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SUMMARY:New route for synthesis of Synroc-like ceramic using non-selective
  sorbent LHT-9
DTSTART;VALUE=DATE-TIME:20171101T060000Z
DTEND;VALUE=DATE-TIME:20171101T061500Z
DTSTAMP;VALUE=DATE-TIME:20260711T055925Z
UID:indico-contribution-1189@events01.synchrotron.org.au
DESCRIPTION:Speakers: Bella Zubekhina (researcher\, V.G. Khlopin Radium In
 stitute (KRI)\, St-Petersburg\, Russia)\nImmobilization of bulk liquid hig
 h level waste (HLW) in Synroc ceramic is well-known reliable way for final
  isolation of waste from biosphere. It is proposed the alternative method 
 of synthesis of titanate Synroc-like ceramic. Radionuclide incorporation i
 nto crystalline titanate host-phases can be provided as a result of direct
  radionuclide sorption from liquid HLW using non-selective sorbent – lay
 ered hydrazinium titanate (LHT-9). Such an approach allows excluding expen
 sive multi-stage procedure of precursor preparation. The precipitate obtai
 ned after sorption can be easily transformed into Synroc-like ceramic by c
 old pressing and sintering in air at 1000-1100°. The highly radioactive s
 amples of titanate ceramic loaded with 10 wt.% of real HLW were synthesize
 d and studied at KRI hot-cell facility. Chemical durability of these sampl
 es was tested using MCC-1 static leach test (in distilled water at 90°C) 
 and the leach rate was found to be comparable with Synroc ceramic.\n\nhttp
 s://events01.synchrotron.org.au/event/51/contributions/1189/
LOCATION:
URL:https://events01.synchrotron.org.au/event/51/contributions/1189/
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