Log in

Relevant bibliographies by topics / Esterification kinetics / Journal articles

To see the other types of publications on this topic, follow the link: Esterification kinetics.

Journal articles on the topic 'Esterification kinetics'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Esterification kinetics.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Papamichael, Emmanuel M., and Panagiota-Yiolanda Stergiou. "Reformulated Kinetics of Immobilized Enzymes in Non-Conventional Media: A Case of Lipase-Catalyzed Esterification." Catalysts 14, no. 11 (2024): 830. http://dx.doi.org/10.3390/catal14110830.

Full text

Abstract:

Several approaches have been reported that aim to achieve simplified standardizations of the kinetic behavior of immobilized enzymes under specific experimental conditions. We have previously published simplified rate equations based on the kinetics of immobilized enzymes. Recently, new experimental results have become available on the kinetics and mechanisms of esterifications catalyzed by immobilized lipase in unconventional media, and consequently, a reformulation of their kinetics is necessary. In this work, we report the development of simplified rate equations relating the aforementioned

APA, Harvard, Vancouver, ISO, and other styles

2

Matsumoto, M., and Y. Hasegawa. "Enzymatic Kinetics of Solvent-free Esterification with Bio-imprinted Lipase." Chemical & biochemical engineering quarterly 33, no. 4 (2020): 495–99. http://dx.doi.org/10.15255/cabeq.2019.1692.

Full text

Abstract:

To avoid the use of compounds that burden the environment, a solvent-free enzymatic<br /> reaction was the focus of this study. Investigated were the catalytic activities and kinetics of lipases that were pretreated with carboxylic acids for the solvent-free esterification of propionic acid with isoamyl alcohol. The enhancements of the esterification yields and rates by the bio-imprinting effects of carboxylic acids were observed. We found no inhibition of isoamyl alcohol on the solvent-free enzymatic esterification, and obtained a large imprinting effect under a largely excessive amount

APA, Harvard, Vancouver, ISO, and other styles

3

Маzitоvа, А. К., G. К. Аminovа, and I. N. Vikharevа. "Modeling the kinetic regularities of the preparation of dibutoxyethyl adipates." SOCAR Proceedings, SI2 (December 30, 2021): 1–9. http://dx.doi.org/10.5510/ogp2021si200597.

Full text

Abstract:

Additives are important components of PVC composites, providing polymer modification and retention of its properties throughout the entire period of operation. The development and application of environmentally friendly adipate plasticizers is urgent. The article presents the results of kinetic studies of the esterification of adipic acid with ethoxylated n-butanol of varying degrees of ethoxylation. The effect of various catalysts on the yield of the target ester and the degree of ethoxylation on the rate of the esterification reaction was studied. A mathematical model of the kinetics of the

APA, Harvard, Vancouver, ISO, and other styles

4

Satriana, Satriana, and Muhammad Dani Supardan. "Kinetic Study of Esterification of Free Fatty Acid in Low Grade Crude Palm Oil using Sulfuric Acid." ASEAN Journal of Chemical Engineering 8, no. 1 & 2 (2008): 1. http://dx.doi.org/10.22146/ajche.50112.

Full text

Abstract:

The kinetics of the esterification of free fatty acids (FFA) in low grade crude palm oil (CPO) with methanol was studied. In this work, the effects of operational variables involved in the esterification process i.e. alcohol to oil molar ratio, reaction temperature, agitation speed and the initial amount of FFA of oil, were studied in the presence of sulphuric acid as catalyst at concentration of 1%-w. The experimental results show that the esterification process could lead to a practical and cost effective FFA removal unit in front of typical oil transesterification for biodiesel production.

APA, Harvard, Vancouver, ISO, and other styles

5

Magura, Miroslav, Ján Vojtko, Eva Zemanová, Alexander Kaszonyi, and Ján Ilavský. "Esterification kinetics of phenol with phosphoryl trichloride." Collection of Czechoslovak Chemical Communications 54, no. 3 (1989): 608–15. http://dx.doi.org/10.1135/cccc19890608.

Full text

Abstract:

The liquid-phase esterification kinetics of phenol with POCl3 has been studied at isothermal conditions within the temperature interval from 90 to 110 °C. The esterification rate constants of the first, second, and third esterification steps and the activation energies of these steps have been calculated. The given system of competitive consecutive reactions can be described by a system of differential equations which has been solved by the Gauss-Newton optimization method of non-linear regression in the Marquardt modification. In the sequence of the first, second, and third step the esterific

APA, Harvard, Vancouver, ISO, and other styles

6

Hardhianti, Meiga Putri Wahyu, Rochmadi, and Muhammad Mufti Azis. "Kinetic Studies of Esterification of Rosin and Pentaerythritol." Processes 10, no. 1 (2021): 39. http://dx.doi.org/10.3390/pr10010039.

