Studies of the preparation of thoria and thoria-urania microspheres using an internal gelation process

Journal Article · Fri Nov 01 04:00:00 EST 1991 · Nuclear Technology; (United States)

OSTI ID:5517271

Kumar, N; Sharma, R K; Ganatra, V R; Mukerjee, S K; Vaidya, V N; Sood, D D ^[1]

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1. Bhabha Atomic Research Centre, Fuel Chemistry Div., Trombay, Bombay 400 085 (IN)

This paper reports on an internal gelation process that has been studied for the preparation of thoria microspheres. The gelation behavior of an acid-deficient thorium nitrate solution (NO{sub 3}/Th{sup 4+} = 3.0) with hexamethylenetetramine and urea has been investigated to define a gelation field diagram that could be used to select compositions suitable for microsphere preparation. Thoria microspheres have been successfully prepared using many different compositions. The process has also been used to prepare (Th, U)O{sub 2} microspheres containing 5 and 10 mol% uranium.

• OSTI ID: 5517271
• Journal Information: Nuclear Technology; (United States), Journal Name: Nuclear Technology; (United States) Vol. 96:2; ISSN 0029-5450; ISSN NUTYB
• Country of Publication: United States
• Language: English

Related Subjects

050700* -- Nuclear Fuels-- Fuels Production & Properties
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
FABRICATION
MICROSPHERES
OXIDES
OXYGEN COMPOUNDS
SYNTHESIS
THORIUM COMPOUNDS
THORIUM OXIDES
URANIUM COMPOUNDS
URANIUM OXIDES