Selective transport-recovery of bismuth(III) by a polymer inclusion membrane containing polyvinyl chloride base polymer and bis(2-ethylhexyl)phosphoric acid

2021 ◽  
pp. 120375
Author(s):  
Davood Kazemi ◽  
Mohammad Reza Yaftian
Keyword(s):  
Phosphoric Acid ◽  
Polyvinyl Chloride ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane ◽  
Selective Transport ◽  
Base Polymer

Facilitated transport of Cr(III) through polymer inclusion membrane with di(2-ethylhexyl)phosphoric acid (DEHPA)

2009 ◽  
Vol 329 (1-2) ◽  
pp. 169-174 ◽  
Author(s):  
Ali Tor ◽  
Gulsin Arslan ◽  
Harun Muslu ◽  
Ahmet Celiktas ◽  
Yunus Cengeloglu ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Facilitated Transport ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane

scholarly journals Selective recovery of cobalt(II) towards lithium(I) from chloride media by transport across polymer inclusion membrane with triisooctylamine

2014 ◽  
Vol 16 (1) ◽  
pp. 15-20 ◽  
Author(s):  
Beata Pospiech
Keyword(s):  
Cellulose Triacetate ◽  
Deionized Water ◽  
Inclusion Membrane ◽  
Chloride Solutions ◽  
Selective Recovery ◽  
Polymer Inclusion Membrane ◽  
Selective Transport ◽  
Nitrophenyl Octyl Ether ◽  
Aqueous Chloride ◽  
Source Phase

Abstract In this work the selective transport of cobalt(II) and lithium(I) ions from aqueous chloride solutions through polymer inclusion membranes (PIMs) is presented. Triisooctylamine (TIOA) has been applied as the ion carrier in membrane. The effects of various parameters on the transport of Co(II) and Li(I) were studied. The obtained results show that Co(II) ions were effectively removed from source phase through PIM containing 32 wt.% TIOA, 22 wt.% CTA (cellulose triacetate) and 46 wt.% ONPOE (o-nitrophenyl octyl ether) or ONPPE (o-nitrophenyl pentyl ether) into deionized water as the receiving phase. The results indicate that there is a possibility of polymer inclusion membranes application to recover Co(II) and Li(I) from aqueous chloride solutions

scholarly journals On the Potential of a Poly(vinylidenefluoride-co-hexafluoropropylene) Polymer Inclusion Membrane Containing Aliquat® 336 and Dibutyl Phthalate for V(V) Extraction from Sulfate Solutions

Membranes ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 90
Author(s):  
Salar Bahrami ◽  
Leila Dolatyari ◽  
Hassan Shayani-Jam ◽  
Mohammad Reza Yaftian ◽  
Spas D. Kolev
Keyword(s):  
Thermogravimetric Analysis ◽  
Dibutyl Phthalate ◽  
Selective Extraction ◽  
Extraction Process ◽  
Back Extraction ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane ◽  
Average Mass ◽  
Sulfate Solutions ◽  
Base Polymer

A polymer inclusion membrane (PIM) composed of 50 wt% base polymer poly(vinylidenefluoride-co-hexafluoropropylene), 40 wt% extractant Aliquat® 336, and 10 wt% dibutyl phthalate as plasticizer/modifier provided the efficient extraction of vanadium(V) (initial concentration 50 mg L−1) from 0.1 M sulfate solutions (pH 2.5). The average mass and thickness of the PIMs (diameter 3.5 cm) were 0.057 g and 46 μm, respectively. It was suggested that V(V) was extracted as VO2SO4− via an anion exchange mechanism. The maximum PIM capacity was estimated to be ~56 mg of V(V)/g for the PIM. Quantitative back-extraction was achieved with a 50 mL solution of 6 M H2SO4/1 v/v% of H2O2. It was assumed that the back-extraction process involved the oxidation of VO2+ to VO(O2)+ by H2O2. The newly developed PIM, with the optimized composition mentioned above, exhibited an excellent selectivity for V(V) in the presence of metallic species present in digests of spent alumina hydrodesulfurization catalysts. Co-extraction of Mo(VI) with V(V) was eliminated by its selective extraction at pH 1.1. Characterization of the optimized PIM was performed by contact angle measurements, atomic-force microscopy, energy dispersive X-ray spectroscopy, thermogravimetric analysis/derivatives thermogravimetric analysis and stress–strain measurements. Replacement of dibutyl phthalate with 2-nitrophenyloctyl ether improved the stability of the studied PIMs.

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