Partitioning of butanol and other fermentation broth components in phosphonium and ammonium-based ionic liquids and their toxicity to solventogenic clostridia

Cascon, Hercules R.; Choudhari, Santosh K.; Nisola, Grace M.; Vivas, Eleazer L.; Lee, Dong-Ju; Chung, Wook–Jin

doi:10.1016/j.seppur.2011.01.041

Cited by 56 publications

(29 citation statements)

References 41 publications

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“…The butanol extraction capacity of [P 6,6,6,14 ][dca] was determined through the partition coefficient (K P ) by an elsewhere reported method (19). K P was calculated by Eq.…”

Section: Determination Of 1-butanol Partition Coefficientmentioning

confidence: 99%

Separation Performance and Stability of PVDF-co-HFP/Alkylphosphonium Dicyanamide Ionic Liquid Gel-Based Membrane in Pervaporative Separation of 1-Butanol

Cascon

Choudhary

2013

Separation Science and Technology

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In this study, a membrane prepared by gelling trihexyl(tetradecyl)phosphonium dicyanamide ionic liquid (IL) with poly(vinylidene fluoride-co-hexafluoropropylene) copolymer is tested for performance and stability in pervaporative separation of 1-butanol. Feed concentration and temperature affected separation performance mainly through plasticizing and swelling effects in the membrane which promoted liquid-like transport behavior. Microscale IL-inpolymer networks formed within the gel matrix where the neat IL possibly functioned as conventional liquid membrane. IL gelling has significantly improved the membrane operational lifetime to $80 h, a significant improvement on the $10 h shown by a simple supported IL membrane counterpart. The instability was consequent to polymer-IL incompatibility and so further investigations are underway to resolve this issue.

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“…The butanol extraction capacity of [P 6,6,6,14 ][dca] was determined through the partition coefficient (K P ) by an elsewhere reported method (19). K P was calculated by Eq.…”

Section: Determination Of 1-butanol Partition Coefficientmentioning

confidence: 99%

Separation Performance and Stability of PVDF-co-HFP/Alkylphosphonium Dicyanamide Ionic Liquid Gel-Based Membrane in Pervaporative Separation of 1-Butanol

Cascon

Choudhary

2013

Separation Science and Technology

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“…The low vapor pressure of ionic liquids has made them attractive materials for liquid–liquid extraction processes, and they have been examined in the context of n ‐butanol ISPR . However, biocompatibility remains an ongoing concern, as many ionic liquids are toxic to microorganisms, and extremely high viscosities make handling of ionic liquids problematic. Recent work has focused on polyionic liquids (PILs) that can provide favorable solute affinities along with desirable solid‐state properties .…”

Section: Introductionmentioning

confidence: 99%

Using poly(vinyldodecylimidazolium bromide) for the in‐situ product recovery of n‐butanol

Vincent

Parent

2019

Biotechnology Progress

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The mitigation of end-product inhibition during the biosynthesis of n-butanol is demonstrated for an in-situ product recovery (ISPR) system employing a poly(ionic liquid) (PIL) absorbent. The thermodynamic affinity of poly(vinyldodecylimidazolium bromide) [P(VC 12 ImBr)] for n-butanol, acetone and ethanol versus water was measured at conditions experienced in a typical acetone-ethanol-butanol (ABE) fermentation.In addition to providing a high n-butanol partition coefficient (PC = 6.5) and selectivity (α BuOH/water = 46), P(VC 12 ImBr) is shown to be biocompatible with Saccharomyces cerevisiae and Clostridium acetobutylicum. Furthermore, the diffusivity of n-butanol in a hydrated PIL provides absorption rates that support ISPR applications. Using a 5 wt % PIL phase fraction relative to the aqueous phase mass, P(VC 12 ImBr) improved the volumetric productivity of a batch ABE ISPR process by 31% relative to a control fermentation. The concentration of n-butanol in the P(VC 12 ImBr) phase was sufficient to increase the alcohol concentration from 1.5 wt% in the fermentation medium to 25 wt% in the saturated PIL, thereby facilitating downstream n-butanol recovery. K E Y W O R D SABE fermentation, Clostridium acetobutylicum, in-situ product recovery, n-butanol, polyionic liquid

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“…Although phosphonium-based RTILs (PB-RTILs) have been known and synthesized for years, they have been more or less neglected in the literature, mainly in LLE, as compared to their imidazolium-or pyrrolidinium-based counterparts [19,20]. PB-RTILs are made of tetraalkylphosphonium cations with different anions and have some additional advantages compared to the nitrogen-based RTILs (NB-RTILs), such as very high thermal and chemical stability, higher solvation properties and they are cheaper [18].…”

Section: Introductionmentioning

confidence: 99%

Development of a dispersive liquid-liquid microextraction technique for the analysis of aryloxyphenoxy-propionate herbicides in soy-based foods

Lubomirsky

Padró

Reta

2016

Microchemical Journal

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Partitioning of butanol and other fermentation broth components in phosphonium and ammonium-based ionic liquids and their toxicity to solventogenic clostridia

Cited by 56 publications

References 41 publications

Separation Performance and Stability of PVDF-co-HFP/Alkylphosphonium Dicyanamide Ionic Liquid Gel-Based Membrane in Pervaporative Separation of 1-Butanol

Separation Performance and Stability of PVDF-co-HFP/Alkylphosphonium Dicyanamide Ionic Liquid Gel-Based Membrane in Pervaporative Separation of 1-Butanol

Using poly(vinyldodecylimidazolium bromide) for the in‐situ product recovery of n‐butanol

Development of a dispersive liquid-liquid microextraction technique for the analysis of aryloxyphenoxy-propionate herbicides in soy-based foods

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