Full text

Abstract:

Esterification of rosin with pentaerythritol produces rosin pentaerythritol ester (RPE) which is widely used in paint, coating, and pressure-sensitive and hot-melt adhesive industries. Although RPE has excellent valuable applications and has been industrially produced, studies on the reaction kinetics have not been widely reported in the present literature. This work proposed a kinetic study of RPE synthesis by including a series of consecutive reactions forming mono-, di-, tri-, and tetra-ester with decarboxylation of rosin as a side reaction in the kinetics model. For esterification, the rea

APA, Harvard, Vancouver, ISO, and other styles

7

Jawad, Ali Raad Mohammed, and Fadhil Abbas Hummadi. "Reaction Kinetics of Tert-Butanol Esterification." Journal of Engineering 20, no. 12 (2023): 71–87. http://dx.doi.org/10.31026/j.eng.2014.12.05.

Full text

Abstract:

In this study, the kinetics for the reaction of tert-butanol esterification with acetic acid in the presence of Dowex 50Wx8 catalyst was investigated. The reaction kinetic experiments were conducted in 1000 milliliter vessel at temperatures ranged from 50 - 80 oC, catalyst loading 25-50 g/L, and the molar ratios of acetic acid to tert-butanol from 1/3 – 3/1. The reaction rate was found to increase with increasing temperature and catalyst loading. It was also found the conversion of the tert-butanol increases as the molar ratio of acid to alcohol increases from 1/3 – 3/1. The Non-ideality of th

APA, Harvard, Vancouver, ISO, and other styles

8

Sudrajat, Bagus Agang. "Kinetic Study of Esterification Using Ionic Liquid Catalyst." Reaktor 20, no. 3 (2020): 138–49. http://dx.doi.org/10.14710/reaktor.20.3.138-149.

Full text

Abstract:

Biodiesel offers better combustion efficiency, lower sulfur content and aromatic compounds, higher cetane numbers than diesel fuel, biodegradable and renewable properties that are not possessed by conventional fuels such as diesel fuel. This study aims to study the esterification process of Cotton Seed oil using liquid ionic catalyst 1-Butyl-3-MethydidazoliumHexafluorophosphate (BMIM-PF6) which is simulated by MATLAB 2014 software to compare the kinetic model and the reaction order between the experiment and simulation results with 3% liquid ionic catalyst , then test the validity of the react

APA, Harvard, Vancouver, ISO, and other styles

9

Agustian, Egi, Jessica Jessica, Pudji Untoro, and Anny Sulaswatty. "Esterification of Waste Cooking Oil Using Ultrasonic: Kinetic Study." Jurnal Kimia Terapan Indonesia 20, no. 2 (2019): 57–68. http://dx.doi.org/10.14203/jkti.v20i2.397.

Full text

Abstract:

Waste cooking oil (WCO) have a great potential as an alternative raw material for producing biodiesel. The literatures kinetic of the esterification of WCO in the presence of phosphoric acid catalyst with ultrasonic assisted are rare and most literatures used conventional method. This study aims to determine the optimum condition and the parameters of first and second order kinetics of the WCO esterification which was assisted by ultrasonic bath. Variables that used in this study are methanol/oil mole ratio, acid catalyst concentration and reaction temperature. The highest conversion was 42.08

APA, Harvard, Vancouver, ISO, and other styles

10

Meshalkin, V. P., M. R. Kozlovskiy, R. A. Kozlovskiy, I. A. Kozlovskiy, Ya A. Ibatov, and M. C. Voronov. "THE KINETICS OF ESTERIFICATION OF AMMONIUM LACTATE WITH <i>n</i>-BUTANOL." Доклады Российской академии наук. Химия, науки о материалах 511, no. 1 (2023): 88–94. http://dx.doi.org/10.31857/s2686953522600714.

Full text

Abstract:

For the first time, the kinetics of the process of butyl lactate production by the interaction of ammonium lactate with n-butanol in the presence of water in the temperature range of 130–170°C in a closed system was studied as one of the stages of a new complex technology for the production of lactic acid and polylactide. The flow diagram of the process has been established. For the first time, a kinetic model of ammonium lactate esterification with n-butanol was proposed, considering the side formation of lactamide and the catalysis of esterification due to the acidity of lactic acid. The dev

APA, Harvard, Vancouver, ISO, and other styles

11

Putri, Qodria Utami, Diah Augustin, and Hasanudin Hasanudin. "Kinetika Esterifikasi Asam Lemak Bebas dari Sludge Industri Crude Palm Oil (CPO) Menggunakan Katalis Komposit Montmorillonite/Karbon Tersulfonasi dari Tetes Tebu." ALCHEMY Jurnal Penelitian Kimia 18, no. 1 (2022): 48. http://dx.doi.org/10.20961/alchemy.18.1.50470.48-57.

