Separation and recovery of molybdenum values from uranium process waste

Patent · Mon Apr 21 23:00:00 EST 1986

OSTI ID:5620649

Nalewajek, D; McCurry, L E; Friedland, D J; Eibeck, R E

A method is described of recovering molybdenum and uranium values from a process waste generated from the production of nuclear-grade uranium hexafluoride which consists of: (a) hydrolysing the process waste which contains UF/sub 6/, MoF/sub 6/ and MoOF/sub 4/ in an aqueous solution containing ammonium carbonate and ammonium hydroxide thereby forming ammonium uranyl carbonate; (b) digesting while maintaining a pH > 9, the resulting mother liquor at a temperature of about 60/sup 0/-80/sup 0/C. to evolve CO/sub 2/ and convert the ammonium uranyl carbonate to solid ammonium diuranate; (c) filtering, washing and drying the solid ammonium diuranate.

• Assignee: Allied Corp., Morris County, NJ
• Patent Number(s): US 4584184
• OSTI ID: 5620649
• Country of Publication: United States
• Language: English

Related Subjects

050600 -- Nuclear Fuels-- By-Products-- (-1987)
052001* -- Nuclear Fuels-- Waste Processing
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACTINIDE COMPOUNDS
ACTINIDES
AMMONIUM CARBONATES
AMMONIUM COMPOUNDS
AMMONIUM HYDROXIDES
AQUEOUS SOLUTIONS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
CLEANING
DECOMPOSITION
DISPERSIONS
DRYING
ELEMENTS
EXTRACTION
FILTRATION
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HIGH-LEVEL RADIOACTIVE WASTES
HYDROGEN COMPOUNDS
HYDROLYSIS
HYDROXIDES
LYSIS
MANAGEMENT
MATERIALS
MEDIUM TEMPERATURE
METALS
MIXTURES
MOLYBDENUM
MOLYBDENUM COMPOUNDS
MOLYBDENUM FLUORIDES
MOLYBDENUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
REFRACTORY METAL COMPOUNDS
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SOLVOLYSIS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
URANIUM
URANIUM COMPOUNDS
URANIUM FLUORIDES
URANIUM HEXAFLUORIDE
WASHING
WASTE MANAGEMENT
WASTE PROCESSING
WASTES