Method of making spherical metallic oxide and metallic carbide p

Details Method of making spherical metallic oxide and metallic carbide p Method of making spherical metallic oxide and metallic carbide p

1974-05-07

1976-07-20

Sebastian, Leland A.

Compositions

Organic luminescent material containing compositions

Scintillating or lasing compositions

264 5, 264 13, 264125, C09K 300

Patent

active

039705803

ABSTRACT:
A method of making spherical metallic oxide and metallic carbide particles, especially particles consisting of fuel or breeder material for nuclear reactors such as oxide or carbide compounds of uranium, plutonium, thorium and the like with a diameter of from 0.1 to 1.5 millimeters, according to which an aqueous solution of a metallic nitrate or a metallic chloride or a mixture of metallic nitrates or metallic chlorides in which the metallic ions and anions are in a stoichiometric ratio to each other, is added dropwise to an organic phase. The method according to the invention is characterized primarily in that the drops formed from said aqueous solution after congealing, are washed in an aqueous solution containing ammonia and from 0.001% to 0.1% of a non-ionic surface active agent, especially an ethylene oxide condensate, enveloping said particles and preventing them from clumping during the following drying step, drying the thus hardened particles in an air current having a temperature of from 150.degree. to 300.degree.C and an atmospheric moisture content corresponding to the degree of saturation of the air at a temperature of about from 20.degree. to 50.degree.C, and sintering the thus dried particles at about 1300.degree.C.

REFERENCES:
patent: 3290122 (1966-12-01), Clinton
patent: 3463842 (1969-08-01), Flack et al.
patent: 3812049 (1974-05-01), Noothout et al.
Hawley, G. G. Ed. The Condensed Chemical Dictionary, Van Nostrand Reinhold o., N.Y., 1971, p. 268, "Detergent."

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