A Study on characteristics of AUC Powder Prepared with the Waste AC Solution

폐 AC용액으로부터 제조된 AUC분말의 특성에 대한 연구

  • 정경채 (한국원자력연구소 응용연구그룹) ;
  • 김태준 (한국원자력연구소 응용연구그룹) ;
  • 최종현 (한국원자력연구소 응용연구그룹) ;
  • 박진호 (한국원자력연구소 응용연구그룹)
  • Published : 1996.03.01

Abstract

This study was investigated on the recycle feasibility of the waste AC(Ammonium Carbonate) solution produ-ced in a commercial AUC(Ammonium Uranyl Carbonate) conversion plant. AUC particles were produced with the AC solution which was prepared with AC solid-agent instead of ammonia and carbon-dioxide gases. As the results particles of monoclinic shapes has been obtained regardless of the pH change if the carbonate concentration is sufficient in the mother liquore. Also a lot of twinned or aggregated particles were formed in case of the increase of pH in the reaction system but not affected in the change of temperature. Consequen-tly the characteristics of the particles which converted for AUC were produced withAC solution to UO2, particles specific surface area shape sintered density and others were similar to that of the particles which were produced with gases only when the pellets are fabricated in the nuclear fuel manufacturing process So the waste AC solution which is produced in the commercial AUC conversion plant is possible to recycle.

Keywords

References

  1. Trans. Am. Nucl. Soc. v.31 Technology of UO₂Fuel Fabrication by the AUC Powder Process H. Assmann;M. Becker
  2. West Germany Patent 1,920,301 Nucleonically Pure Uranium by Precipitation Hans Pirk(et al.)
  3. British Patent 1,206,048 Uranium Dioxide Powder Production
  4. J. Nucl. Mat. v.99 The Conversion of UO₂via Ammonium Uranyl Carbonate: Study of Precipitation, Chemical Variation and Powder Properties Yi-Ming Pan;Che Bao Ma
  5. KAERI/RR-524/86 중수로 및 경수로용 UO₂ 분말 특성연구 장인순;박진호(외)
  6. KAERI/AR-206/83 변화공정의 비교 연구 장인순(외)
  7. Israel Program for Scientific Translations, Jerusalem Complex Compounds of Uranium I.I. Chernayaev
  8. Standard Test Method for Carbon dioxide and Bicarbonate and Carbonate Ion in Water v.1.01 ASTM
  9. Water Analysis W. Fresenius(et al.)
  10. J. Nucl. Mat. v.209 A Study on Morphology and Chemical Composition of Precipitates Produced from UO₂(NO₃)₂-(NH₄)₂CO₃Solution E.H. Kim;C.S. Choi(et al.)
  11. Chemical Engineers' Handbook R.H. Perry;C.H. Chilton