#betta#-zirconium phosphate as a Cs-waste form for partitioned wastes
Description
#betta#-zirconium phosphate (#betta#-ZrP), #betta#-Zr(HPO4)2 . 2H2O is an extremely selective cesium ion sieve for nuclear waste solutions. Because of its layer structure, the adsorbed Cs can be directly fixed in #betta#-ZrP by collapsing the layers upon heat treatment. Fixation of 96 and 98% of the adsorbed Cs was achieved by simple heat treatment at 3500C and 6000C respectively. Thus, heat treatment of this #betta#-ZrP leads to a good radiophase with good leach resistance. Cs sorbed #betta#-ZrP can also be converted to CsZr2(PO4)3 [sodium zirconium phosphate (NZP) radiophase] by sintering with ammonium monobasic phosphate and zirconyl nitrate at about 8500C. Thus, #betta#-ZrP serves as a precursor to CsZr2(PO4)3 radiophase which has comparable leach resistance to other phases under consideration for radio-Cs immobilization
Additional details
Publishing Information
- Journal Title
- Mater. Res. Soc. Symp. Proc.
- Journal Volume
- 15
- Series
- Mater. Res. Soc. Symp. Proc.
- Journal Page Range
- 77-82
Conference
- Title
- 6. international symposium on the scientific basis for radioactive waste management (Materials Research Society).
- Dates
- 1-4 Nov 1982.
- Place
- Boston, MA (USA).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 14796810
- Subject category
- S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- ADSORPTION; CESIUM; EXPERIMENTAL DATA; HEAT TREATMENTS; ION EXCHANGE; LEACHING; MATRIX MATERIALS; RADIOACTIVE WASTE PROCESSING; ZIRCONIUM PHOSPHATES
- Descriptors DEC
- ALKALI METALS; DATA; DISSOLUTION; ELEMENTS; INFORMATION; MANAGEMENT; MATERIALS; METALS; NUMERICAL DATA; OXYGEN COMPOUNDS; PHOSPHATES; PHOSPHORUS COMPOUNDS; SEPARATION PROCESSES; TRANSITION ELEMENT COMPOUNDS; WASTE MANAGEMENT; WASTE PROCESSING; ZIRCONIUM COMPOUNDS
Optional Information
- Secondary number(s)
- CONF-821107--Pt.1.