Silver zeolites: Iodide occlusion and conversion to sodalite - A potential 129I waste form?

Gareth P. Sheppard*, Joseph A. Hriljac, Ewan R. Maddrell, Neil C. Hyatt

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

21 Citations (Scopus)

Abstract

Silver exchanged zeolites A, X and Y were used to occlude silver iodide (AgI) at 400°C. Heating to 900°C in a hot isostatic press caused decomposition of the zeolite materials and the formation of more dense phases. Silver zeolites A and X both formed sodalite, seen as a potential 129I waste form, while silver zeolite Y formed an x-ray amorphous phase containing Agi. Silver zeolite A produced the best potential waste form, a monolithic sodalite with negligible porosity.

Original languageEnglish
Title of host publication29th International Symposium on the Scientific Basis for Nuclear Waste Management XXIX
Pages775-782
Number of pages8
Volume932
Publication statusPublished - 24 Jul 2006
Event29th International Symposium on the Scientific Basis for Nuclear Waste Management XXIX - Ghent, Belgium
Duration: 12 Sept 200516 Sept 2005

Conference

Conference29th International Symposium on the Scientific Basis for Nuclear Waste Management XXIX
Country/TerritoryBelgium
CityGhent
Period12/09/0516/09/05

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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