Fe(III) recovery from HCl solutions using amberlite XAD‐7 resin impregnated with a tetraalkyl phosphonium ionic liquid

Navarro, Ricardo García; Saucedo, I.; Gallardo, V.; Guibal, Eric

doi:10.1002/cjce.22356

Cited by 13 publications

(13 citation statements)

References 37 publications

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“…Similar materials (changing the resin, the ionic liquid (or extractant), or the method of immobilization (using, for example, biopolymers)) has been widely investigated by our research group in a series of papers focusing on Zn(II), Fe(II), Cd(II), Hg(II), Bi(III), Pt(IV), Pd(II) and Au(III) . Depending on the value of the metal the EIRs could be used as a way to concentrate the metals for analytical applications or for the efficient recovery (and separation) of valuable metals.…”

Section: Discussionmentioning

confidence: 99%

Amberlite XAD Resins Impregnated with Ionic Liquids for Au(III) Recovery

Navarro

Lira

Saucedo

et al. 2017

Macromolecular Symposia

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Phosphonium‐based ionic liquids have been successfully impregnated on several Amberlite XAD resins for recovering Au(III) chloro‐anions. Sorption performance was evaluated through sorption isotherms (very favorable profiles) and uptake kinetics (controlled by the resistance to intraparticle diffusion). The binding mechanism consists of an ion‐exchange between AuCl4− and the counter ion bound to the phosphonium cation. Increasing the IL loading proportionally increases the sorption capacity but decreases the sorption speed (by increasing the resistance to intraparticle diffusion). Changing the counter ion on the phosphonium cation (i.e., complex anion vs. chloride ion) does not improve sorption performance. Highly porous resin (high pore volume and large pore size), such as Amberlite XAD‐1180, shows the best diffusion performance and highest sorption velocity (lower equilibrium time).

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Section: Discussionmentioning

confidence: 99%

Amberlite XAD Resins Impregnated with Ionic Liquids for Au(III) Recovery

Navarro

Lira

Saucedo

et al. 2017

Macromolecular Symposia

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“…21 The variation tendency of E depended on the HCl concentration is a classic phenomenon that exists in the Pt(IV) extraction. 19,21,22 High ionic strengths are against the distribution of organics in aqueous phase, but higher concentration Cl -will compete with [PtCl 6 ] 2-to associate with [C n mim] + based on the anion-exchange reaction.…”

Section: Extraction Of Pt(iv) At Various Hcl Concentrationsmentioning

confidence: 99%

Extraction and Stripping of Platinum from Hydrochloric Acid Medium by Mixed Imidazolium Ionic Liquids

Tong

Wang

Huang

et al. 2015

Ind. Eng. Chem. Res.

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Hydrophilic ionic liquids, 1-alkyl-3-methylimidazolium chloride ([C n mim]Cl, n = 12, 14, and 16) are tested to precipitate Pt(IV) from hydrochloric acid medium. Meanwhile the Pt(IV) extractions are performed with hydrophobic ionic liquids, including 1-alkyl-3-methylimidazolium hexafluorophosphate ([C n mim]PF 6 , n = 4, 6, and 8) and 1-octyl-3methylimidazolium bis(trifluoromethylsulfonyl)imide ([C 8 mim]NTf 2 ). Based on Job's method, infrared spectra, and 1 H NMR analysis, the anion-exchange mechanism is confirmed during the Pt(IV) precipitation. The mixed hydrophilic−hydrophobic ionic liquids ([C n mim]Cl/[C 8 mim]PF 6 ) are developed for Pt(IV) extraction, which significantly increase the Pt(IV) extractability compared to the single hydrophobic ionic liquid. Under the optimum conditions, the [C 16 mim]Cl/[C 8 mim]PF 6 system shows high extractability as well as outstanding selectivity for Pt(IV) over the base metals (Mn(II), Cu(II), Co(II), Ni(II), Fe(III), and Al(III)). By reductive stripping, Pt(IV) in the organic phase can be stripped in the form of platinum powders using hydrazine hydrate; at the same time [C 16 mim]Cl is regenerated in the organic phase. The mixed [C 16 mim]Cl/[C 8 mim]PF 6 ionic liquids can be reused to extract Pt(IV). Therefore, the method is highly effective, selective, and recyclable to extract Pt(IV) and recover metal platinum.

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“…Engineers also characterize polymer impregnation, measure the size distribution of emulsions, release rates control of organic compounds, and encapsulation and release rates of antibiotics . UV‐vis spectroscopy is a powerful tool to calculate the reaction rates . Coupled with HPLC and mass spectrometry, it monitors several wavelengths concurrently .…”

Section: Applicationsmentioning

confidence: 99%

Experimental methods in chemical engineering: Ultraviolet visible spectroscopy—UV‐Vis

et al. 2018

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UV-vis spectroscopy is an inexpensive, simple, flexible, non-destructive, analytical method appropriate for a wide class of organic compounds and some inorganic species. UV-vis spectrophotometers measure the absorbance or transmittance of light passing through a medium as a function of the wavelength. Chemical engineers apply it for quantitative analysis, to derive liquid phase reaction kinetics, and to identify the mechanism at the molecular scale. High performance liquid chromatography and ultra-high performance liquid chromatography integrate UV-vis detectors to identify and quantify the concentration of compounds in liquid streams. Combining these techniques with mass spectrometry facilitates identifying all species. UV-vis diffuse reflectance spectroscopy is a variant with enhanced scattering properties that measures the properties of solids and powders. A bibliometric analysis of the 10 000 most cited papers referring to UV-vis (2016 and 2017) groups research in four major clusters: nanoparticles and nanostucutres; photocatalysis and water treatment; crystals, complexes, and derivatives; and Ag and Au nanoparticles biological interaction.

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Fe(III) recovery from HCl solutions using amberlite XAD‐7 resin impregnated with a tetraalkyl phosphonium ionic liquid

Cited by 13 publications

References 37 publications

Amberlite XAD Resins Impregnated with Ionic Liquids for Au(III) Recovery

Amberlite XAD Resins Impregnated with Ionic Liquids for Au(III) Recovery

Extraction and Stripping of Platinum from Hydrochloric Acid Medium by Mixed Imidazolium Ionic Liquids

Experimental methods in chemical engineering: Ultraviolet visible spectroscopy—UV‐Vis

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