US3969204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for separating gaseous mixtures of isotopes
Assignee: Kraftwerk Union AG
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Filing: 1975-06-09
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Granted: 1976-07-13
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Expires: 1995-06-09
Abstract
Abstract Molecules to be separated from a mixture of matter of a chemical component are excited in a manner known per se by narrow-band light sources, and a chemical reaction partner for reacting with these molecules is admixed while supplied with energy by electromagnetic radiation or heating, as an addition required for making chemical reactions possible. The mixture and the partner are physically separated while the mixture is being excited and while the partner is being supplied with the energy, the two then being mixed together to cause the reaction.
Inventors
- 👤 Hans-Joachim Neimann
- 👤 Eberhard Schuster
- 👤 Arno Kersting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:11
CPC Classifications
B; B01; B01D; B01D59/00; B01D59/34; B01J; B01J19/00; B01J19/08; B01J19/12; B01J19/121
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
135 words
A method for chemically separating isotopes from a mixture of gaseous matter formed by mixed isotopes, by a chemical reaction partner, by a reaction directed by a light beam projected through the mixture with the light beam having a narrow band of wave lengths molecularly exciting mainly the isotope to be separated and thereby promoting its reaction with the reaction partner, and molecularly exciting the reaction partner with addition energy to a degree substantially reducing the energy of the laser beam required to promote said reaction in the absence of the addition of the energy to the reaction partner; wherein the improvement comprises maintaining said mixed isotopes and said partner physically separated from each other during the exciting of each, and prior to loss of their excited states mixing them together to cause said reaction.
Claim 2
Independent Claim
135 words
A method for chemically separating isotopes from a mixture of gaseous matter formed by mixed isotopes, by a chemical reaction partner, by a reaction directed by a light beam projected through the mixture with the light beam having a narrow band of wave lengths molecularly exciting mainly the isotope to be separated and thereby promoting its reaction with the reaction partner, and molecularly exciting the reaction partner with addition energy to a degree substantially reducing the energy of the laser beam required to promote said reaction in the absence of the addition of the energy to the reaction partner; wherein the improvement comprises maintaining said mixed isotopes and said partner physically separated from each other during the exciting of each, and prior to loss of their excited states mixing them together to cause said reaction.
Claim 3
Dependent Claim
16 words
The method of claim 1 in which said mixing is effected by swirling the two together.
References Cited (Backward Citations)
US3443087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |