Solid–liquid extraction of heavy rare-earths from phosphoric acid solutions using Tulsion CH-96 and T-PAR resins

Kumar, B. Nagaphani; Radhika, S.; Reddy, B. S. R.

doi:10.1016/j.cej.2010.03.021

Cited by 76 publications

(11 citation statements)

References 31 publications

(37 reference statements)

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“…The behavior of the aminophosphonic resins IRC-747, S940, CH-93, and TP-260 is similar: extraction decreases when Z/IR increases from the scandium up to a plateau constituted by the group of La, Nd, Gd, and then increases with Z/IR from Dy to Yb. It is worth noting that the efficiency of extraction (see Figure 4) decreases with IR similarly to that observed with CH-93 resins [12,13,17] or with phosphorus extractants [18], for example dialkylphosphinic acid CYANEX 272 [19] or di(2-ethylhexyl)phosphoric acid D2EHPA [20]).…”

supporting

confidence: 64%

“…The stability of the aminophosphonic group was confirmed with Tulsion CH-93 resin: after 7 cycles of gadolinium (GdIII) extraction in phosphoric acid followed by quantitative elution with ammonium oxalate, Gd 3+ extracted at the same yield of 70 ± 1% [12]. Another advantage is the low sensitivity of phosphorus resins like Tulsion-CH-96 (phosphinic acid) or T-PAR (phosphoric acid) to the temperature [13]. Increasing the phosphoric acid temperature from 30 • C to 70 • C hardly modifies the REE extraction.…”

Section: Choice Of the Resinmentioning

confidence: 99%

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Selective Extraction of Rare Earth Elements from Phosphoric Acid by Ion Exchange Resins

Hérès

Blet

Natale

et al. 2018

Metals

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Rare earth elements (REE) are present at low concentrations (hundreds of ppm) in phosphoric acid solutions produced by the leaching of phosphate ores by sulfuric acid. The strongly acidic and complexing nature of this medium, as well as the presence of metallic impurities (including iron and uranium), require the development of a particularly cost effective process for the selective recovery of REE. Compared to the classical but costly solvent extraction, liquid-solid extraction using commercial chelating ion exchange resins could be an interesting alternative. Among the different resins tested in this paper (Tulsion CH-93, Purolite S940, Amberlite IRC-747, Lewatit TP-260, Lewatit VP OC 1026, Monophos, Diphonix,) the aminophosphonic IRC-747, and aminomethylphosphonic TP-260 are the most promising. Both of them present similar performances in terms of maximum sorption capacity estimated to be 1.8 meq/g dry resin and in adsorption kinetics, which appears to be best explained by a moving boundary model controlled by particle diffusion.

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supporting

confidence: 64%

Section: Choice Of the Resinmentioning

confidence: 99%

Selective Extraction of Rare Earth Elements from Phosphoric Acid by Ion Exchange Resins

Hérès

Blet

Natale

et al. 2018

Metals

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“…Most of these highly efficient extractants are based on phosphorus reagents such as alkyl phosphate [19,[22][23][24][25][26], alkyl phosphoric acid [27][28][29], alkyl phosphine oxide [30,31], phosphonium ionic liquids [32,33] and organophosphonic extractants [34][35][36][37]. The strong affinity of phosphorus-based extractants for rare earth easily explains that a strong effort has been made for designing synthetic resins bearing phosphorus-based reactive groups such as Tulsion CH-96 and T-PAR resins [38,39], Tulsion CH-93 [34], Purolite S957 and Diphonix [40] or metal-organic frameworks [41]. Heres et al [42] compared a series of resins bearing phosphonic reactive groups (multifunctional resins) for the extraction of REEs from phosphoric acid and they reported that aminophosphonic IRC-747 and aminomethylphosphonic TP-260 resins are the most promising.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a New Phosphonate-Based Sorbent and Characterization of Its Interactions with Lanthanum (III) and Terbium (III)

et al. 2021

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High-tech applications require increasing amounts of rare earth elements (REE). Their recovery from low-grade minerals and their recycling from secondary sources (as waste materials) are of critical importance. There is increasing attention paid to the development of new sorbents for REE recovery from dilute solutions. A new generation of composite sorbents based on brown algal biomass (alginate) and polyethylenimine (PEI) was recently developed (ALPEI hydrogel beads). The phosphorylation of the beads strongly improves the affinity of the sorbents for REEs (such as La and Tb): by 4.5 to 6.9 times compared with raw beads. The synthesis procedure (epicholorhydrin-activation, phosphorylation and de-esterification) is investigated by XPS and FTIR for characterizing the grafting route but also for interpreting the binding mechanism (contribution of N-bearing from PEI, O-bearing from alginate and P-bearing groups). Metal ions can be readily eluted using an acidic calcium chloride solution, which regenerates the sorbent: the FTIR spectra are hardly changed after five successive cycles of sorption and desorption. The materials are also characterized by elemental, textural and thermogravimetric analyses. The phosphorylation of ALPEI beads by this new method opens promising perspectives for the recovery of these strategic metals from mild acid solutions (i.e., pH ~ 4).

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“…Kumar et al. used macroporous bifunctional phosphinic acid resin based SPE to selectively enrich seven rare‐earth ions from phosphoric acid solutions . Lu et al.…”

Section: Introductionmentioning

confidence: 99%

Zeolitic imidazolate framework 8 (ZIF‐8) reinforced macroporous resin D101 for selective solid‐phase extraction of 1‐naphthol and 2‐naphthol from phenol compounds

et al. 2017

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Macroporous resin has been attracting intensive attention due to its critical role in separation and purification of natural products. Herein, a zeolitic imidazolate framework 8 reinforced macroporous resin D101 was prepared via a room temperature growth method and used for dispersive SPE of 1-naphthol and 2-naphthol. The parameters affecting the adsorption and desorption efficiency such as the sample pH, adsorbent amount, extraction time, desorption solvent, and desorption time were investigated. The as-prepared adsorbent showed selectivity for 1-naphthol and 2-naphthol compared to other phenols. Under the optimum dispersive SPE conditions, the detection of 1-naphthol and 2-naphthol coupled with a CZE method was conducted and the LODs for 1-naphthol and 2-naphthol were 1.37 and 1.43 ng/mL, respectively. Moreover, the results of urine sample analysis showed the spiked recoveries to be in the range of 96.2-106.9%. This study indicated that D101@ZIF-8 (where ZIF is zeolitic imidazolate framework) is a promising selective adsorbent for the analysis of 1-naphthol and 2-naphthol in urine samples.

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Solid–liquid extraction of heavy rare-earths from phosphoric acid solutions using Tulsion CH-96 and T-PAR resins

Cited by 76 publications

References 31 publications

Selective Extraction of Rare Earth Elements from Phosphoric Acid by Ion Exchange Resins

Selective Extraction of Rare Earth Elements from Phosphoric Acid by Ion Exchange Resins

Synthesis of a New Phosphonate-Based Sorbent and Characterization of Its Interactions with Lanthanum (III) and Terbium (III)

Zeolitic imidazolate framework 8 (ZIF‐8) reinforced macroporous resin D101 for selective solid‐phase extraction of 1‐naphthol and 2‐naphthol from phenol compounds

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