Method for purifying plutonium hexafluoride

Details Method for purifying plutonium hexafluoride Method for purifying plutonium hexafluoride

1977-08-24

1979-10-23

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

55 71, 55 72, 423251, C01G 5600

Patent

active

041721144

ABSTRACT:
An effective method for purifying plutonium hexafluoride for the reprocessing of the spent nuclear fuel or for the recovery of fuel plutonium from the scrap by fluoride-volatility with high decontamination factors is presented using a selective adsorption of the fission products fluorides by letting the gas mixture flow through a layer of an adsorbent consisting of one or more of the specified compounds selected from hexafluoro sodium aluminate, zinc fluoride, nickel fluoride and ferric fluoride at an elevated temperature. The principle of the purification method is based on the fact that the fluorides of the fission products are easily adsorbed by the adsorbent but little plutonium hexafluoride is adsorbed. The fluorides of the fission products are easily removed from the adsorbent by heating and the recycling use of the adsorbent is possible.

REFERENCES:
patent: 3165376 (1965-01-01), Golliner
patent: 3178258 (1965-04-01), Cathers et al.
patent: 3294493 (1966-12-01), Jonke et al.
patent: 3423190 (1969-01-01), Steindler et al.
patent: 3625661 (1971-12-01), Anderson et al.

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