Isotope separation by photochromatography

Details Isotope separation by photochromatography Isotope separation by photochromatography

1975-10-03

1977-03-01

Adee, John

Gas separation

Means within gas stream for conducting concentrate to collector

55 68, B01D 1508

Patent

active

040101002

ABSTRACT:
An isotope separation method which comprises physically adsorbing an isotopically mixed molecular species on an adsorptive surface and irradiating the adsorbed molecules with radiation of a predetermined wavelength which will selectively excite a desired isotopic species. Sufficient energy is transferred to the excited molecules to desorb them from the surface and thereby separate them from the unexcited undesired isotopic species. The method is particularly applicable to the separation of hydrogen isotopes.

REFERENCES:
patent: 2863526 (1958-12-01), Salmon
patent: 3488921 (1970-01-01), Inchausne
patent: 3608273 (1971-09-01), Fabuss et al.
patent: 3891413 (1975-06-01), Sievers
O. Pringer, "Gas Chromatic Separation of Hydrogen Isotopes on Glass Powder", Column Chromatogr., Int. Symp.Separ. Methods, 5th, 1969(Pub.1970), 233 (Ger), as abstracted in Chem. Abstracts 76:53546h, (1972) p. 538.
L. H. Little, Infrared Spectra of Adsorbed Species, Academic Press, New York, 1966 pp. 297-308.
C. Bradley Moore, "The Application of Lasers to Isotope Separations", Accounts of Chemical Research 6 323 (1973).
E. Heftmann, Chromatography, Reinhold Pub. Co., New York, pp. 656-660, "Isotope Separation" (1966).

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