Full text

Abstract:

Kinetika esterifikasi asam lemak bebas dari <em>sludge</em> CPO telah dilakukan dengan pereaksi etanol dan menggunakan katalis komposit <em>montmorillonite</em>/karbon tersulfonasi dari tetes tebu. Esterifikasi dilakukan dengan memvariasikan temperatur (60, 70, dan 80 <sup>o</sup>C) dan rasio mol antara etanol dan asam lemak bebas (10, 13, 16, 19, dan 22). Hasil penelitian menunjukan bahwa semakin tinggi temperatur, akan meningkatkan laju reaksi esterifikasi, konstanta laju reaksi dan konstanta kesetimbangan reaksi esterifikasi asam lemak bebas. Hal ini menu

APA, Harvard, Vancouver, ISO, and other styles

12

Dong, Wanglai, Lei Chen, Hanzhao Yan, Zijie Zhang, and Zheng Zhou. "Thermodynamic and Kinetic Study on the Catalysis of Isobornyl Acetate by a Cation Exchange Resin an Intensified Fixed-Bed Reactor." Revista de Chimie 72, no. 1 (2021): 111–24. http://dx.doi.org/10.37358/rc.21.1.8408.

Full text

Abstract:

Esterification Thermodynamic and Kinetic on acetic acid with camphene was studied systematically in an intensified fixed bed reactor at 303-323 K with anhydrous NKC-9 resin. The catalyst loading, initial molar ratio, temperature, and catalyst reusability were studied and optimized. The method of UNIFAC was applied to calculate the activity coefficient of each component for correcting the nonideality of the solution. Reaction enthalpy, entropy, and Gibbs free energy were calculated. The kinetics of camphene esterification was studied by pseudo-homogeneous model (PH model), and the fitting effec

APA, Harvard, Vancouver, ISO, and other styles

13

Yao, Xingjun, Zhenxue Wang, Ming Qian, Qiulin Deng, and Peiyong Sun. "Kinetic Aspects of Esterification and Transesterification in Microstructured Reactors." Molecules 29, no. 15 (2024): 3651. http://dx.doi.org/10.3390/molecules29153651.

Full text

Abstract:

Microstructured reactors offer fast chemical engineering transfer and precise microfluidic control, enabling the determination of reactions’ kinetic parameters. This review examines recent advancements in measuring microreaction kinetics. It explores kinetic modeling, reaction mechanisms, and intrinsic kinetic equations pertaining to two types of microreaction: esterification and transesterification reactions involving acids, bases, or biocatalysts. The utilization of a micro packed-bed reactor successfully achieves a harmonious combination of the micro-dispersion state and the reaction kineti

APA, Harvard, Vancouver, ISO, and other styles

14

Grzesik, Mirosław, and Teresa Witczak. "The influence of the catalyst on the kinetics of ethyl metacrylate synthesis." Polish Journal of Chemical Technology 9, no. 1 (2007): 7–9. http://dx.doi.org/10.2478/v10026-007-0003-1.

Full text

Abstract:

The influence of the catalyst on the kinetics of ethyl metacrylate synthesis The synthesis of ethyl metacrylate in the liquid phase was studied. Tungstophosphoric and molybdophosphoric acids, which belong to heteropolyacids group, were used as a catalyst. The chemical compounds from this group are often utilized in the catalysis with regard to their activity and selectivity. The rate equations, reaction rate constants and equilibrium constants have been determined. The reaction order and the kinetic parameters of the kinetic relations were determined by the integral method. All rate equations

APA, Harvard, Vancouver, ISO, and other styles

15

Hazrat, M. A., Mohammad G. Rasul, Mohammad M. K. Khan, et al. "Kinetic Modelling of Esterification and Transesterification Processes for Biodiesel Production Utilising Waste-Based Resource." Catalysts 12, no. 11 (2022): 1472. http://dx.doi.org/10.3390/catal12111472.

Full text

Abstract:

Process optimisation and reaction kinetic model development were carried out for two-stage esterification-transesterification reactions of waste cooking oil (WCO) biodiesel. This study focused on these traditional processes due to their techno-economic feasibility, which is an important factor before deciding on a type of feedstock for industrialisation. Four-factor and two-level face-centred central composite design (CCD) models were used to optimise the process. The kinetic parameters for the esterification and transesterification processes were determined by considering both pseudo-homogene

APA, Harvard, Vancouver, ISO, and other styles

16

Liu, Dian Hua, Ding Ye Fang, Qin Qin Guan, and A. Jian Tao. "Kinetics of Camphene Esterification to Isobornyl Acetate." Advanced Materials Research 233-235 (May 2011): 990–98. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.990.

Full text

Abstract:

The conventional process for isobornyl acetate synthesis from camphene and acetic acid is a batch process. The purpose of this paper is to synthesize isobornyl acetate in continuous process in a fixed bed reactor. The continuous reaction conditions were studied. The experiment was put into practice under the following conditions: 35-45, camphene/acetic acid feed ratio(wt%) from 1 to 2 and space velocity from 0.6 to 1.8 h-1. A kinetic model was developed which describes the experimental data well. A pilot fixed reactor was simulated by using the kinetic model.

