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- Title
Appraisal of the capacity of natural oils for partitioning of itaconic acid via reactive extraction.
- Authors
Raghuwanshi, Shourabh Singh; Wasewar, Kailas L.; Athankar, Kanti Kumar
- Abstract
BACKGROUND: Owing to the continuous growth of petroleum prices over the last few decades, there has been a renaissance in interest in the large‐scale manufacturing of platform chemicals via the fermentation route. The present work emphasizes the extraction of itaconic acid from an aqueous solution by dissolving reactive tri‐n‐butyl phosphate (TBP) in natural, non‐toxic diluents such as sunflower oil, rice bran oil, and sesame oil. RESULTS: The experimental results were explained in terms of distribution coefficient (Ɗ), extraction efficiency (η%), equilibrium complexation constant (Ke), and loading ratio (ϕ). At the highest concentration of itaconic acid 0.250 mol L−1 and TBP 1.099 mol L−1, the maximum extraction efficiency and distribution coefficient for sunflower oil were obtained, at 88.72% and 7.94%, respectively. The diffusivity (DIA−S) of itaconic acid towards the interface of organic and aqueous phases was obtained as 1.11 × 10−6 cm2 s−1 with the Wilke–Chang equation and 4.40 × 10−7 cm2 s−1 using the Reddy–Doraiswamy relation. The lowest value of solvent‐to‐feed (S/F) proportion was estimated as 6.66, with the minimum number of stages required for counter‐current extraction being ~4. CONCLUSION: In reactive extraction of itaconic acid with TBP, the highest extraction efficiency and distribution coefficient was attained with sunflower oil, followed by rice bran oil and sesame oil. Higher concentrations of itaconic acid (0.250 mol L−1) and TBP (1.099 mol L−1) are suitable combinations for all the natural diluents. Diffusivity values revealed the extent of diffusion of itaconic acid in the solvent phase and strongly depended on the density and viscosity of the solvent. The experimental results could be utilized to design a continuous extraction column. © 2023 Society of Chemical Industry.
- Subjects
SOCIETY of Chemical Industry (Great Britain); ITACONIC acid; RICE oil; SESAME oil; SUNFLOWER seed oil; PETROLEUM sales &; prices; ARABINOXYLANS
- Publication
Journal of Chemical Technology & Biotechnology, 2024, Vol 99, Issue 1, p270
- ISSN
0268-2575
- Publication type
Article
- DOI
10.1002/jctb.7535