Isotope separation process

Details Isotope separation process Isotope separation process

B - Operations, Transporting

01

D

204/91.8

B01D 59/38 (2006.01) B01D 59/34 (2006.01)

Patent

CA 1137442

(U.S. 37,877) ABSTRACT OF THE DISCLOSURE A method for the separation of isotopes is disclosed including providing a vapor of a compound of the element whose isotopes are to be separated, the compound having an isotopically shifted but overlapping infrared absorption spectrum associated with the isotopes of that element within a predetermined temperature range, irradiating the vapor with a predetermined fluence of infrared radiation which is preferentially absorbed by a molecular vibration of the molecules of the compound containing a predetermined isotope of the element, thereby providing excited molecules enriched in the predetermined isotope, while maintaining the vapor at a temperature within the predetermined temperature range which, at thermal equilibrium, provides sufficient molecules requiring more than a single photon to promote dissociation so that upon dissociation the isotopic selectivity is at least ten percent above the maximum selectivity which can be achieved with an ensemble of molecules, each of which can dissociate by absorbing a single photon. In a preferred embodiment, the isotopes of uranium are separated utilizing uranyl compounds having the formula UO2A2.L where A is a mono- valent anion and L is a neutral ligand having a basicity towards the uranyl ion equal to or stronger than that of tetrahydrofuran (THF).

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