Improvements introduced in a double temperature exchange method for the concentration of isotopes. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in a double temperature exchange method for the concentration of isotopes, in which a fluid phase containing a first material is produced in it, exchanging said first material with a second material between a first and a second material at different temperatures. Chemically different fluid phases that are physically separable from each other and each of them is capable of containing each of said materials, said method being of the type in which (a) said second fluid phase is passed through each of a second and first units, in this order, of a pair of exchange units, (b) said first fluid phase is circulated in countercurrent contact with said second fluid phase in each of said first and second units of said pair, (c) said first and second units are maintained at different temperatures to make: (1) that said second fluid phase is progressively enriched in said pr imer material in said second unit, and gradually become impoverished in said first material in said first unit of said pair; and (2) that said first fluid phase is progressively enriched in said first material in said first unit and progressively becomes impoverished in said first material in said second unit of said pair of units, and (d) enriched fluid passing between said units, whose improvements comprise: (e) increasing, in a part of said second unit, the proportional amount of first fluid phase in contact with the second fluid phase after said second fluid phase has reached an increased level of enrichment of said first phase. Material in it, while (f) decreasing, in a part of said first unit, the proportional amount of first fluid phase in contact with the second fluid phase after said second fluid phase has reached an increased level of impoverishment of said liquid phase. First material in it. (Machine-translation by Google Translate, not legally binding)