Process Intensification for Separation of Carboxylic Acids from Fermentation Broths using Reactive Extraction

2008 ◽  
Vol 3 (3) ◽  
pp. 21-28 ◽  
Author(s):  
Sushil Kumar ◽  
◽  
B.V. Babu ◽  
Keyword(s):  
Carboxylic Acids ◽  
Process Intensification ◽  
Reactive Extraction ◽  
Fermentation Broths

scholarly journals Status of the Reactive Extraction as a Method of Separation

2015 ◽  
Vol 2015 ◽  
pp. 1-16 ◽  
Author(s):  
Dipaloy Datta ◽  
Sushil Kumar ◽  
Hasan Uslu
Keyword(s):  
Carboxylic Acids ◽  
Energy Efficient ◽  
State Of The Art ◽  
Reactive Extraction ◽  
The Past ◽  
Efficient Fermentation ◽  
Fermentation Broths ◽  
Fermentation Technology ◽  
Recovery Methods

The prospective function of a novel energy efficient fermentation technology has been getting great attention in the past fifty years due to the quick raise in petroleum costs. Fermentation chemicals are still limited in the modern market in huge part because of trouble in recovery of carboxylic acids. Therefore, it is needed considerable development in the current recovery technology. Carboxylic acids have been used as the majority of fermentation chemicals. This paper presents a state-of-the-art review on the reactive extraction of carboxylic acids from fermentation broths. This paper principally focuses on reactive extraction that is found to be a capable option to the proper recovery methods.

scholarly journals Equilibrium Study on Reactive Extraction of Lactic Acid with Tri-n – Butyl Phosphate in n - Hexane

2013 ◽  
Vol 12 (2) ◽  
pp. 1
Author(s):  
Panut Mulyono ◽  
Anita Pardah
Keyword(s):  
Aqueous Solution ◽  
Lactic Acid ◽  
Ambient Temperature ◽  
Carboxylic Acids ◽  
Distribution Ratio ◽  
Equilibrium Constants ◽  
Reactive Extraction ◽  
Extraction Temperature ◽  
Process Selection ◽  
Initial Concentration

Extraction of carboxylic acids from dilute aqueous solution using traditional solvents such as ketones, alcohols, ethers, and ester is inefficient because the distribution ratio is rather low. Reactive extraction which exploits reversible chemical complexation is an effective separation process for extraction of carboxylic acids from aqueous streams such as fermentation broths and wastewaters. In the extraction process, selection of the solvent is an important aspect to be considered. Considering its solubility in water, cost and availability, tri-n-butyl phosphate (TBP) seems to be an attractive solvent for the extraction of lactic acid from aqueous solution. The purpose of this experiment is to study the equilibrium of the reactive extraction of lactic acid in aqueous solution with TBP in n-hexane. The parameters studied in this experiment were initial concentration of lactic acid in the aqueous phase, TBP concentration in n-hexane phase, and the extraction temperature. The experiments at ambient temperature were carried out using a separatory funnel, while the experiments at other than ambient temperature were carried out using erlenmeyer flask and water bath shaker to adjust the temperature. In this experiment, the initial concentration of lactic acid was varied from 0.1 to 0.5 gmol/dm3. The range of initial TBP concentrations in n-hexane was 0.1 to 1.0 gmol/dm3 and the extraction temperature range was 283 to 313 K. The experimental results showed that the higher the initial concentration of lactic acid in aqueous solution, the higher the distribution ratio for a fixed TBP concentration and extraction temperature. For a fixed initial concentration of lactic acid in aqueous solution and extraction temperature, the distribution ratio of lactic acid is increased by increasing TBP concentration. The overall equilibrium constants (Kpq) for the experiments using TBP concentration ranging from 0.1 to 1.0 gmol/dm3 at the extraction temperature of 293 K are calculated to be 0.0668 to 0.5144. Kpq for the experiments at the temperature ranging from 283 to 313 K at the initial concentration of lactic acid of 0.2 gmol/L are found to be 0.0122 to 0.8856. The Kpq as a function of temperature (T) in K can be expressed as ln Kpq = 10,596/T - 38.08 with sum of square of error of 0.14.

Application of reactive extraction to recovery of carboxylic acids

2001 ◽  
Vol 6 (6) ◽  
pp. 386-394 ◽  
Author(s):  
Yeon Ki Hong ◽  
Won Hi Hong ◽  
Dong Hoon Han
Keyword(s):  
Carboxylic Acids ◽  
Reactive Extraction

The use of membrane based reactive extraction for the recovery of carboxylic acids from thin stillage

2018 ◽  
Vol 206 ◽  
pp. 177-185 ◽  
Author(s):  
Kristien De Sitter ◽  
Linsey Garcia-Gonzalez ◽  
Claudia Matassa ◽  
Lorenzo Bertin ◽  
Heleen De Wever
Keyword(s):  
Carboxylic Acids ◽  
Reactive Extraction ◽  
Thin Stillage
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