Method of washing a solvent in the reprocessing of irradiated nu

Details Method of washing a solvent in the reprocessing of irradiated nu Method of washing a solvent in the reprocessing of irradiated nu

Filed on

1988-05-18

Date issued

1990-07-17

Examiner

Locker, Howard J.

Patent Class

Compositions

SubClass

Radioactive compositions

Other Related Categories

252631, 423 8, 423 9, 423 10, 376310, 376311, G21C 1942, G21C 1944, G21F 908, B01D 1100

Type

Patent

Status

active

Patent number

049419986

Description

ABSTRACT:
The invention is directed to a method of washing a solvent in the reprocessing of irradiated nuclear fuel. The solvent is washed with an aqueous solution in a mixer-settler having at least one stage which includes a mixing chamber and a settling chamber. The pH of the dispersion in the mixing chamber is measured and an amount of washing solution is added which influences the pH toward the desired operational value. An apparatus for carrying out the method is also disclosed.

REFERENCES:
patent: 4059671 (1977-11-01), Schmieder
patent: 4188361 (1980-02-01), Rowden
patent: 4574072 (1986-03-01), Horwitz et al.
patent: 4595529 (1986-06-01), Neace
patent: 4652431 (1987-03-01), Worthington et al.
patent: 4656011 (1987-04-01), Garraway et al.
patent: 4758411 (1988-07-01), Floreancig
"Atomkernenergie-Kerntechnik", vol. 35, (1980), pp. 81 to 93 by Franz Baurtner.
"Atomwirtschaft", vol. 26, No. 3, Mar. 1981, pp. 199 to 201.

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