Development of novel adsorbent bearing aminocarbonylmethylglycine and its application to scandium separation

Zhigang Zhao, Yuzo Baba, Wataru Yoshida, Fukiko Kubota, Masahiro Goto

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

BACKGROUND: Scandium (Sc) is an important metal element in high-technology industries and the demand for Sc has been increasing annually. However, because metallurgical processes for its purification and recovery are complex, an effective technique for its separation is required. This paper reports on the development of novel adsorbents that are capable of separating Sc efficiently. RESULTS: Novel adsorbents were prepared by introducing aminocarbonylmethylglycine functional groups onto two types of support materials, silica gels for determining suitable preparation conditions and an organic resin for practical use. Scandium adsorption and separation were carried out in sulfuric media using these adsorbents. The adsorbents exhibited high selectivity to Sc from Mg, Al, Ca, Cr, Mn, Co and Ni except for Fe(III). Adsorption–desorption experiments were conducted to examine the adsorbent reusability. The adsorbents showed similar results in reuse tests without any obvious loss. CONCLUSIONS: Aminocarbonylmethylglycine functional group introduction proved effective and efficient for Sc adsorption. The newly synthesized adsorbents showed high affinity for Sc and Fe(III). Sc was separated selectively from Fe by reducing Fe(III) to Fe(II) because the adsorbent showed no affinity for divalent Fe(II). The new resin based adsorbent can be used for the practical separation of Sc.

Original languageEnglish
Pages (from-to)2779-2784
Number of pages6
JournalJournal of Chemical Technology and Biotechnology
Volume91
Issue number11
DOIs
Publication statusPublished - Nov 1 2016

Fingerprint

Bearings (structural)
Scandium
scandium
Adsorbents
Functional groups
Adsorption
functional group
resin
Resins
high technology industry
adsorption
Silica Gel
Reusability
Silica gel
Chemical elements
Purification
purification
Industry
gel
silica

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Waste Management and Disposal
  • Pollution
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Development of novel adsorbent bearing aminocarbonylmethylglycine and its application to scandium separation. / Zhao, Zhigang; Baba, Yuzo; Yoshida, Wataru; Kubota, Fukiko; Goto, Masahiro.

In: Journal of Chemical Technology and Biotechnology, Vol. 91, No. 11, 01.11.2016, p. 2779-2784.

Research output: Contribution to journalArticle

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AB - BACKGROUND: Scandium (Sc) is an important metal element in high-technology industries and the demand for Sc has been increasing annually. However, because metallurgical processes for its purification and recovery are complex, an effective technique for its separation is required. This paper reports on the development of novel adsorbents that are capable of separating Sc efficiently. RESULTS: Novel adsorbents were prepared by introducing aminocarbonylmethylglycine functional groups onto two types of support materials, silica gels for determining suitable preparation conditions and an organic resin for practical use. Scandium adsorption and separation were carried out in sulfuric media using these adsorbents. The adsorbents exhibited high selectivity to Sc from Mg, Al, Ca, Cr, Mn, Co and Ni except for Fe(III). Adsorption–desorption experiments were conducted to examine the adsorbent reusability. The adsorbents showed similar results in reuse tests without any obvious loss. CONCLUSIONS: Aminocarbonylmethylglycine functional group introduction proved effective and efficient for Sc adsorption. The newly synthesized adsorbents showed high affinity for Sc and Fe(III). Sc was separated selectively from Fe by reducing Fe(III) to Fe(II) because the adsorbent showed no affinity for divalent Fe(II). The new resin based adsorbent can be used for the practical separation of Sc.

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