Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1976-06-17
1978-08-29
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
204DIG11, B01J 110
Patent
active
041101820
ABSTRACT:
A method of separating isotopes based on photoselective electron capture dissociation of molecules having an electron capture cross section dependence on the vibrational state of the molecule. A molecular isotope source material is irradiated to selectively excite those molecules containing a desired isotope to a predetermined vibrational state having associated therewith an electron capture energy region substantially non-overlapping with the electron capture energy ranges associated with the lowest vibration states of the molecules. The isotope source is also subjected to electrons having an energy corresponding to the non-overlapping electron capture region whereby the selectively excited molecules preferentially capture electrons and dissociate into negative ions and neutrals. The desired isotope may be in the negative ion product or in the neutral product depending upon the mechanism of dissociation of the particular isotope source used. The dissociation product enriched in the desired isotope is then separated from the reaction system by conventional means. Specifically, .sup.235 UF.sub.6 is separated from a UF.sub.6 mixture by selective excitation followed by dissociative electron capture into .sup.235 UF.sub.5 - and F.
REFERENCES:
patent: 3740552 (1973-06-01), Pressman
patent: 4000051 (1976-12-01), Kaldor
Henderson et al., Physical Review, 183(1), 1969, p. 157.
Carlson Dean E.
Croft Irene S.
Gaither Roger S.
The United States of America as represented by the United States
Williams Howard S.
LandOfFree
Isotope separation by photoselective dissociative electron captu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Isotope separation by photoselective dissociative electron captu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isotope separation by photoselective dissociative electron captu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1631584