Extraction method of tritium

Chemistry of inorganic compounds – Radioactive

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176 37, 2523011W, 423580, 423648A, C01B 400

Patent

active

041736206

ABSTRACT:
An extraction method of a high purity tritium gas from tritium-containing heavy water is disclosed. Tritium-containing heavy water is led from a heavy water source into an exchange reaction column wherein the heavy water is brought into contact with a tritium-containing heavy hydrogen to thereby transfer tritium in the heavy hydrogen into the heavy water by way of the exchange reaction to obtain a tritium-enriched heavy water. The resulting tritium-enriched heavy water is then led to a heavy hydrogen gas generator such as an electrolytic cell to generate a tritium-enriched heavy hydrogen, a part of which is recycled to the exchange reaction column and the remaining part thereof is led into a hot-wire type thermal diffusion column, e.g. cascade to enrich tritium. The thus enriched tritium gas is withdrawn from the thermal diffusion column cascade. The tritium-depleted heavy hydrogen withdrawn from the exchange reaction column is burnt to produce a tritium-depleted heavy water which is then recycled to both the heavy water source and the exchange reaction column.

REFERENCES:
patent: 3505017 (1970-04-01), Roth
patent: 4008050 (1977-02-01), Betz
Leger; D. et al., "Detritiation de l'eau lourde des Reacteurs Nucleaires", In Eneg. Nucl., (Paris), 12:135-142, 1970.

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