Equilibrium and Kinetic Studies on Reactive Extraction of Pyruvic Acid with Trioctylamine in 1-Octanol

2011 ◽  
Vol 50 (23) ◽  
pp. 13518-13525 ◽  
Author(s):  
Mustafa E. Marti ◽  
Turker Gurkan ◽  
L. K. Doraiswamy
Keyword(s):  
Pyruvic Acid ◽  
Kinetic Studies ◽  
Reactive Extraction

Kinetics of Reactive Extraction of Pyruvic Acid Using Tributylamine Dissolved in n-Butyl Acetate

2015 ◽  
Vol 13 (1) ◽  
pp. 63-69 ◽  
Author(s):  
Dharm Pal ◽  
Amit Keshav
Keyword(s):  
Aqueous Solution ◽  
Rate Constant ◽  
Pyruvic Acid ◽  
Butyl Acetate ◽  
Volume Ratio ◽  
Kinetic Studies ◽  
Extraction Process ◽  
Reactive Extraction ◽  
Kinetic Measurements ◽  
Kinetics Of

Abstract Studies have been made on the kinetics accompanied with mass transfer for the pyruvic acid/tributylamine (TBA)/n-butyl acetate system to investigate the effectiveness of reactive extraction for the separation of pyruvic acid from the aqueous solution. In the present work, kinetic studies, needed for the design of a recovery unit, were carried out using aqueous solution of pyruvic acid. TBA (conc. range 0.420–2.099 kmol/m3) dissolved in n-butyl acetate (conc. range 50–90%) was used as an extractant. The effect of reactant concentration, the effect of stirring speed and the effect of phase volume ratio on the extraction process were investigated. The kinetic parameters such as reaction order and rate constant were calculated. Kinetic measurements showed that the reaction is of second order occurring in the diffusion film and was found to be independent of hydrodynamic conditions. Rate constant was evaluated to be $0.419\,{{\rm{m}}^3}{\rm{mo}}{{\rm{l}}^{- 1}}{{\rm{S}}^{- 1}}$ .

Equilibrium & kinetic studies of reactive extraction of trans-aconitic acid using sunflower oil with tri-n-octylamine

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Rajesh Nimmakayala ◽  
Dharm Pal ◽  
Dhananjay Singh ◽  
Abhinesh Kumar Prajapati
Keyword(s):  
Sunflower Oil ◽  
Fermentation Broth ◽  
Kinetic Studies ◽  
Reactive Extraction ◽  
Equilibrium Studies ◽  
Aconitic Acid ◽  
Equilibrium And Kinetics ◽  
Loading Ratio ◽  
Stirred Cell ◽  
Complex Formations

Abstract In order to design an efficient extraction system for the separation of biochemically produced trans-aconitic acid (TAH) from fermentation broth; equilibrium and kinetics of reactive extraction of TAH from aqueous solutions was investigated using tri-n-octylamine (TOA) as an extractant and sunflower oil as a diluent. Through the equilibrium studies stoichiometry (acid, extractant) of complex formations was determined with the help of loading ratio. Formation of (1, 1), (2, 1), & (3, 1) stoichiometry complexes were observed having complexation constants values 179.73 kmol−1 m3, 9512.58 kmol−2 m6, and 614,407.02 kmol−3 m9, respectively. Kinetics experiments were performed in Lewis type stirred cell and results confirmed that reaction between TAH and TOA in sunflower oil fall in regime 1, i.e. slow reaction occurring in bulk organic phase. The overall order of reaction is pseudo first order with rate constant (K mn ) 1.78 × 10−5 (kmol m−3)−0.71 s−1 and physical mass transfer coefficient (K l ) 4.22 × 10−5 m s−1.

Reactive extraction of pyruvic acid using mixed extractants

2016 ◽  
Vol 51 (7) ◽  
pp. 1141-1150 ◽  
Author(s):  
Dharm Pal ◽  
Niraj Thakre ◽  
Awanish Kumar ◽  
Amit Keshav
Keyword(s):  
Pyruvic Acid ◽  
Reactive Extraction

In Vitro Kinetic Studies of the Reaction of Hydralazine and its Acetone Hydrazone with Pyruvic Acid

1988 ◽  
Vol 77 (3) ◽  
pp. 280-283 ◽  
Author(s):  
Masahiro Iwaki ◽  
Taro Ogiso ◽  
Yoshimasa Ito
Keyword(s):  
Pyruvic Acid ◽  
Kinetic Studies

Reactive Extraction of Pyruvic Acid Using Tri-n-octylamine Diluted in Decanol/Kerosene: Equilibrium and Effect of Temperature

2015 ◽  
Vol 60 (3) ◽  
pp. 860-869 ◽  
Author(s):  
Dharm Pal ◽  
Ayush Tripathi ◽  
Arushi Shukla ◽  
Kush R. Gupta ◽  
Amit Keshav
Keyword(s):  
Pyruvic Acid ◽  
Reactive Extraction ◽  
Effect Of Temperature
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