Removal of Zn(II) from Aqueous Acetate Solution Using Di (2-Ethylhexyl) Phosphoric Acid &amp; Tributylphosphate

Guezzen, Brahim; Didi, Mohamed Amine

doi:10.5539/ijc.v4n3p32

Cited by 21 publications

(10 citation statements)

References 17 publications

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“…This is in contrast with observations made in Zn(II)-D2EHPA/TBP-H 3 PO 4 system where synergistic effect was noted (Guezzen and Didi, 2012).…”

Section: +contrasting

confidence: 56%

Mechanism of the extraction of Molybdenum(VI) from diluted HCl and HNO<sub>3</sub> solutions with di(2-ethylhexyl)phosphoric acid

Ojo¹,

Ajayi²

2013

Int. J. Bio. Chem. Sci

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The mechanism of extraction of Mo (VI) from diluted HCl and HNO 3 solutions with di(2-ethylhexyl) phosphoric acid (D2EHPA) dissolved in n-hexane has been investigated. The mechanism of extraction from both acids at pH 1.0 -6.0 was found to be majorly by cation exchange of MoO 2 2+ . The extraction efficiency was maximal at pH 1.0 for both acids, E% = 84.8 and 80.0 for HCl and HNO 3 media respectively. From the method of slope analysis, the number of D2EHPA molecules associated with MoO 2 2+ was found to be two at pH = 1.0.

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“…This is in contrast with observations made in Zn(II)-D2EHPA/TBP-H 3 PO 4 system where synergistic effect was noted (Guezzen and Didi, 2012).…”

Section: +contrasting

confidence: 56%

Mechanism of the extraction of Molybdenum(VI) from diluted HCl and HNO<sub>3</sub> solutions with di(2-ethylhexyl)phosphoric acid

Ojo¹,

Ajayi²

2013

Int. J. Bio. Chem. Sci

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“…The expression t max for equation (13) replaces Eqs. (16)(17)(18), from which the maximum flows can be obtained [30].…”

Section: Kinetics Of Cd2+ Ions Extractionmentioning

confidence: 99%

“…LM is now rapidly expanding the fields of both research and industrial separation techniques [14]. Removal and recovery of heavy metal ions from waste water are the most popular applications among the applications of liquid membranes [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Extraction of Cd2+ ions from MDLM System with TNOA carrier

Donat¹

2018

Marmara Fen Bilimleri Dergisi

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The extraction of Cd 2+ ions via a new Multi-Dropped Liquid Membrane System: Extraction of Cd 2+ ions from the solution phase was studied by using the multi-dropped liquid membrane system, which is different from other liquid membranes. The extraction of Cd 2+ ions through multi-dropped liquid membrane containing tri-n-octyl amine in kerosene as mobile carrier and protons as counter ions in the acceptor phase (CH 3 COONH 4 ) was investigated. Donor, acceptor, and the organic phase in the reduced concentration of Cd 2+ model time dependence curves showed a good fit to experimental data obtained. The activation energy in the extraction mechanism of Cd 2+ ions was calculated to be 17.07 kcal/mol. The value of this calculated activation energy indicates that the extraction of Cd 2+ ions with the multi-dropped liquid membrane system is chemically controlled. The experimental results suggest the possibility of removing Cd 2+ ions from aqueous solution in an extractor based on multi-dropped liquid membrane system. ÖzCd +2 iyonlarının yeni bir Çok Damlacıklı Sıvı Membran Sistemi ile ekstraksiyonu: Cd +2 iyonlarının çözelti fazından ekstraksiyonu, diğer sıvı membran tiplerinlerinden farklı olan çok damlacıklı sıvı membran sistemi kullanılarak çalışılmıştır. Çok damlacıklı sıvı membran sisteminde kerozen içinde çözünmüş taşıyıcı tri-n-oktil amin ve aksptör faz olarak karşıt iyon olan protonlayıcı (CH 3 COONH 4 ) içeren çözelti ile Cd +2 iyonlarının ekstraksiyonu incelenmiştir. Donör, akseptör ve organik fazdaki Cd +2 iyonlarının zamanla azalan konsantrasyon eğrileri elde edilen deneysel verilerle iyi bir uyum göstermiştir. Cd +2 iyonlarının ekstraksiyon mekanizmasına ait aktivasyon enerjisi, 17.07 kcal/mol olarak hesaplandı. Bu hesaplanan aktivasyon enerjisinin değeri çok damlacıklı membran sistemi ile Cd +2 iyonlarının ekstraksiyonunun kimyasal kontrollü olduğunu göstermiştir. Deneysel sonuçlara göre çok damlaçıklı sıvı membran sistemine dayanan bir eksraktör ile sulu çözeltiden Cd +2 iyonlarının uzaklaştırılmasının mümkün olduğunu göstermektedir.Anahtar Sözcükler: Kadmiyum, Ekstraksiyon, ÇDSM, TNOA.

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“…Ultimately, the synergist coefficient also increased, from 0.63 to 1.7. According to Guezzen and Didi [23], the synergistic coefficient should be greater than 1, then synergic effect will occur. If the synergistic coefficient is lower than 1, antagonistic effect will take place instead.…”

Section: Effect Of Synergist Extractant Concentrationmentioning

confidence: 99%

Synergistic Extractant for Extraction of Remazol Orange 3r in Liquid Membrane Formulation

2018

MJAS

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Currently, various synthetic dyes are used in the textile industry and a lot of non-bonded dyes are released into the wastewater; increasing its toxicity and carcinogenicity. Liquid membrane process is one of the potential methods to eliminate these unwanted particles from the wastewater. The most crucial part of the liquid membrane process is its formulation; especially the extractant or carrier. In order to find a suitable extractant, liquid-liquid extraction process was carried out. The effect of synergistic extractant to extract the Remazol Orange 3R reactive dyes in a shorter time and at a lower concentration of extractant was investigated in this study. Several parameters have been studied such as extractant type, extractant concentration, synergist extractant type and synergist extractant concentration. The results show that, Remazol Orange 3R reactive dyes were extracted by tridodecylamine (TDA) as a base and trioctylamine (TOA) as a synergist extractant. Meanwhile, the salicyclic acid (SA) was used to protonate the TDA and TOA, and cooking palm oil was used as a diluent. The performance of extraction of reactive dyes at the 0.1 M concentration of extractant was 70% when synergistic system was applied compared to single extractant which was only 50% of the dyes have been extracted. Therefore, the synergistic extractant has a potential to be further utilised in liquid membrane studies on the extraction of reactive dyes.

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Removal of Zn(II) from Aqueous Acetate Solution Using Di (2-Ethylhexyl) Phosphoric Acid & Tributylphosphate

Cited by 21 publications

References 17 publications

Mechanism of the extraction of Molybdenum(VI) from diluted HCl and HNO<sub>3</sub> solutions with di(2-ethylhexyl)phosphoric acid

Mechanism of the extraction of Molybdenum(VI) from diluted HCl and HNO<sub>3</sub> solutions with di(2-ethylhexyl)phosphoric acid

Extraction of Cd2+ ions from MDLM System with TNOA carrier

Synergistic Extractant for Extraction of Remazol Orange 3r in Liquid Membrane Formulation

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