APA, Harvard, Vancouver, ISO, and other styles

17

Hussain, Zakir, and Rakesh Kumar. "Kinetics & Simulation of Non-catalytic Esterification." Materials Today: Proceedings 5, no. 9 (2018): 18287–96. http://dx.doi.org/10.1016/j.matpr.2018.06.167.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Pal, Neelam, Akanksha Srivastava, Sudha Agrawal, and J. S. P. Rai. "KINETICS AND MECHANISM OF ESTERIFICATION OF MONOEPOXIES." Materials and Manufacturing Processes 20, no. 2 (2005): 317–27. http://dx.doi.org/10.1081/amp-200042132.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Lemberg, Max, and Gabriele Sadowski. "Predicting the Solvent Effect on Esterification Kinetics." ChemPhysChem 18, no. 15 (2017): 1977–80. http://dx.doi.org/10.1002/cphc.201700507.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

M.M.B., AWAD, A. SALEM A.M., and A. Swelam A. "Kinetics of Catalysed Esterification of Propionic Acid with various Alcohols using Synthetic Cation Exchange Resin." Journal of Indian Chemical Society Vol. 74, Jun 1997 (1997): 467–69. https://doi.org/10.5281/zenodo.5880669.

Full text

Abstract:

Chemistry Department. Faculty of Science. Al-Azhar University, Nasr City, Cairo. Egypt <em>Manuscript received 31 January 1996, accepted </em>9 <em>May 1996</em> Kinetics of esterification of ethyl, 2-propyl and 1-butyl alcohols with propionic acid have been investigated using SBPF (sty rene-butadiene-phenolformaldehyde) synthetic cation exchange resin (in H<sup>+</sup>- form). The experimental data are found to fit a second order bimolecular kinetic equation. The influence of molecular weight, structure of alcohols, amount of catalyst (H<sup>+</sup>-ion), molar ratio of reactants an

APA, Harvard, Vancouver, ISO, and other styles

21

Reyes, Laura, Clémence Nikitine, Léa Vilcocq, and Pascal Fongarland. "Autocatalyzed and heterogeneously catalyzed esterification kinetics of glycolic acid with ethanol." Reaction Chemistry & Engineering 7, no. 2 (2022): 460–74. http://dx.doi.org/10.1039/d1re00418b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Yingwei, Guo, Chen Xuedan, Yan Shiting, et al. "Efficient and Reusable Silica Gel Supported Metal Ionic Liquid Catalysts for Palmitic Acid Esterification to Biodiesel." Journal of the chemical society of pakistan 43, no. 01 (2021): 1–13. http://dx.doi.org/10.52568/000001.

Full text

Abstract:

A series of silica gel (SG) supported metal ionic liquid catalysts (x[Bmim]Cl-CrCl3/SG) were synthesized and exploited for the esterification of palmitic acid (PA) with methanol (ML) to produce biodiesel efficiently. The 10%[Bmim]Cl-CrCl3/SG catalyst with high surface area and desirable acidity exhibited the best catalytic performance and reusability after six consecutive running cycles. Based on the response surface analysis, the optimal reaction conditions were obtained as follows: methanol/acid mole ratio = 11:1 mol/mol, catalyst amount = 5.3 wt%, reaction time = 65 min, as well as reaction

APA, Harvard, Vancouver, ISO, and other styles

23

Guo Yingwei, Guo Yingwei, Chen Xuedan Chen Xuedan, Yan Shiting Yan Shiting, Zhang Zhengliang Zhang Zhengliang, Chen Yuqin Chen Yuqin, and Zheng Lina Zhu Guangqi and Han Xiaoxiang Zheng Lina Zhu Guangqi and Han Xiaoxiang. "Efficient and Reusable Silica Gel Supported Metal Ionic Liquid Catalysts for Palmitic Acid Esterification to Biodiesel." Journal of the chemical society of pakistan 43, no. 1 (2021): 1. http://dx.doi.org/10.52568/000555.

Full text

Abstract:

A series of silica gel (SG) supported metal ionic liquid catalysts (x[Bmim]Cl-CrCl3/SG) were synthesized and exploited for the esterification of palmitic acid (PA) with methanol (ML) to produce biodiesel efficiently. The 10%[Bmim]Cl-CrCl3/SG catalyst with high surface area and desirable acidity exhibited the best catalytic performance and reusability after six consecutive running cycles. Based on the response surface analysis, the optimal reaction conditions were obtained as follows: methanol/acid mole ratio = 11:1 mol/mol, catalyst amount = 5.3 wt%, reaction time = 65 min, as well as reaction

APA, Harvard, Vancouver, ISO, and other styles

24

Guo Yingwei, Guo Yingwei, Chen Xuedan Chen Xuedan, Yan Shiting Yan Shiting, Zhang Zhengliang Zhang Zhengliang, Chen Yuqin Chen Yuqin, and Zheng Lina Zhu Guangqi and Han Xiaoxiang Zheng Lina Zhu Guangqi and Han Xiaoxiang. "Efficient and Reusable Silica Gel Supported Metal Ionic Liquid Catalysts for Palmitic Acid Esterification to Biodiesel." Journal of the chemical society of pakistan 43, no. 1 (2021): 1. http://dx.doi.org/10.52568/000555/jcsp/43.01.2021.

