Apparatus for washing a solvent in the reprocessing of irradiate

Details Apparatus for washing a solvent in the reprocessing of irradiate Apparatus for washing a solvent in the reprocessing of irradiate

1990-07-11

1992-04-14

Spear, Frank

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

210 961, 210143, 2101951, 2101981, 210248, 210259, 210511, 210519, 210521, 210743, 366152, 366160, 366169, 366292, 422111, 422159, 422225, 422256, 422259, B01D 1104

Patent

active

051045249

ABSTRACT:
The invention is directed to an apparatus for washing a solvent in the recessing 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 is measured by a sensor adjacent stirring means in the mixing chamber and is coupled to a controller controlling metering of the washing solution. 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. Various recycling means and weir overflow means also influence pH control and the washing operation.

REFERENCES:
patent: 1943684 (1934-01-01), Martin et al.
patent: 3489526 (1970-01-01), Roy et al.
patent: 3544079 (1970-12-01), Dressler
patent: 3663178 (1972-05-01), Miller et al.
patent: 3899294 (1975-08-01), Magiros
patent: 4271128 (1981-06-01), Schrodter et al.
patent: 4292277 (1981-09-01), Bonney et al.
patent: 4762796 (1988-08-01), Weber et al.

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