Facilitated transport of sodium phenolate through supported liquid membrane

Park, Sang-Wook; Kim, Kun-Woo; Sohn, In-Joe; Kaseger, Christiawaty Ferania

doi:10.1016/s1383-5866(99)00074-x

Cited by 22 publications

(8 citation statements)

References 12 publications

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“…In LMs linear monoalkyl cyclohexane [18], N,N-di (1-methyl heptyl) acetamide [19], dibenzo-18-crown-6 [20], dodecane [21], trioctylamine [22], N-octanoylpyrrolidine [23] have been reported, all of which are synthetic toxic chemicals. The solvents generally used for the liquid membrane processes are typically flammable, volatile, toxic and their use leads to environmental and safety risks.…”

Section: Introductionmentioning

confidence: 99%

Recovery of phenol from aqueous solution by supported liquid membrane using vegetable oils as liquid membrane

Venkateswaran

Palanivelu

2006

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 99%

Recovery of phenol from aqueous solution by supported liquid membrane using vegetable oils as liquid membrane

Venkateswaran

Palanivelu

2006

Journal of Hazardous Materials

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“…The value of β due to the chemical reaction is obtained from the ratio of the chemical absorption rate to the physical absorption rate in a continuous absorber for the gas and liquid phase, or, the ratio of k L with a reaction to that without a reaction [15] in a semi-batch absorber. In this study, β was obtained by using the measured values of k L and it was plotted against C Bo for various solvents in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The value of k o was obtained using β and Eq. (15). The values of k 3 and k 2 /k 1 were obtained from the slopes and intercepts of the straight lines of the plots of Q o C Bo /k o against C Bo .…”

Section: Resultsmentioning

confidence: 99%

Reaction kinetics of the reaction between carbon dioxide and glycidyl methacrylate using tetraoctylammonium chloride as catalyst

Park

Choi

Park

et al. 2007

React Kinet Catal Lett

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Carbon dioxide was absorbed in an organic solutions of glycidyl methacrylate (GMA) in a semi-batch stirred tank with a plane gas-liquid interface at 101.3 kPa to obtain the absorption rate of carbon dioxide, from which the reaction kinetics of the reaction between carbon dioxide and GMA as studied using tetraoctylammonium chloride as catalyst. The reaction rate constants were estimated from the mass transfer mechanism accompanied by the pseudo-first-order reaction with respect to the concentration of carbon dioxide. An empirical correlation formula between the reaction rate constants and the solubility parameters of solvents such as toluene, N-methyl-2-pyrrolidinone, and dimethyl sulfoxide is presented.

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“…The membrane was dipped in vegetable oil for impregnation for 15 h before use [29,33,35,57]. Excess of the oil adhered to the surface of the membrane was removed gently with the help of a tissue paper.…”

Section: Preparation Of Slm and Stock Solutionmentioning

confidence: 99%

Extraction of phenol from aqueous effluent using triglycerides in supported liquid membrane

Badgujar

Rastogi

2011

Desalination and Water Treatment

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A B S T R A C TThis research work focuses on the removal of phenol using a flat sheet supported liquid membrane impregnated with triglycerides (vegetable oils). The mass transfer of phenol was found to be dependent on various factors such as type of vegetable oil, support material, feed phase pH and concentration, stripping phase concentration and stirring speed. The phenol transport was found to be higher when PTFE membrane (pore size 0.45 mm) impregnated with coconut oil was used and mass transfer coefficient was found to be 3.50 Â 10 À6 m/s. The corresponding stirring speed, pH of feed solution, concentration of stripping (NaOH) solution were 350 rpm, 4.0 and 0.2 M, respectively. The 92.5% of phenol was extracted from feed phase to stripping phase in 20 h. The aqueous boundary layer thickness reduced with an increase in stirring speed up to a certain extent (350 rpm), beyond which, it resulted in turbulence leading to displacement of impregnated oil from membrane pores. Phenol can be transported through the membrane, when it is present in molecular or undissociated state in aqueous solution. Since the pKa value of phenol is 10, the phenol will be present in undissociated form when the pH of the feed solution was 4.0, which resulted in the highest membrane mass transfer coefficient. The extraction of phenol was found to be dependent on the composition of fatty acids (chain length and position of double bond) in triglyceride. It may be concluded that PTFE membrane impregnated with triglyceride from coconut can be successfully used for the extraction of phenol from aqueous feed.

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Facilitated transport of sodium phenolate through supported liquid membrane

Cited by 22 publications

References 12 publications

Recovery of phenol from aqueous solution by supported liquid membrane using vegetable oils as liquid membrane

Recovery of phenol from aqueous solution by supported liquid membrane using vegetable oils as liquid membrane

Reaction kinetics of the reaction between carbon dioxide and glycidyl methacrylate using tetraoctylammonium chloride as catalyst

Extraction of phenol from aqueous effluent using triglycerides in supported liquid membrane

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