Plutonium dissolution from Rocky Flats Plant incinerator ash

Conference · Sat Jun 01 04:00:00 EDT 1985

OSTI ID:5396077

Delegard, C H

Rockwell Hanford Operations (Rockwell) soon will commence recovery of plutonium from Rocky Flats Plant incinerator ash. In preparation for this processing, Rockwell undertook literature and laboratory studies to identify, select and optimize plutonium dissolution methods for treating the ash. Ash reburning, followed by dissolution in nitric acid containing calcium fluoride, was selected as the processing method for the ash. Recommended values of process parameters were identified. Using the selected process, 99.5% plutonium recovery was achieved, leaving about 12.7 wt % heel residue for an equal weight composite of the three ashes tested. 15 refs., 26 figs.

• Research Organization: Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
• DOE Contract Number: AC06-77RL01030
• OSTI ID: 5396077
• Report Number(s): RHO-RE-SA-95P; CONF-8505139-7; ON: DE85017053
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACTINIDES
ALKALINE EARTH METAL COMPOUNDS
ASHES
CALCIUM COMPOUNDS
CALCIUM FLUORIDES
CALCIUM HALIDES
CHEMICAL REACTIONS
COMBUSTION
DISSOLUTION
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INCINERATORS
INORGANIC ACIDS
MANAGEMENT
METALS
NATIONAL ORGANIZATIONS
NITRIC ACID
OXIDATION
PLUTONIUM
PROCESSING
RADIOACTIVE WASTE PROCESSING
RECOVERY
RESIDUES
ROCKY FLATS PLANT
THERMOCHEMICAL PROCESSES
TRANSURANIUM ELEMENTS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WASTE PROCESSING