Recovery of niobium from wastes generated in titanium production by cation exchange sorbents

Baigenzhenov, Omirserik; Toishybek, Azamat; Khabiyev, Alibek; Aimbetova, Indira; Dagubayeva, A.T.

doi:10.31643/2021/6445.33

Cited by 4 publications

(6 citation statements)

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“…An analysis of the available literature review shows that most studies have been conducted for high-grade niobium-containing raw materials (Shikika et al, 2020). Moreover, very few studies have been conducted on the recovery of niobium from titanium production waste (Baigenzhenov et al, 2021;Kudryavsky, 2004).…”

Section: Introductionmentioning

confidence: 99%

Recovery of niobium pentaoxide and ammonium sulfate from titanium-magnesium production waste

Ultarakova,

Lokhova,

Karshyga

et al. 2023

J. Ecol. Eng.

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This study was aimed to investigate the development of a technology for the extraction of niobium pentaoxide and ammonium sulfate from titanium-magnesium production waste, specifically, the sublimates of dust chamber into concentrate in the form of niobium pentoxide. Optimal conditions for washing the niobium hydroxide precipitate by repulpation with hot (60-70°C) distilled water, drying at 200°C for 6 hours were determined. The influence of temperature and duration of the process was studied. Optimal conditions for the dynamic desorption of niobium from saturated ionite (Purolite A100) was determined. The results further indicated that the optimum quantity of the solution of desorption with sulfuric acid was equal to 5.5% and ammonium oxalate was equal to 4%, while temperature and the flow rate of the desorbing solution was 22-27°C and 6 rpm, respectively. The study of the precipitation of niobium from sulfuric acid desorbates showed that the interaction of niobium ions with ammonia takes place at a low rate. The degree of precipitation of niobium hydroxide equal to 99.6% was achieved in 7 hours of agitation of the suspension at a temperature of 22-25°C.

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Section: Introductionmentioning

confidence: 99%

Recovery of niobium pentaoxide and ammonium sulfate from titanium-magnesium production waste

Ultarakova,

Lokhova,

Karshyga

et al. 2023

J. Ecol. Eng.

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“…Works [9,10] describe the processing of chloride wastes generated in the titanium slag chlorination process. Niobium sorption under static conditions from the leaching solutions of chloride waste containing up to 2 g/L Nb was considered.…”

Section: Introductionmentioning

confidence: 99%

“…Purolite-C104 and KU-2-8 H cation-exchange sorbents were used to sorb niobium from the solution obtained in the leaching process. When the Purolite-C104 ion-exchange resin was used, the niobium sorption rate from the solution with a concentration of 2 g/L for 3.5 h was about 71.0% (0.071 g/g), and this rate was about 89.0% (0.089 g/g) for the KU-2-8 H ion-exchange resin [9]. The sorption kinetics at three different initial concentrations of niobium (1.0, 1.5, and 2.0 g/L) were studied [10].…”

Section: Introductionmentioning

confidence: 99%

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Studies of Niobium Sorption from Chloride Solutions with the Use of Anion-Exchange Resins

et al. 2023

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This paper presents the results of studies for niobium sorption from chloride solutions with the use of anion-exchange organic sorbents: Amberlite IRA-67, Purolite A-100, AB-17-8, and AN-2FN. Niobium sorption was performed from model niobium-containing solutions. Data on comparative sorption characteristics of the studied sorbents were obtained, and the static exchange capacity of the sorbents, values of distribution coefficients, and extraction degree during the niobium sorption from chloride solutions were calculated. The Purolite A-100 anion-exchange resin exhibited the highest affinity for niobium ions under the conditions studied. Its distribution coefficient was 184 mL/g; the niobium extraction degree was 41.5%. To study the equilibrium sorption of niobium from solution on the Purolite A-100 anionite, three well-known models of isotherms were applied: Langmuir, Freundlich, and Dubinin–Radushkevich. The data obtained confirm the good agreement of the Langmuir model with the results of experiments and indicate that the process takes place in a monomolecular layer on the adsorbent having homogeneous adsorption centers. The optimum conditions of niobium sorption by the Purolite A-100 anion-exchange resin were determined as follows: hydrochloric acid concentration—5–10 wt.%, process temperature—35–40 °C, and duration—40–50 min. The calculated activation energy values for niobium sorption from hydrochloric acid solution in the temperature range of 20–50 °C were 25.32 kJ/mol, which corresponds to the intermediate region corresponding to the transition from the diffusion to the kinetic mode.

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“…In other studies, the authors investigated the recovery of niobium from chloride residues generated from the chlorination of titanium slags [ [14], [15]]. In order to recover two-stage leaching process was suggested.…”

Section: Introductionmentioning

confidence: 99%

A review of recovery technologies of rare and rare earth metals from wastes generated in titanium and magnesium production

Toishybek¹,

Baigenzhenov²,

Turan³

et al. 2023

KIMS/CUMR/MShKP

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It is acknowledged that titanium and magnesium production wastes pollute the environment, which in the sequence they create an environmental hazard for soils, groundwater and vegetation. Meanwhile, these wastes can be considered secondary resources of rare and rare earth metals. In recent years, the processing of industrial waste has been a new trend for the extraction of rare and rare earth metals, which can partially cover the demand in case of their disposal. This article is devoted to a review of the available literature and articles on the extraction of rare metals from titanium-magnesium production waste using various processing methods. Methods of their utilization are discussed with an emphasis on the extraction of rare and rare earth metals. This review considered waste processing technologies of various pyrometallurgical and hydrometallurgical processes. Technological schemes of various leaching and extraction processes were presented to give a holistic view of waste processing and extraction of rare metals contained in them. In general, the article contains an overview of the works published on the extraction of rare metals, such as REE (rare earth elements), niobium, tantalum and vanadium.

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Recovery of niobium from wastes generated in titanium production by cation exchange sorbents

Cited by 4 publications

References 0 publications

Recovery of niobium pentaoxide and ammonium sulfate from titanium-magnesium production waste

Recovery of niobium pentaoxide and ammonium sulfate from titanium-magnesium production waste

Studies of Niobium Sorption from Chloride Solutions with the Use of Anion-Exchange Resins

A review of recovery technologies of rare and rare earth metals from wastes generated in titanium and magnesium production

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