Process for the preparation of uranium tetrafluoride by the redu

Details Process for the preparation of uranium tetrafluoride by the redu Process for the preparation of uranium tetrafluoride by the redu

1988-04-01

1989-08-22

Hunt, Brooks H.

Chemistry of inorganic compounds

Radioactive

Uranium compound

423258, 423 19, 423469, 423565, C01G 4306, C01B 1745

Patent

active

048594415

ABSTRACT:
A process for the preparation of uranium tetrafluoride by reduction of gaseous uranium hexafluoride using: (1) sulphur vapor with a minimum of halogen and/or a halide, chosen from among Cl.sub.2, Br.sub.2, S.sub.2 F.sub.2, SCL.sub.2, S.sub.2 Cl.sub.2, and S.sub.2 Br.sub.2 ; or (2) a minimum of one sulphur halide chosen from among S.sub.2 F.sub.2, SCL.sub.2, S.sub.2 CL.sub.2, and S.sub.2 Br.sub.2. The ratio R of the total number of gram-atoms of sulphur present during the reduction reaction to the number of gram-moles of UF.sub.6 is at least 0.6.

REFERENCES:
patent: 2638406 (1953-05-01), Tevebaugh et al.
patent: 2768872 (1956-10-01), Klein et al.
patent: 2907629 (1959-10-01), Smiley et al.
patent: 3251644 (1966-05-01), O'Donnell
patent: 4693795 (1987-09-01), Eccles et al.
Journal of Fluorine Chemistry, 20 (1982) 277-280, "Preparation of Pure Sulfur Tetrafluoride for Synthesis of Isotopically Substituted Compounds", L. B. Asprey and E. M. Foltyn.

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