Full text

Abstract:

A series of silica gel (SG) supported metal ionic liquid catalysts (x[Bmim]Cl-CrCl3/SG) were synthesized and exploited for the esterification of palmitic acid (PA) with methanol (ML) to produce biodiesel efficiently. The 10%[Bmim]Cl-CrCl3/SG catalyst with high surface area and desirable acidity exhibited the best catalytic performance and reusability after six consecutive running cycles. Based on the response surface analysis, the optimal reaction conditions were obtained as follows: methanol/acid mole ratio = 11:1 mol/mol, catalyst amount = 5.3 wt%, reaction time = 65 min, as well as reaction

APA, Harvard, Vancouver, ISO, and other styles

25

Guo Yingwei, Guo Yingwei, Chen Xuedan Chen Xuedan, Yan Shiting Yan Shiting, Zhang Zhengliang Zhang Zhengliang, Chen Yuqin Chen Yuqin, and Zheng Lina Zhu Guangqi and Han Xiaoxiang Zheng Lina Zhu Guangqi and Han Xiaoxiang. "Efficient and Reusable Silica Gel Supported Metal Ionic Liquid Catalysts for Palmitic Acid Esterification to Biodiesel." Journal of the chemical society of pakistan 43, no. 1 (2021): 1. http://dx.doi.org/10.52568/000014.

Full text

Abstract:

A series of silica gel (SG) supported metal ionic liquid catalysts (x[Bmim]Cl-CrCl3/SG) were synthesized and exploited for the esterification of palmitic acid (PA) with methanol (ML) to produce biodiesel efficiently. The 10%[Bmim]Cl-CrCl3/SG catalyst with high surface area and desirable acidity exhibited the best catalytic performance and reusability after six consecutive running cycles. Based on the response surface analysis, the optimal reaction conditions were obtained as follows: methanol/acid mole ratio = 11:1 mol/mol, catalyst amount = 5.3 wt%, reaction time = 65 min, as well as reaction

APA, Harvard, Vancouver, ISO, and other styles

26

Alvarez Serafini, Mariana Soledad, and Gabriela Marta Tonetto. "Synthesis of Fatty Acid Methyl Esters from Pomace Oil Catalyzed by Zinc Stearate: A Kinetic Study of the Transesterification and Esterification Reactions." Catalysts 9, no. 12 (2019): 978. http://dx.doi.org/10.3390/catal9120978.

Full text

Abstract:

In this work, the simultaneous transesterification and esterification reactions of olive pomace oil with methanol catalyzed by zinc stearate were studied. This catalyst is a crystalline solid at room temperature, but it is soluble in the reaction medium at reaction temperature. Zinc stearate has surfactant properties that cause the formation of an emulsion in the reaction system. The stability of the emulsion formed in the oil–methanol–catalyst system was compared to that in the FAME (fatty acid methyl esters)–methanol–catalyst system. It was observed that the emulsion formed in the presence o

APA, Harvard, Vancouver, ISO, and other styles

27

Abubakar, Abdulhalim Musa, Haruna Mavakumba Kefas, Yusufu Luka, and Jimzibea Jehu Kawuwa. "Revolutionizing Biodiesel Synthesis: Kinetic and Thermodynamic Insights with Carbonized Doum-Shell Catalyst." Trends in Ecological and Indoor Environmental Engineering 2, no. 2 (2024): 11–23. http://dx.doi.org/10.62622/teiee.024.2.2.11-23.

Full text

Abstract:

Background: Conventional methods of biodiesel (FAME) synthesis often involve transesterification processes that are catalysed by homogeneous catalysts, which present challenges in terms of catalyst recovery, environmental impact, and production cost. Heterogeneous catalysts, particularly those derived from agricultural waste, have emerged as promising alternatives due to their reusability, environmental friendliness, and cost-effectiveness. Objectives: The study aims to bridge gaps by providing a comprehensive kinetic analysis of biodiesel production using a synthesized and novel, doum-shell c

APA, Harvard, Vancouver, ISO, and other styles

28

Kalakuntala, Raju, Mallaiah Mekala, Suman Chirra, Venkatathri Narayanan, Vighneswara Rao Kakara, and Srinath Suranani. "Preparation of Ti Material Supported SBA-15 Functionalized with Sulfonic Acid Environmental Friendly Catalyst: Application for Esterification Process." Journal of Nanomaterials 2022 (February 9, 2022): 1–8. http://dx.doi.org/10.1155/2022/6712464.

Full text

Abstract:

Kinetics of catalytic esterification between propionic acid and n-butanol has been studied in a batch reactor by using a Ti-supported SBA-15 catalyst with sulfonic acid. The synthesized catalyst is used to test the efficacy of catalyst for esterification reaction. The SBA-15 acidity is tied to incorporation of Ti and -SO3H groups through and the use of Si/Ti with Si/S molar ratios. The results are mesoporous materials with a typical hexagonal structure of the Ti SBA-15 and wide areas and high pore diameters that are operated with sulfonic groups. The addition of SBA to Ti leads mainly to catal

APA, Harvard, Vancouver, ISO, and other styles

29

C., S. Shende, and V. Chavan P. "Esterification of phthalic anhydride with n-butanol using homogeneous catalysts." Journal of Indian Chemical Society Vol. 91, Jul 2014 (2014): 1355–59. https://doi.org/10.5281/zenodo.5726568.

