Perrhenate-ions adsorption by N-substituted chitosan derivatives

Melchakova, O. V.; Пестов, А. В.; Печищева, Н. В.; Shunyaev, K. Yu.

doi:10.1007/s11172-019-2448-9

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…Десорбцию рения из низкоосновных смол проводят 2-6 М растворами аммиака при 80℃ [5][6], для десорбции металла из сильноосновных анионитов применяют более химически активные вещества: минеральные кислоты, роданид аммония, нитрат аммония и т.д. [7].…”

Section: Introductionunclassified

Sorption Extraction of Rhenium by Different Ionites From Uranium Sorption Columns

Tolbay,

Bekishev,

Ismailova

et al. 2023

Chem. J. of Kaz.

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This text discusses the importance of rhenium in modern science and technology, particularly its significance in various production spheres due to its properties. The purpose of this work is extracting rhenium is the mother liquors of uranium production.However, due to its low concentration in raw materials, research into more advanced extraction methods is necessary. One such method is sorption extraction of rhenium.Currently, extensive research is being conducted to obtain highly effective sorbents for rhenium. Among the most promising are ion-exchange resins such as Purolite A660/4759, Puromet MTS9300, SQD 201U, and Biolite 200U. Conditions for rhenium sorption using these resins from standard, model, and mother solutions under various acidity levels have been studied, along with conditions for desorption of this metal from the sorbents.The latter two, SQD 201U and Biolite 200U, demonstrated high efficiency. Conclusion.They exhibited high rhenium sorption results from acidic solutions, showing high selectivity in both sorption and desorption concerning rhenium. Their sorption capacity for rhenium in strongly acidic solutions exceeded 21 mg/g. When sorbing from model and mother solutions, these sorbents showed a rhenium sorption degree exceeding 60%. During desorption, the rhenium desorption degree from these sorbents using a mixture of acids reached values higher than 85%.Therefore, ion-exchange resins SQD 201U and Biolite 200U perform well in industrial solution conditions, allowing their use in extracting rhenium from uranium mother liquors.

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Section: Introductionunclassified

Sorption Extraction of Rhenium by Different Ionites From Uranium Sorption Columns

Tolbay,

Bekishev,

Ismailova

et al. 2023

Chem. J. of Kaz.

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show abstract

“…In particular, N-derivatives of chitosan demonstrated high degree of extraction of perrhenate ions from aqueous solutions. 9 Chitosan carbon materials for the extraction of arsenate ions have been obtained. 10 A sorbent was obtained under conditions of cathodic or anodic treatment of carbon fi ber in a solution of chitosan, followed by modifi cation with molybdenum.…”

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Chitin-based magnetic composite for the removal of contaminating substances from aqueous media

Самойлова

Krayukhina

2020

Russ Chem Bull

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A method of obtaining multipurpose magnetic chitin, which combines the magnetic properties of magnetite and the adsorption properties of polysaccharide, was proposed. The possibility of using chitin-(CT) and chitosan (CS)-containing magnetic composites for the adsorption of inorganic ions Co II and Cr VI and organic substances (2-and 4-nitrophenols) from aqueous media was analyzed. It was shown that the adsorption capacity of magnetic chitin with respect to Co II and Cr VI ions reached 41 mg g -1 and 15 mg g -1 , respectively. The maximum adsorption capacity for 4-nitrophenol (19 mg g -1 per CT-containing magnetic composite or 56 mg g -1 per chitin component) was about three times higher than for 2-nitrophenol. The obtained adsorbent Fe 3 O 4 /CT is environmentally friendly and reusable.

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Effect of the degree of sulfoethylation of polyethylenimine on the selectivity of sorption of palladium(ii) from binary solutions

et al. 2021

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Perrhenate-ions adsorption by N-substituted chitosan derivatives

Cited by 4 publications

References 19 publications

Sorption Extraction of Rhenium by Different Ionites From Uranium Sorption Columns

Sorption Extraction of Rhenium by Different Ionites From Uranium Sorption Columns

Chitin-based magnetic composite for the removal of contaminating substances from aqueous media

Effect of the degree of sulfoethylation of polyethylenimine on the selectivity of sorption of palladium(ii) from binary solutions

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