Physicochemical Properties of Potassium Nickel Hexacyanoferrate(II)-Loaded Chabazites

Hitoshi Mimura, Masanori Kimura, Kenichi Akiba, Yoshio Onodera

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Insoluble hexacyanoferrate(I1)s are well known to have an extremely strong affinity for Cs+(1), and they have been studied mainly in connection with the removal of 137Cs from radioactive waste solutiond2). Potassium nickel hexacyanoferrate(I1)s (KNiFC) are readily obtained by precipitating Ni(N03)z with K4Fe(CN)6(3)(4), while they are composed of aggregates of very fine crystals and have insufficient mechanical stability during repeat sorption-desorption cycles. Several granulation methods have been proposed for modifying microcrystalline ferrocyanides into granular shape by freezing and thawing precipitated geld5), or by binding precipitate particles with insoluble polymers(6), while these procedures for preparation were rather complicated and results were often not reproducible.

Original languageEnglish
Pages (from-to)392-395
Number of pages4
Journaljournal of nuclear science and technology
Volume35
Issue number5
DOIs
Publication statusPublished - 1998 Jan 1

Keywords

  • Cesium
  • Chabazite
  • Distribution coefficients
  • Impregnation
  • Ion sieve
  • Loading
  • Oxidation
  • Potassium nickel hexacyanoferrate
  • Radioactive waste solutions
  • Thermal decomposition

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

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