Full text

Abstract:

Chemical Engineering Department, Bharati Vidyapeeth Deemed University College of Engineering, Pune-411 043, Maharashtra, India <em>E-mail </em>: chetansshende@gmail.com, pvchavan@bvucoep.edu.in Fax : 91-20-24372998 <em>Manuscript received online 18 February 2014, revised 20 February 2014, accepted 27 February 2014</em> The kinetics of esterification of phthalic anhydride (PAN) with n-butanol (BuOH) has been investigated using para-toluene sulphonic acid (<em>p</em>-TSA) and methane sulphonic acid (MSA) as the catalysts. The effect of various parameters such as temperature, catalyst concentrati

APA, Harvard, Vancouver, ISO, and other styles

30

Magura, Miroslav, Ján Vojtko, and Ján Ilavský. "Kinetics of esterification of monoisopropylphenols with phosphoryl trichloride." Collection of Czechoslovak Chemical Communications 54, no. 5 (1989): 1311–17. http://dx.doi.org/10.1135/cccc19891311.

Full text

Abstract:

The kinetics of liquid-phase isothermal esterification of POCl3 with 2-isopropylphenol and 4-isopropylphenol have been studied within the temperature intervals of 110 to 130 and 90 to 110 °C, respectively. The rate constants and activation energies of the individual steps of this three-step reaction have been calculated from the values measured. The reaction rates of the two isomers markedly differ: at 110 °C 4-isopropylphenol reacts faster by the factors of about 7 and 20 for k1 and k3, respectively. This finding can be utilized in preparation of mixed triaryl phosphates, since the alkylation

APA, Harvard, Vancouver, ISO, and other styles

31

Magura, Miroslav, Ján Vojtko, and Ján Ilavský. "Kinetics of esterification of diisopropylphenols with phosphoryl trichloride." Collection of Czechoslovak Chemical Communications 54, no. 8 (1989): 2099–104. http://dx.doi.org/10.1135/cccc19892099.

Full text

Abstract:

The title liquid-phase isothermal esterification kinetics have been measured in the temperature intervals of 110-125 and 110-160 °C for 2,4- and 2,6-diisopropylphenols, resp. The values measured have been used to calculate the rate constants of the respective three steps and to determine the activation energies. 2,6-Diisopropylphenol has been found to react only to the first degree, and the rate constants of the other two reaction steps (k2, k3) were only calculated from the differential equations given by means of a computer.

APA, Harvard, Vancouver, ISO, and other styles

32

Changi, Shujauddin, Tanawan Pinnarat, and Phillip E. Savage. "Modeling Hydrolysis and Esterification Kinetics for Biofuel Processes." Industrial & Engineering Chemistry Research 50, no. 6 (2011): 3206–11. http://dx.doi.org/10.1021/ie1023047.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Patil, T. A., T. K. Sen, and S. Chattopadhyay. "Production kinetics of the esterification of a polyol." Journal of Synthetic Lubrication 19, no. 2 (2002): 119–29. http://dx.doi.org/10.1002/jsl.3000190204.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Marty, A., W. Chulalaksananukul, R. M. Willemot, and J. S. Condoret. "Kinetics of lipase-catalyzed esterification in supercritical CO2." Biotechnology and Bioengineering 39, no. 3 (1992): 273–80. http://dx.doi.org/10.1002/bit.260390304.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Alcantara, A., F. J. Lopez-Gimenez, and M. P. Dorado. "Universal Kinetic Model to Simulate Two-Step Biodiesel Production from Vegetable Oil." Energies 13, no. 11 (2020): 2994. http://dx.doi.org/10.3390/en13112994.

Full text

Abstract:

To date, to simulate biodiesel production, kinetic models from different authors have been provided, each one usually applied to the use of a specific vegetable oil and experimental conditions. Models, which may include esterification, besides transesterification simulation, were validated with their own experimental conditions and raw material. Moreover, information about the intermediate reaction steps, besides catalyst concentration variation, is either rare or nonexistent. Here, in this work, a universal mathematical model comprising the chemical kinetics of a two-step (esterification and

APA, Harvard, Vancouver, ISO, and other styles

36

Birdsall, A. W., C. A. Zentner, and M. J. Elrod. "Study of the kinetics and equilibria of the oligomerization reactions of 2-methylglyceric acid." Atmospheric Chemistry and Physics Discussions 12, no. 11 (2012): 30039–80. http://dx.doi.org/10.5194/acpd-12-30039-2012.

