Solvent extraction of lactic acid from aqueous solution

Lazarova, Z.; Peeva, Ludmila

doi:10.1016/0168-1656(94)90122-8

Cited by 36 publications

(29 citation statements)

References 10 publications

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“…Various aspects have been considered, such as the influence of the type and concentration of extractant, 1-15 the nature of the diluent, 4,5,7,8,11,[16][17][18] the composition of the aqueous phase, 3,[5][6][7]10,12,15,17,[19][20][21] the effect of pH, 1-3,6-8,20-23 and the effect of temperature. 1,2,4,13,15,24,25 Tertiary amines and quaternary ammonium salts have been found to be efficient extractants for carboxylic acid recovery.…”

Section: Introductionmentioning

confidence: 99%

Specific Influence of the Modifier (1-Decanol) on the Extraction of Tartaric Acid by Different Extractants

Marinova

Albet

Molinier

et al. 2005

Ind. Eng. Chem. Res.

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The effect of the modifier 1-decanol on the extraction of tartaric acid by the extractants tri-noctylamine (TOA), quaternary ammonium chloride (Aliquat 336), or their mixture in the diluent n-dodecane was studied at different pH values. The effect of the modifier was examined as a function of the initial pH value of the aqueous solution for the three extractants mentioned above. A positive, negative, or no effect of the modifier on the distribution coefficient of tartaric acid was observed in the different cases.

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Section: Introductionmentioning

confidence: 99%

Specific Influence of the Modifier (1-Decanol) on the Extraction of Tartaric Acid by Different Extractants

Marinova

Albet

Molinier

et al. 2005

Ind. Eng. Chem. Res.

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“…tri‐n‐octylamine), quaternary ammonium salts (e.g. Tri(C 8 C 10 )methylammoniumchloride [Aliquat 336]), ester (e.g. tri‐n‐butyl phosphate), or ketone (e.g.…”

Section: State Of Art Production and Alternative Technologiesmentioning

confidence: 99%

Potential and assessment of lactic acid production and isolation - a review

Jantasee

Kienberger

Mungma

et al. 2017

J. Chem. Technol. Biotechnol

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The majority of commodity plastics is made from petroleum-based chemicals. Lactic acid serves as a monomer for the production of the biodegradable polymer polylactic acid (PLA). This paper provides a review on the state of the art production and isolation process for lactic acid. Problems in production and isolation have been identified, the relevant results in optimized production are presented in the first part of the paper. In the second part, a decision matrix is used as a guideline for the discussion on the state of research in the isolation and purification of lactic acid. Mechanical unit operations, mass transfer unit operations, reactive separation techniques, and process combinations are reported in the literature. At the end, an economic evaluation of isolation processes such as conventional precipitation, reactive membrane separation, and reactive distillation are presented.

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“…So far, there have been several strategies for the separation of 1,3‐PD, mainly including vacuum distillation , pervaporation , solvent extraction , separation on ion exchange resins , reactive extraction and aqueous two‐phase extraction . Moreover, the major methods used for lactic acid recovery are distillation , solvent extraction , reactive extraction , liquid membrane extraction , and electrodialysis extraction . All the above separation methods have their own advantages and limitations.…”

Section: Introductionmentioning

confidence: 99%

Two‐step salting‐out extraction of 1,3‐propanediol and lactic acid from the fermentation broth of Klebsiella pneumoniae on biodiesel‐derived crude glycerol

Song

Sun

Wei

et al. 2013

Engineering in Life Sciences

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Crude glycerol is a primary by-product in the biodiesel production process and its large surplus blocks the development of the biodiesel industry. In this study, crude glycerol was used as a substrate to co-produce 1,3-propanediol (1,3-PD) and lactic acid through fermentation of Klebsiella pneumoniae. The final concentrations of 1,3-PD and lactic acid were 62.6 and 33.4 g/L, respectively, and the total mass conversion yield was 55.7%. The two-step salting-out extraction method was adopted for the separation of 1,3-PD and lactic acid from the fermentation broth. In the first step of extraction, the maximal partition coefficient and recovery of 1,3-PD reached 9.81 and 92.4% under the optimal conditions of 30% isopropanol and 30% potassium carbonate. Subsequently, 28% ethanol was added into the salt phase to perform the second salting-out extraction at pH 6.5. The partition coefficient and recovery of lactic acid reached 1.27 and 73.8%, respectively. All cells and most of the proteins (98.5%) were finally removed. The results suggest that crude glycerol can be used as a promising feedstock to co-produce 1,3-PD and lactic acid from fermentation broths, and this could not only reduce the production cost but also promote the further development of the biodiesel industry.

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Solvent extraction of lactic acid from aqueous solution

Cited by 36 publications

References 10 publications

Specific Influence of the Modifier (1-Decanol) on the Extraction of Tartaric Acid by Different Extractants

Specific Influence of the Modifier (1-Decanol) on the Extraction of Tartaric Acid by Different Extractants

Potential and assessment of lactic acid production and isolation - a review

Two‐step salting‐out extraction of 1,3‐propanediol and lactic acid from the fermentation broth of Klebsiella pneumoniae on biodiesel‐derived crude glycerol

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