Process for the removal of fission-product inert gases in the re

Details Process for the removal of fission-product inert gases in the re Process for the removal of fission-product inert gases in the re

1976-10-13

1978-10-31

Nelson, Peter A.

Plastic and nonmetallic article shaping or treating: processes

Shaping or treating radioactive material

2523011S, G21C 2100

Patent

active

041234847

ABSTRACT:
A process for the removal of fission-product inert gases from the waste gs of a reprocessing plant for nuclear fuel materials in which the nuclear fuel is subjected to comminution and, after burning off of graphitic components, is subjected to chemical solubilization, e.g. in an acid. During the solubilization, a sparging gas is passed through the solution which entrains with it the waste gases from the solubilizer or digestion vessel. After acid recovery, the gas phase is filtered and collected, a portion of the gas phase, constituting the sparging gas, is recirculated to the solubilizing unit and consists predominantly of fission-product inert gas (generally xenon, krypton and krypton isotopes).

REFERENCES:
patent: 3677958 (1972-07-01), Lonadier et al.
patent: 3720739 (1973-03-01), Hagie et al.
patent: 3865746 (1975-02-01), Rubin et al.
patent: 3981960 (1976-09-01), Brambilla et al.

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