Uptake of Alkanes and Alcohols by Ion-Exchange Resins in Aqueous Solution

Sanemasa, Isao; Nakahara, Misuzu; Zheng, Jin-Zi

doi:10.2116/analsci.19.949

Cited by 7 publications

(19 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…10 The logarithmic relationship between the K and Kow values is plotted in Fig. 2, where our previous data on alkanes (C5 -C9) and alcohols (C4 -C7) 3 own Kow values. That is, a hydrophobic interaction plays an important role in the uptake of these saturated aliphatic compounds by the ion-exchange resins used in this work.…”

Section: Resultsmentioning

confidence: 97%

“…The amount of solute taken up by the resin was found to be directly proportional to the solute concentration in the aqueous solution, as demonstrated in a previous study. 3 Azulene, an isomer of naphthalene, is convenient for visual observations. We examined resin particles (Dowex 1-X4, 20 -50 mesh) before and after uptake runs by a microscope (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…This observation may also support that the uptake mechanism is governed by partition rather than adsorption, because the smaller size resin is favorable for adsorption. 9 For the sake of comparing the relative affinity values of the resin toward each solute, we used a distribution constant (K), defined in a previous paper, 3 as follows:…”

Section: Resultsmentioning

confidence: 99%

“…3 Solutes, except for azulene studied here, were of analytical grade commercially available from Wako Pure Chemical Co., and were used as received. Azulene was supplied by Dr. Shigeru Kikuchi (an organic chemist) of Kumamoto University.…”

Section: Methodsmentioning

confidence: 99%

“…3 The present uptake work is concerned with cycloalkanes (C5 -C8) and bicyclic aromatic compounds (naphthalene, biphenyl, and azulene). Some workers have reported that aromatic species interact more strongly with the resin matrix than aliphatic ions containing an identical number of carbon atoms.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Uptake of Cycloalkanes and Bicyclic Aromatic Compounds by Ion-Exchange Resins from Aqueous Solutions

2005

Self Cite

View full text Add to dashboard Cite

The uptakes of cycloalkanes (C5 -C8) and bicyclic aromatic compounds (naphthalene, biphenyl, and azulene) by both strong acid cation (Dowex 50W-X4 and X8) and strong base anion (Dowex 1-X4 and X8) exchange resins have been studied in aqueous solutions at 25˚C; their distribution constants (K) have been determined. The relationship between the octanol-water partition coefficient and the resin affinity for solutes has been analyzed. The K values of three aromatic compounds were found to be much higher than expected from the octanol-water partition coefficients. This is probably due to the π interaction of aromatic rings with the resin matrix. Microscopic observations revealed that azulene molecules are uniformly distributed inside a resin particle.

show abstract

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Uptake of Cycloalkanes and Bicyclic Aromatic Compounds by Ion-Exchange Resins from Aqueous Solutions

2005

Self Cite

View full text Add to dashboard Cite

show abstract

In situ product recovery of n‐butanol using polymeric resins

Nielsen

Prather

2008

Biotech & Bioengineering

161

137

View full text Add to dashboard Cite

Polymeric resins with high n-butanol adsorption affinities were identified from a candidate pool of commercially available materials representing a wide array of physical and chemical properties. Resin hydrophobicity, which was dictated by the chemical structure of its constituent monomer units, most greatly influenced the resin-aqueous equilibrium partitioning of n-butanol whereas ionic functionalization appeared to have no effect. In general, those materials derived from poly(styrene-co-divinylbenzene) possessed the greatest n-butanol affinity, while the adsorption potential of these resins was limited by their specific surface area. Resins were tested for their ability to serve as effective in situ product recovery (ISPR) devices in the n-butanol fermentation by Clostridium acetobutylicum ATCC 824. In small-scale batch fermentations, the addition of 0.05 kg/L Dowex Optipore SD-2 facilitated achievement of effective n-butanol titers as high as 2.22% (w/v), well above the inhibitory threshold of C. acetobutylicum ATCC 824, and nearly twice that of traditional, single-phase fermentations. Retrieval of n-butanol from resins via thermal treatment was demonstrated with high efficiency and predicted to be economically favorable. Due to its modular nature, the proposed ISPR design exhibits strong potential for compatibility with future n-butanol fermentation efforts.

show abstract

Selective separation of biobutanol from acetone–butanol–ethanol fermentation broth by means of sorption methodology based on a novel macroporous resin

Lin

Jin

et al. 2012

Biotechnology Progress

View full text Add to dashboard Cite

The traditional distillation method for recovery of butanol from fermentation broth is an energy-intensive process. Separation of butanol based on adsorption methodology has advantages in terms of biocompatibility and stability, as well as economy, and therefore gains much attention. However, the application of the commercial adsorbents in the integrated acetone-butanol-ethanol (ABE) fermentation process is restricted due to the low recovery (less than 85%) and the weak capability of enrichment in the eluent (3-4 times). In this study, we investigated the sorption properties of butanol onto three kinds of adsorbents with different polarities developed in our laboratory, that is, XD-41, H-511, and KA-I resin. The sorption behaviors of single component and ABE ternary mixtures presented in the fermentation broths on KA-I resin were investigated. KA-I resin had higher affinity for butanol than for acetone, ethanol, glucose, acetic acid, and butyric acid. Multicomponent ABE sorption on KA-I resin was modeled using a single site extended Langmuir isotherm model. In a desorption study, all the adsorbed components were desorbed in one bed volume of methanol, and the recovery of butanol from KA-I resin was 99.7%. The concentration of butanol in the eluent was increased by a factor of 6.13. In addition, KA-I resin was successfully regenerated by two bed volumes of water. Because of its quick sorption, high sorption capacity, low cost, and ease of desorption and regeneration, KA-I resin exhibits good potential for compatibility with future ABE fermentation coupled with in situ recovery product removal techniques.

show abstract

Uptake of Alkanes and Alcohols by Ion-Exchange Resins in Aqueous Solution

Cited by 7 publications

References 19 publications

Uptake of Cycloalkanes and Bicyclic Aromatic Compounds by Ion-Exchange Resins from Aqueous Solutions

Uptake of Cycloalkanes and Bicyclic Aromatic Compounds by Ion-Exchange Resins from Aqueous Solutions

In situ product recovery of n‐butanol using polymeric resins

Selective separation of biobutanol from acetone–butanol–ethanol fermentation broth by means of sorption methodology based on a novel macroporous resin

Contact Info

Product

Resources

About