Full text

Abstract:

Abstract. The presence of a variety of chemical species related to the gaseous precursor isoprene in ambient secondary organic aerosol (SOA) has stimulated investigations of the nature of SOA-phase chemical processing. Recent work has demonstrated that 2-methylglyceric acid (2-MG) is an important isoprene-derived ambient SOA component and atmospheric chamber experiments have suggested that 2-MG may exist in oligomeric form (as oligoesters) under conditions of low SOA water content. In order to better understand the thermodynamic and kinetic parameters of such oligomerization reactions, nuclear

APA, Harvard, Vancouver, ISO, and other styles

37

Birdsall, A. W., C. A. Zentner, and M. J. Elrod. "Study of the kinetics and equilibria of the oligomerization reactions of 2-methylglyceric acid." Atmospheric Chemistry and Physics 13, no. 6 (2013): 3097–109. http://dx.doi.org/10.5194/acp-13-3097-2013.

Full text

Abstract:

Abstract. The presence of a variety of chemical species related to the gaseous precursor isoprene in ambient secondary organic aerosol (SOA) has stimulated investigations of the nature of SOA-phase chemical processing. Recent work has demonstrated that 2-methylglyceric acid (2-MG) is an important isoprene-derived ambient SOA component and atmospheric chamber experiments have suggested that 2-MG may exist in oligomeric form (as oligoesters) under conditions of low SOA water content. In order to better understand the thermodynamic and kinetic parameters of such oligomerization reactions, nuclear

APA, Harvard, Vancouver, ISO, and other styles

38

Cao, Ke Guang, Chun Liang Xia, and Zhong Wei Wang. "Kinetic Study of the Esterification Reaction of Hydroxymethyl(phenyl)phosphinic Acid and Ethylene Glycol." Advanced Materials Research 396-398 (November 2011): 872–75. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.872.

Full text

Abstract:

The kinetics of the esterification reaction of hydroxymethyl(phenyl)phosphinic acid (HMPPA) with Ethylene Glycol (EG) was studied. The reaction was carried out using benzene as a water carrying agent, and the reactant concentration was determined by titration of NaOH solution. The reaction mechanism was explained. Reaction time and reaction temperature were investigated to find their effect on the reaction. The kinetic model of the apparent reaction was built. It was found that the apparent reaction is a second order reaction, and the activation energy is 41.57 kJ/mol.

APA, Harvard, Vancouver, ISO, and other styles

39

Joshi, Anup S., Niloofar Alipourasiabi, Keerthi Vinnakota, Maria R. Coleman, and Joseph G. Lawrence. "Improved polymerization and depolymerization kinetics of poly(ethylene terephthalate) by co-polymerization with 2,5-furandicarboxylic acid." RSC Advances 11, no. 38 (2021): 23506–18. http://dx.doi.org/10.1039/d1ra04359e.

Full text

Abstract:

Incorporation of the bio-based 2,5-furandicarboxylic acid (FDCA) in poly(ethylene terephthalate) as a copolymer (PETF) improves esterification and depolymerization kinetics due to higher solubility and acidity of FDCA in the reaction media.

APA, Harvard, Vancouver, ISO, and other styles

40

Lim, Riky, Deog-Keun Kim, and Jin-Suk Lee. "Reutealis Trisperma Oil Esterification: Optimization and Kinetic Study." Energies 13, no. 6 (2020): 1513. http://dx.doi.org/10.3390/en13061513.

Full text

Abstract:

Reutealis trisperma, due to its high kernel-oil yield (±50%) and long productivity (±70 years), is considered to be a promising feedstock for biodiesel production. In addition, this plant, which can thrive on marginal lands, is classified as a non-edible oil since it contains a toxin known as eleostearic acid. The present study aimed to optimize the esterification step in biodiesel production from R.trisperma oil catalyzed using sulfonic ion exchange resin Lewatit K2640. The optimization step was performed using a response surface methodology through the incorporation of a central composite de

APA, Harvard, Vancouver, ISO, and other styles

41

Dunshea, F. R., A. W. Bell, and T. E. Trigg. "Non-esterified fatty acid and glycerol kinetics and fatty acid re-esterification in goats during early lactation." British Journal of Nutrition 64, no. 1 (1990): 133–45. http://dx.doi.org/10.1079/bjn19900016.

Full text

Abstract:

Non-esterified fatty acid (NEFA) and glycerol kinetics were studied in lactating goats to gain insight into the mechanisms by which animals in early lactation can initially mobilize and later replenish body fat reserves. Kinetic measurements were made at days 10, 38 and 76 post-partum in ten multiparous lactating does. Plasma NEFA concentrations and NEFA entry rate decreased as lactation advanced, being significantly higher at day 10 than at either days 38 or 76 of lactation. Both plasma NEFA concentrations and NEFA entry rate were negatively correlated with calculated energy balance. In contr

APA, Harvard, Vancouver, ISO, and other styles

42

Poerwadi, Bambang, Bambang Ismuyanto, Ahmad Ridwan Rosyadi, and Ayu Indah Wibowo. "Microwave Assisted Transesterification Reaction Kinetics of Biodiesel from Jatropha Oil." Rekayasa Bahan Alam dan Energi Berkelanjutan 3, no. 1 (2019): 6–11. http://dx.doi.org/10.21776/ub.rbaet.2019.003.01.02.

