Cesium chloride compatibility testing program. Annual report, fiscal year 1985

Technical Report · Sat Mar 01 00:00:00 EST 1986

DOI:https://doi.org/10.2172/5907074· OSTI ID:5907074

Bryan, G H

At Hanford, fission product cesium, containing 20 to 40% /sup 137/Cs, has been recovered from the high-level waste (HLW) and converted to cesium chloride (CsCl). Recovery of the Cs, as a nitrate, from the HLW and its subsequent purification, takes place in B-Plant. Conversion of the purified product to CsCl, encapsulation of the CsCl, and water storage of the CsCl capsules takes place in the Waste Encapsulation and Storage Facility (WESF). The CsCl is doubly encapsulated in high-integrity 316L stainless steel (SS) capsules. The CsCl is loaded into the inner 316L SS capsules by melt casting. Each inner capsule, which has an ID of 2 in. (50.8 mm) and an inner length of approx.19 in. (483 mm), contains up to 3 kg of CsCl. The capsules contain up to approx.70,000 Ci of /sup 137/Cs, depending on the fission product Cs and the purity of the CsCl. To evaluate the potential hazards associated with the geologic disposal of the WESF CsCl capsules, reliable estimates of long-term attack of the capsule material by the CsCl at disposal temperatures are required. Available data on the compatibility of WESF-produced CsCl with 316L SS are not adequate for making the required evaluations. This report summarizes the program activities for FY 1985. 3 refs., 7 figs., 2 tabs.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5907074
• Report Number(s): PNL-5730; ON: DE86009040; TRN: 86-013173
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CESIUM CHLORIDES
COMPATIBILITY
CONTAINERS
CORROSION
HIGH-LEVEL RADIOACTIVE WASTES
UNDERGROUND DISPOSAL
STAINLESS STEEL-316L
HEAT TREATMENTS
MICROSTRUCTURE
CESIUM 137
EXPERIMENTAL DATA
HIGH TEMPERATURE
IMPURITIES
METALLOGRAPHY
RADIOACTIVE WASTE DISPOSAL
RISK ASSESSMENT
ALKALI METAL COMPOUNDS
ALKALI METAL ISOTOPES
ALLOYS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM COMPOUNDS
CESIUM ISOTOPES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
DATA
HALIDES
HALOGEN COMPOUNDS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
ISOTOPES
MANAGEMENT
MATERIALS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIOISOTOPES
STAINLESS STEELS
STEELS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
YEARS LIVING RADIOISOTOPES
360105* - Metals & Alloys- Corrosion & Erosion
052002 - Nuclear Fuels- Waste Disposal & Storage
360102 - Metals & Alloys- Structure & Phase Studies