Collector for recovering gallium from weapons plutonium
- Texas A and M Univ., College Station, TX (United States). Dept. of Chemical Engineering
Currently, the separation of gallium from weapons plutonium involves the use of aqueous processing using either solvent extraction of ion exchange. However, this process generates significant quantities of liquid radioactive wastes. A Thermally Induced Gallium Removal process, or TIGR, developed by researchers at Los Alamos National Laboratories, is a simpler alternative to aqueous processing. This research examined this process, and the behavior of gallium suboxide, a vapor that is swept away by passing hydrogen/argon over gallium trioxide/plutonium oxide heated at 1100 C during the TIGR process. Through experimental procedures, efforts were made to prevent the deposition of corrosive gallium onto furnace and vent surfaces. Experimental procedures included three options for gallium removal and collection: (1) collection of gallium suboxide through use of a cold finger; (2) collection by in situ air oxidation; and (3) collection of gallium on copper. Results conclude all three collection mechanisms are feasible. In addition, gallium trioxide exists in three crystalline forms, and each form was encountered during each experiment, and that each form will have a different reactivity.
- Research Organization:
- Amarillo National Resource Center for Plutonium, TX (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); USDOE Office of Fissile Materials Disposition, Washington, DC (United States)
- DOE Contract Number:
- FC04-95AL85832
- OSTI ID:
- 290871
- Report Number(s):
- ANRCP--1998-14; ON: DE99001114; BR: DP0401065; GA0101012
- Country of Publication:
- United States
- Language:
- English
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