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Title: SELECTIVE EXTRACTION OF PERRHENATE IONS FROM MODEL SOLUTIONS USING KU-2-8 AND AV-17-8 ION EXCHANGE RESINS ENCAPSULATED IN POLYPROPYLENE MESH

Year

2025

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417

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Title

SELECTIVE EXTRACTION OF PERRHENATE IONS FROM MODEL SOLUTIONS USING KU-2-8 AND AV-17-8 ION EXCHANGE RESINS ENCAPSULATED IN POLYPROPYLENE MESH

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Authors

Arman Baishibekov; Bagdat Altaibayev; Fischer Dametken; Zhasulan Bekpeissov; Gulnara Toilanbay

DOI

10.5593/sgem2025/1.1/s04.48

DOI Issue

10.5593/sgem2025/1.1

ISSN

1314-2704

ISBN

978-619-7603-79-8

Language

English

Volume

Issue

1.1

Editor

• Prof. Dr. hab. oec. Baiba Rivza, LATVIA• Prof. DSc. Ildiko Tulbure, GERMANY• Prof. DSc. Oleksandr Trofymchuk, UKRAINE

Scientific Area

Sustainable Mineral Processing and Resource Efficiency

Abstract/ Foreword

In this study, the extraction efficiency of rhenium ions in the form of perrhenate (ReO4?) from model aqueous solutions was investigated using a binary ion-exchange system based on KU-2-8 (strongly acidic cation-exchange resin) and AV-17-8 (strongly basic anion-exchange resin). The ion exchangers were separately weighed and combined in varying molar ratios (6:0, 5:1, 4:2, 3:3, 2:4, 1:5, and 0:6), and were immobilized within a chemically resistant polypropylene mesh bag to maintain phase separation while allowing solution contact. Sorption experiments were conducted at room temperature with initial Re concentrations of 100 mg/L, across different pH values (native pH ˜ 6.2 and adjusted pH = 4.0) to evaluate the pH effect on ion-exchange performance.
The optimal performance was observed at a KU-2-8:AV-17-8 molar ratio of 2:4 and pH = 4.0, where rhenium ion removal was significantly higher than at the natural pH of ammonium perrhenate solution. Moreover, the combined system outperformed individual resins used alone (6:0 or 0:6). This enhancement is attributed to synergistic effects between cationic and anionic components, as well as improved local ion exchange conditions within the mesh environment.
These results demonstrate the potential of dual-ion-exchanger systems in controlled microenvironments for efficient and selective recovery of rhenium from aqueous media.

References (click to open)

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[2]Leiting Shen, Fiseha Tesfaye, Xiaobin Li, Daniel Lindberg, and Pekka Taskinen2021 Minerals Engineering 161 106719 DOI:https://doi.org/10.1016/j.mineng.2020.106719
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Acknowledgements (click to open)

Type

conference

Url

https://doi.org/10.5593/sgem2025/1.1/s04.48

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SELECTIVE EXTRACTION OF PERRHENATE IONS FROM MODEL SOLUTIONS USING KU-2-8 AND AV-17-8 ION EXCHANGE RESINS ENCAPSULATED IN POLYPROPYLENE MESH

Proceedings Тitle

Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 1.1

Note

25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 1.1, 29 June - 6 July, 2025

Type

Proceedings Paper

Publisher

STEF92 Technology

Series

International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM

Organization

SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.

Pages

397-404

Date

29 June - 6 July, 2025

Online Source Type

website

Digital Source Type

10327

Keywords

Rhenium recovery, KU-2-8, AV-17-8, Ion-exchange resins, pH effect, binary sorbent system