Materials evaluation for a transuranic processing facility
- Pacific Northwest Lab., Richland, WA (USA)
The Westinghouse Hanford Company, with the assistance of the Pacific Northwest Laboratory, is developing a transuranium extraction process for preheating double-shell tank wastes at the Hanford Site to reduce the volume of transuranic waste being sent to a repository. The bench- scale transuranium extraction process development is reaching a stage where a pilot plant design has begun for the construction of a facility in the existing B Plant. Because of the potential corrosivity of neutralized cladding removal waste process streams, existing embedded piping alloys in B Plant are being evaluated and new'' alloys are being selected for the full-scale plant screening corrosion tests. Once the waste is acidified with HNO{sub 3}, some of the process streams that are high in F{sup {minus}} and low in Al and zr can produce corrosion rates exceeding 30,000 mil/yr in austenitic alloys. Initial results results are reported concerning the applicability of existing plant materials to withstand expected process solutions and conditions to help determine the feasibility of locating the plant at the selected facility. In addition, process changes are presented that should make the process solutions less corrosive to the existing materials. Experimental work confirms that Hastelloy B is unsatisfactory for the expected process solutions; type 304L, 347 and 309S stainless steels are satisfactory for service at room temperature and 60{degrees}C, if process stream complexing is performed. Inconel 625 was satisfactory for all solutions. 17 refs., 5 figs., 8 tabs.
- Research Organization:
- Westinghouse Hanford Co., Richland, WA (USA)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- AC06-87RL10930
- OSTI ID:
- 5963708
- Report Number(s):
- WHC-SA-0963; CONF-901101-84; ON: DE91011056
- Resource Relation:
- Conference: American Nuclear Society (ANS) winter meeting, Washington, DC (USA), 11-15 Nov 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
STAINLESS STEEL-304L
CORROSION
STAINLESS STEEL-309S
STAINLESS STEEL-347
TRANSURANIUM COMPOUNDS
RADIOACTIVE WASTE PROCESSING
ALUMINIUM
AUSTENITIC STEELS
BENCH-SCALE EXPERIMENTS
CLADDING
CONSTRUCTION
EVALUATION
FLUORINE IONS
HASTELLOY B
HASTELLOY S
INCONEL 625
MEDIUM TEMPERATURE
NITRIC ACID
PILOT PLANTS
PIPES
RADIOACTIVE WASTE FACILITIES
TANKS
ZIRCONIUM
ALLOY-NI61CR22MO9NB4FE3
ALLOY-NI62CR16MO15FE3
ALLOY-NI65MO28FE5
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
BORON ADDITIONS
BORON ALLOYS
CHARGED PARTICLES
CHEMICAL REACTIONS
CHROMIUM ADDITIONS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
COBALT ADDITIONS
COBALT ALLOYS
CONTAINERS
CORROSION RESISTANT ALLOYS
DEPOSITION
ELEMENTS
FUNCTIONAL MODELS
HASTELLOYS
HEAT RESISTANT MATERI
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
HYDROGEN COMPOUNDS
INCONEL ALLOYS
INORGANIC ACIDS
IONS
IRON ALLOYS
IRON BASE ALLOYS
LOW CA
MANAGEMENT
MATERIALS
METALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIU
NIOBIUM AL
NUCLEAR FACILITIES
PROCESSING
STAINLESS STEELS
STEEL-CR18NI11NB
STEEL-CR19NI10-L
STEEL-CR23NI14
STEELS
SURFACE COATING
TRANSITION ELEMENTS
VANADIUM ADDITIONS
VANADIUM ALLOYS
WASTE MANAGEMENT
WASTE PROCESSING
052001* - Nuclear Fuels- Waste Processing
360105 - Metals & Alloys- Corrosion & Erosion