Kinetic studies for sorption of some metal ions from aqueous acid solutions onto TDA impregnated resin

Metwally, Essam

doi:10.1007/s10967-006-0462-5

Cited by 31 publications

(18 citation statements)

References 2 publications

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“…Therefore, it can be concluded that the working adsorption system obeys Langmuir adsorption model. The essential characteristics of Langmuir isotherm can be expressed in terms of a dimensionless constant, separation factor or equilibrium parameter [44] as RL which is given by the following equation; namely,…”

Section: Sorption Isotherm Modelingmentioning

confidence: 99%

Characteristics of uranium recovery from phosphoric acid by an aminophosphonic resin and application to wet process phosphoric acid

Cheira

2015

Eur. J. Chem.

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The chelating aminomethylphosphonic resin Amberlite IRC747 is used for uranium recovery from a synthetic phosphoric acid solution. The operating conditions of uranium extraction have been experimentally optimized by the batch technique viz., the phosphoric acid concentration, the contact time, the initial uranium concentration and the temperature. The effect of some interfering ions upon the effective capacity of the resin has also been examined. It has thus been found that the maximum uranium adsorption capacity of the studied chelating resin was found to attain 86.5 mg/g at 5 M phosphoric acid using 0.1 g resin for 120 min contact time with 50 mL acid assaying 200 mg U/L and room temperature. The obtained equilibrium data agreed well with the Langmuir isotherm model and the relevant thermodynamic parameters (ΔG, ΔH and ΔS) were evaluated and the uranium adsorption was found to be an endothermic reaction and of spontaneous nature. From the kinetic experiments it was shown that U(VI) adsorption followed the pseudo-second order kinetics model and the intraparticle diffusion model. Also, it has been possible to reveal from the kinetic and isotherm data the chemisorption nature of uranium on the Amberlite IRC747 resin. The adsorbed uranium ions can almost be completely eluted with 0.8 M (NH4)2CO3 solution from the loaded resin at room temperature. The studied optimized conditions have successfully been applied for uranium recovery from Abu Zaabal wet process phosphoric acid (WPPA).

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Section: Sorption Isotherm Modelingmentioning

confidence: 99%

Characteristics of uranium recovery from phosphoric acid by an aminophosphonic resin and application to wet process phosphoric acid

Cheira

2015

Eur. J. Chem.

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“…In the recent decades, chelating ion exchange resins has been reported to be effective solid adsorbents for removal of metal ions, including Hg(II), from their aqueous solutions [10][11][12][13][14][15][16][17][18][19][20]. For providing chelating ion exchange resins, appropriate extractant molecules can be chemically bonded to or impregnated onto macroporous polymeric matrixes such as Amberlite XAD series resins.…”

Section: Introductionmentioning

confidence: 99%

“…For providing chelating ion exchange resins, appropriate extractant molecules can be chemically bonded to or impregnated onto macroporous polymeric matrixes such as Amberlite XAD series resins. The XAD series resins are of immense value for designing desired chelating resins and many previous studies have been reported for various XAD resins in which an inert support is chemically bonded or physically impregnated with a selective organic extractant to produce a chelating adsorbent for the sorption of metal ions from aqueous solutions [15][16][17][18][19][20]. However, direct bonding of chelating ligands to a polymeric matrix is very difficult and time consuming due to relative inertness of polymeric surface in the ground state and, hence, requiring surface activation.…”

Section: Introductionmentioning

confidence: 99%

Removal of Hg(II) from aqueous solutions using a novel impregnated resin containing 1-(2-thiazolylazo)-2-naphthol (TAN)

Hosseini-Bandegharaei

Hosseini

Jalalabadi

et al. 2011

Chemical Engineering Journal

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“…At the same time, using simulation level of adsorption dynamics model to fitting of adsorption process, having certain prediction for adsorption behaviour. Lagergren equation is solid-liquid adsorption system simulation analysis of one of the commonly used model [4,5,6]. Methylene blue in AB-8 macroreticular resin adsorption equation expression for formula (1) logC t =logC e + Kt/2.303…”

Section: Adsorption Kinetics Researchmentioning

confidence: 99%

Adsorption of Methylene Blue from Aqueous Solution by AB-8 Macroreticular Resin

Liu

et al. 2016

MATEC Web of Conferences

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Abstract. Study on adsorption kinetics and thermodynamics of methylene blue by AB-8 macroreticular resin was carried out through static experiments. The results showed that the adsorption rate for the solute appear to be the first order kinetics, the intraparticle diffusion is the main rate-controlling step. In the experimental temperature, thermodynamic studies indicated that methylene blue adsorption onto resin AB-8 conforms to Langmuir and Freundlich adsorption isotherm. Methylene blue adsorption quantity respectively 30 mg/L, 150 mg/L, and 300 mg/L . The adsorption enthalpy change is 40.3 kJ/moL , 39.2 kJ/moL , and 33.6 kJ/moL respectively. The uptake of salicylic acid on AB-8 macroreticular resin is a type of physical adsorption.

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Kinetic studies for sorption of some metal ions from aqueous acid solutions onto TDA impregnated resin

Cited by 31 publications

References 2 publications

Characteristics of uranium recovery from phosphoric acid by an aminophosphonic resin and application to wet process phosphoric acid

Characteristics of uranium recovery from phosphoric acid by an aminophosphonic resin and application to wet process phosphoric acid

Removal of Hg(II) from aqueous solutions using a novel impregnated resin containing 1-(2-thiazolylazo)-2-naphthol (TAN)

Adsorption of Methylene Blue from Aqueous Solution by AB-8 Macroreticular Resin

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