Full text

Abstract:

Biodiesel has become an important alternative green fuel to diminish the use of fossil fuel. In this paper, biodiesel was produced by microwave assisted transesterification of Jatropha curcas oil. Transesterification was varied in temperature of 45-65oC and time of 2-6 minutes. Ratio of methanol and oil was fixed as 7.5:1, while the KOH concentration was 1.5% from the total mass of oil and methanol. Conversion of Jatropha oil into biodiesel was evaluated by analyzing the concentration of produced methyl ester using GC-FID. In this study, reaction rate constant and activation energy of microwav

APA, Harvard, Vancouver, ISO, and other styles

43

Zulkeflee, Siti Asyura, Suhairi Abd Sata, and Norashid Aziz. "Kinetic Model with Effect of Water Content for Enzyme-Catalyzed Citronellyl Laurate Esterification Process." Applied Mechanics and Materials 284-287 (January 2013): 423–28. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.423.

Full text

Abstract:

A kinetic model with effect of water content for enzyme-catalyzed citronellyl laurate was developed. These models incorporate the combined influences of established kinetics model with the function model on the effect of initial water content with kinetic parameters. The model development was carried out by performing a linear and nonlinear regression based on the behavior of the kinetic parameter profiles and validated with experimental data. Using the developed models, the influence of water content towards the enzyme-catalyzed initial rate of reaction was theoretically explained. It has bee

APA, Harvard, Vancouver, ISO, and other styles

44

Demidova, Yuliya V., and Pavel A. Demidov. "KINETICS OF THERMAL ESTERIFICATION OF STEARIC ACID WITH TRIETHANOLAMINE." Bulletin of the Saint Petersburg State Institute of Technology (Technical University) 68 (2024): 64–67. http://dx.doi.org/10.36807/1998-9849-2024-68-94-64-67.

Full text

Abstract:

There has been explored the process of obtaining esteramine from triethanolamine and stearic acid, the first stage of estequate production. The esterification of stearic acid with triethanolamine reaction kinetics has been studied in the temperature range of 125-164 oC. The reaction mixture components concentrations influence on the reaction rate has been established

APA, Harvard, Vancouver, ISO, and other styles

45

Murni, Yuniwati, Kusmartono Bambang, Yusuf Muhammad, and Yoga Raditya. "REACTION KINETICS OF ACETIC ACID WITH ETHANOL TO ETHYL ACETATE WITH SULFURIC ACID CATALYST." Engineering and Technology Journal 08, no. 06 (2023): 2327–33. https://doi.org/10.5281/zenodo.8046741.

Full text

Abstract:

Ethyl acetate is an ester of ethanol and acetic acid. This compound is a colorless liquid with a characteristic odor. Ethyl acetate is widely used as a solvent because of its high solubility. The manufacture of ethyl acetate (ethyl ester) is referred to as the esterification process. This esterification reaction is an exothermic reaction, is reversible and generally runs very slowly so it requires a catalyst to obtain maximum ester. Domestic demand for ethyl acetate is increasing, while production in Indonesia is still lacking. Reactor design requires a reaction mechanism and kinetic data in t

APA, Harvard, Vancouver, ISO, and other styles

46

Minter, David E., and Mark C. Villarreal. "The esterification of trifluoroacetic acid: An NMR kinetics experiment." Journal of Chemical Education 62, no. 10 (1985): 911. http://dx.doi.org/10.1021/ed062p911.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Vahteristo, Kari, Sylvie Maury, Arto Laari, Antti Solonen, Heikki Haario, and Salme Koskimies. "Kinetics of Neopentyl Glycol Esterification with Different Carboxylic Acids." Industrial & Engineering Chemistry Research 48, no. 13 (2009): 6237–47. http://dx.doi.org/10.1021/ie801920m.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Mazzotti, Marco, Bernardo Neri, Davino Gelosa, Alexey Kruglov, and Massimo Morbidelli. "Kinetics of Liquid-Phase Esterification Catalyzed by Acidic Resins." Industrial & Engineering Chemistry Research 36, no. 1 (1997): 3–10. http://dx.doi.org/10.1021/ie960450t.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Ma, Xifeng, Ranran Shi, Bin Zhang, and Bing Yan. "Kinetics of Resin-Supported Mitsunobu Esterification and Etherification Reactions." Journal of Combinatorial Chemistry 11, no. 3 (2009): 438–45. http://dx.doi.org/10.1021/cc900004m.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Pospíšil, Rudolf, Tomáš Sommer, Martin Zapletal, Jiří Krupka, and Jiří Trejbal. "Influence of non-ideal behavior on esterification kinetics modeling." Reaction Kinetics, Mechanisms and Catalysis 130, no. 2 (2020): 617–32. http://dx.doi.org/10.1007/s11144-020-01796-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!