New mathematical modeling of temperature-based properties of ionic liquids mixture: Comparison between semi-empirical equation and equation of state

Mokhtari, Abdelrhani; Bagheri, Hamidreza; Ghazvini, Mahdieh; Ghader, Sattar

doi:10.1016/j.cherd.2021.10.039

Cited by 15 publications

(3 citation statements)

References 154 publications

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“…Knowing the solubility of drugs in scCO 2 is crucial for evaluating the feasibility of separation methods based on supercritical fluids and determining the optimum operational conditions. − Many models have been reported to mathematically represent the solubility behavior. − In this study, various semiempirical models were used to correlate the experimental solubility of alprazolam in scCO 2 . In the case of the binary system (alprazolam/scCO 2 ), the following correlations were considered: where a 0 – a 2 are the adjustable parameters of correlations.…”

Section: Laboratory Sectionmentioning

confidence: 99%

Solubility Measurement and Correlation of Alprazolam in Carbon Dioxide with/without Ethanol at Temperatures from 308 to 338 K and Pressures from 120 to 300 bar

Sajadian,

Bagheri,

Gurikov

et al. 2024

J. Chem. Eng. Data

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This research investigated the solubility of alprazolam in supercritical carbon dioxide (scCO 2 ) with the addition of ethanol as a cosolvent. The solubility was examined at various pressures (ranging from 120 to 300 bar) and temperatures (ranging from 308 to 338 K). The solubility of alprazolam in scCO 2 ranged from 0.027 × 10 −4 to 0.632 × 10 −4 . When ethanol was used as a cosolvent, the solubility increased to a range of 0.157 × 10 −4 to 1.660 × 10 −4 (with 1 mol % ethanol) and 0.449 × 10 −4 to 3.167 × 10 −4 (with 3 mol % ethanol). Under the specified operating parameters, the highest solubility of alprazolam was achieved in the ternary system (with 3 mol % ethanol) at 120 bar and 338 K. This solubility was 16.63 times higher than when using pure scCO 2 under the same circumstances. Several semiempirical correlations were used to compute the solubility of alprazolam in supercritical carbon dioxide. These models yielded similar average absolute relative deviations ranging from 7.0 to 8.40%. The findings demonstrated the superiority of the Kumar−Johnston model in binary systems (with an average absolute relative deviation of 7.0%) and the Garlapati−Madras model in ternary systems (with an average absolute relative deviation of 6.19%) compared to alternative models.

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Section: Laboratory Sectionmentioning

confidence: 99%

Solubility Measurement and Correlation of Alprazolam in Carbon Dioxide with/without Ethanol at Temperatures from 308 to 338 K and Pressures from 120 to 300 bar

Sajadian,

Bagheri,

Gurikov

et al. 2024

J. Chem. Eng. Data

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“…Integer Programming (IP) has been widely used for modeling of scheduling problems where these problems are wellstudied in operations research literature. The objective would be the minimization of some forms of cost, such as completion time, tardiness, makespan, or it can be the maximization of some form of benefit, such as profit, earliness, or number of jobs done by due date or even target-defense and chemical ionic properties of a mixture (Belotti, 2013;Taha, 2013;Sattarkhan, 2023;Pourghorban et al, 2022;Mokhtari et. Al, 2022).…”

Section: Literature Reviewmentioning

confidence: 99%

A Monte Carlo simulation approach to the gap-time relationship in solving scheduling problem

Toragay

Pouya

2023

Journal of Turkish Operations Management

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This article presents a study on the job shop problem, a combinatorial optimization problem that models scheduling and resource allocation in industrial settings. The article aims to investigate the relationship between optimality gap and required computational resources, considering various optimality gap levels that are applicable in real-life situations. The study uses a Monte Carlo simulation to analyze the behavior of solvers in solving different sizes of random-generated scheduling problems. The findings of the study offer insights into the worthiness of reaching an optimal solution versus implementing a near-optimal solution and starting the work. The codes used in the study are accessible on the author's GitHub account.

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“…Mathematical modeling is a key step in a solvent extraction process and it is necessary for designing, controlling and optimization of the process [26][27][28][29]. Thus, an appropriate model is necessary for prediction a solute distribution coefficient and thermodynamic equilibrium constant of the extraction reaction [30].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation and Thermodynamic Modeling of Zn+2 and Ni+2 Extraction from Zn Plant Residue using D2EHPA

Mohammadzadeh,

Bagheri,

Ghader

2023

IJE

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Zinc plant filter cake contains valuable metals that can be reused as a source for obtaining these metals. This study describes an experimental two stage study on the extraction of zinc and nickel from waste zinc filter cake which includes acid leaching of zinc filter cake followed by organic phase aided extraction of metals from the leaching solution. To determine the optimum leaching condition a comprehensive study of the recovery of chemical elements from spent plant residues was experimentally studied at different levels of acid concentrations at different temperatures while measuring chemical elements concentration with respect to time. Experimental results showed that 99% recovery of Ni 2+ , Zn 2+ and 89% recovery of Pb 2+ can be achieved at following optimum conditions: 2M nitric acid, T= 358.15 K after 1.5 h of acid leaching at S/L=1/10. Then, the extraction of Zn 2+ , Ni 2+ , and Pb 2+ was carried out by di-(2-ethylhexyl) phosphoric acid (D2EHPA) that was diluted with kerosene in equal phase ratio and the effect of extractant concentration and pH was studied at T = 298.15 K. Results showed that an increase in pH and extractant concentration can greatly increase zinc and nickel extraction to a maximum achievable amount of 95% and 90 % for Zn 2+ and Ni 2+ , respectively by 25 (v/v%) D2EHPA at pH = 5.5 and organic to aqueous phase ratio (O/A) = 1/1. For modeling of equilibrium concentrations in organic and aqueous phases and activity coefficients calculation, Electrolyte-UNIQUAC-NRF, UNIQUAC-NRF, NRTL and NRTL-based local composition models were used. After that, adjusted parameters were successfully used for calculation of the equilibrium constant of the unknown parameters and the extraction reaction. The obtained results of thermodynamic modeling were in well agreement with the experimental data.

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New mathematical modeling of temperature-based properties of ionic liquids mixture: Comparison between semi-empirical equation and equation of state

Cited by 15 publications

References 154 publications

Solubility Measurement and Correlation of Alprazolam in Carbon Dioxide with/without Ethanol at Temperatures from 308 to 338 K and Pressures from 120 to 300 bar

Solubility Measurement and Correlation of Alprazolam in Carbon Dioxide with/without Ethanol at Temperatures from 308 to 338 K and Pressures from 120 to 300 bar

A Monte Carlo simulation approach to the gap-time relationship in solving scheduling problem

Experimental Investigation and Thermodynamic Modeling of Zn+2 and Ni+2 Extraction from Zn Plant Residue using D2EHPA

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