & Catalysis; 2016: BCREC Volume 11 Issue 3 Year 2016 (December 2016); 292-298 
786 0 |n 1978-2993 
787 0 |n https://ejournal2.undip.ac.id/index.php/bcrec/article/view/569/440 
856 4 1 |u https://ejournal2.undip.ac.id/index.php/bcrec/article/view/569/440  |z Get Fulltext