The molecular structure of the phosphate mineral kidwellite NaFe93+(PO4)6(OH)11⋅3H2O – A vibrational spectroscopic study

Frost, Ray L.; López, Andrés; Theiss, Frederick L.; Scholz, Ricardo; Souza, Larissa

doi:10.1016/j.molstruc.2014.06.055

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…Figure 3c presents the FTIR spectrum of the lithium granules. Distinct PO 4 3− related absorption peaks were observed at 579 cm −1 [58] and 1050 cm −1 [58], and the H-O-H bond at 1650 cm −1 band evidenced the presence of water and phosphate groups in solid form, which may refer to Li 3 PO 4 •xH 2 O formation. The band at 3400 cm −1 indicates O-H stretching vibration, confirming the deposition of hydroxide species of Li onto the solid surface [59].…”

Section: Characteristics Of Fbho-g Pelletsmentioning

confidence: 94%

Recovery of Lithium from Industrial Li-Containing Wastewater Using Fluidized-Bed Homogeneous Granulation Technology

Le,

Luu,

Tran

et al. 2024

Minerals

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In this study, a novel fluidized-bed homogeneous granulation (FBHo-G) process was developed to recover lithium (Li) from industrial Li-impacted wastewater. Five important operational variables (i.e., temperatures, pH, [P]0/[Li]0 molar ratios, surface loadings, and up-flow velocities (Umf)) were selected to optimize the Li recovery (TR%) and granulation ratio (GR%) efficiencies of the process. The optimal operational conditions were determined as the following: a temperature of 75 °C, pH of 11.5, [P]0/[Li]0 of 0.5, surface loading of 2.5 kg/m2·h, and Umf of 35.7 m/h). The TR% and GR% at optimal condition could be as much as 90%. The material characterization of the recovery pellet products showed that they were highly crystallized Li3PO4 (purity ~88.2%). The pellets had a round shape and smooth surface with an average size of 0.65 mm, so could easily be stored and transported. The high purity enables them to be further directly reused as raw materials for a wide range of industrial applications (e.g., in the synthesis of cathode materials). Our calculation shows that the FBHo-G process could recover up to 0.1845 kg of lithium per cubic meter of Li-containing wastewater, at a recovery rate of ~90%. A brief technoeconomic analysis shows that FBHG process had economic viability, with an estimate production cost of USD 26/kg Li removed, while the potential gained profit for selling lithium phosphate pellets could be up to USD 48 per the same volume of wastewater and the net profit up to USD 22/m3 Li treated. In all, fluidized-bed homogeneous granulation, a seedless one-step recovery process, opens a promising pathway toward a green and sustainable recycling industry for the recovery and application of the resource-limited lithium element from nonconventional water sources.

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Section: Characteristics Of Fbho-g Pelletsmentioning

confidence: 94%

Recovery of Lithium from Industrial Li-Containing Wastewater Using Fluidized-Bed Homogeneous Granulation Technology

Le,

Luu,

Tran

et al. 2024

Minerals

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“…The mineral pseudolaueite of formula Mn 2 Raman spectroscopy has proven very useful for the study of minerals, especially minerals containing oxyanions such as phosphate [7][8][9][10][11][12][13][14]. This paper is a part of systematic studies of vibrational spectra of minerals of secondary origin in the oxide supergene zone.…”

Section: Introductionmentioning

confidence: 99%

A Raman and Infrared Spectroscopic Study of the Phosphate Mineral Pseudolaueite and in Comparison with Strunzite and Ferrostrunzite

2015

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The Raman spectra of pseudolaueite, strunzite, ferrostrunzite and ferristrunzite have been obtained at 298 K using Raman microscopy. These spectra are compared with their infrared spectra. The vibrational spectra of the four minerals are different, in line with differences in crystal structure and composition. Some similarity in the Raman spectra of the hydroxyl-stretching region exists, particularly but characteristic differences in the OH deformation regions are observed. Differences are also observed in the phosphate stretching and deformation regions. Graphical Abstract This paper offers new knowledge and understanding of the mineral pseudolaueite of formula Mn 2? Fe 2 3? (PO 4 ) 2 (OH) 2 Á8H 2 O,a hydrated hydroxy phosphate of ferric iron and manganese.

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Raman Spectra of Minerals

Чуканов

Вигасина

2019

Vibrational (Infrared and Raman) Spectra of Minerals and Related Compounds

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The molecular structure of the phosphate mineral kidwellite NaFe93+(PO4)6(OH)11⋅3H2O – A vibrational spectroscopic study

Cited by 3 publications

References 25 publications

Recovery of Lithium from Industrial Li-Containing Wastewater Using Fluidized-Bed Homogeneous Granulation Technology

Recovery of Lithium from Industrial Li-Containing Wastewater Using Fluidized-Bed Homogeneous Granulation Technology

A Raman and Infrared Spectroscopic Study of the Phosphate Mineral Pseudolaueite and in Comparison with Strunzite and Ferrostrunzite

Raman Spectra of Minerals

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