Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1979-02-22
1982-03-23
Schafer, Richard E.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
B01D 5900, B01D 5934
Patent
active
043211160
ABSTRACT:
Processes are disclosed for the separation of isotopes of an element comprising vaporizing uranyl compounds having the formula (UO.sub.2 A.sub.2).sub.n, where A is a monovalent anion and n is an integer from 2 to 4, the compounds having an isotopically shifted infrared absorption spectrum associated with uranyl ions containing said element which is to be separated, and then irradiating the uranyl compound with infrared radiation which is preferentially absorbed by a molecular vibration of uranyl ions of the compound containing a predetermined isotope of that element so that excited molecules of the compound are provided which are enriched in the molecules of the compound containing that predetermined isotope, thus enabling separation of these excited molecules. The processes disclosed include separation of the excited molecules by irradiating under conditions such that the excited molecules dissociate, and also separating the excited molecules by a discrete separation step. The latter includes irradiating the excited molecules by a second infrared laser in order to convert the excited molecules into a separable product, or also by chemically converting the excited molecules, preferably by reaction with a gaseous reactant.
REFERENCES:
patent: 4097384 (1978-06-01), Coleman et al.
Cox Donald M.
Maas, Jr. Edward T.
Exxon Research & Engineering Co.
Krumholz Arnold H.
Schafer Richard E.
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