LSER analysis of reactive extraction of Zn and Cu with bis (2-ethylhexyl) phosphate (HDEHP) in six different diluents

Sharma, Sushmita; Agarwal, Govind Kumar; Dutta, Narendra Nath

doi:10.1080/01496395.2018.1529043

Cited by 3 publications

(3 citation statements)

References 22 publications

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“…Reactive separation is considered a simple, cheapest, and eco-friendly method than other separation methods. , The reactive separation method enhances the productivity in the reactor and reduces the recovery cost in fermentation technology. The researchers have reported the reactive separation to be a more suitable method for the separation of levulinic acid. − Various diluents and extractants can be used to improve the separation efficiency of acid. Trioctylamine (TOA), Aliquat 336, and tri- n -butyl phosphate (TBP) are the primary extractants used to achieve a higher separation efficiency and distribution coefficient in the reactive separation.…”

Section: Introductionmentioning

confidence: 99%

Central Composite Design Approach for Optimization of Levulinic Acid Separation by Reactive Components

Kumar

Shende

Wasewar

2021

Ind. Eng. Chem. Res.

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Separation of levulinic acid from the rejected stream and fermentation broth has become the topic of scientific interest or importance due to its variety of applications. In the present paper, the optimization study is carried out to find the maximum separation efficiency using various independent variables like the initial concentration of levulinic acid, concentration of trioctylamine extractant, temperature, and time. The response surface methodology in combination with central composite design (face-centered) was employed involving 30 experimental runs for the separation of levulinic acid. To understand the effect of independent variables on the separation efficiency and equilibrium constant, various experiments were performed. The optimum condition was observed at 0.5 mol•L −1 as the initial concentration of levulinic acid, 30% trioctylamine as the organic phase at a temperature of 27.5 °C for a shaking time of 4 h, which could lead to a separation efficiency 61.92%, and an equilibrium constant of 4.61 and is in close agreement with the predicted values of 62.23% and 4.61, respectively. The optimized conditions were applied, and three stages in series were designed to achieve 90% recovery of levulinic acid, which could reduce the energy requirement and waste generation and lead to an increase in the separation efficiency of levulinic acid. The obtained results can be used for the recovery of levulinic acid from the rejected stream and fermentation broth.

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Section: Introductionmentioning

confidence: 99%

Central Composite Design Approach for Optimization of Levulinic Acid Separation by Reactive Components

Kumar

Shende

Wasewar

2021

Ind. Eng. Chem. Res.

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“…In recent years, reactive extraction has been shown as an attractive and promising technique for separation of various valuable solutes and for synthesis of various products. Its attractiveness is due to the combination of physical and chemical processes which may enhance the extraction yield of valuable solutes and products [1]. The combination of two processes leads to a higher solute distribution coefficient, a higher extraction efficiency, and allowing transport processes intensification by increasing mass transfer and chemical reactions rates [1][2].…”

Section: ■ Introductionmentioning

confidence: 99%

“…Its attractiveness is due to the combination of physical and chemical processes which may enhance the extraction yield of valuable solutes and products [1]. The combination of two processes leads to a higher solute distribution coefficient, a higher extraction efficiency, and allowing transport processes intensification by increasing mass transfer and chemical reactions rates [1][2]. Reactive extraction is also prized for its simplicity, technical accessibility, novelty, moderate conditions and possibility of utilization of green, cheap and efficient chemicals [3][4].…”

Section: ■ Introductionmentioning

confidence: 99%

Mathematical Modeling of Reactive Extraction of Solute from Slab Solid Material

et al. 2020

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Reactive extraction is gaining higher attention due its wide application in various solute separation processes. Here, a mathematical model of reactive extraction in slab has been proposed. The model was developed by considering simultaneous processes of active compound intra particle diffusion, second order elemental reaction of soluteactive compound, and intra-particle product diffusion. The obtained partial differential equations (PDEs) were solved using Finite Difference Approximation (FDA) method by using realistic parameters. Concentration profile as well as product yield were evaluated as a function of time. As a result, the model proposed here may serve as a basis design for reactive extraction unit. Sensitivity analyses was conducted to inspect the influence of slab thickness, diffusivity and reaction rate constant to the product yield. Eventually, model validation was conducted by comparing the simulation results with analytical solutions for special cases. Validation results showed that the model gave good agreement with the analytical solution.

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Kinetics of facilitated transport of Zn(II) from leach liquor of spent LTS catalyst across bulk liquid membrane

Sharma

Dutta

2020

J IRAN CHEM SOC

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LSER analysis of reactive extraction of Zn and Cu with bis (2-ethylhexyl) phosphate (HDEHP) in six different diluents

Cited by 3 publications

References 22 publications

Central Composite Design Approach for Optimization of Levulinic Acid Separation by Reactive Components

Central Composite Design Approach for Optimization of Levulinic Acid Separation by Reactive Components

Mathematical Modeling of Reactive Extraction of Solute from Slab Solid Material

Kinetics of facilitated transport of Zn(II) from leach liquor of spent LTS catalyst across bulk liquid membrane

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