Extraction of deuterium from hydrogen gas using amines in a bithermal process
Abstract
Abstract IN THE EXTRACTION OF DEUTERIUM FROM HYDROGEN IN A BITHERMAL PROCESS FOR THE PRODUCTION OF HEAVY WATER, A STREAM CONTAINING A FIRST LIQUID AMINE WITH UP TO FIVE CARBON ATOMS PER MOLECULE IS USED AS THE EXCHANGE LIQUID IN ONE OF THE EXCHANGE REGIONS, AND STREAM CONTAINING A SECOND LIQUID AMINE WITH UP TO FIVE CARBON ATOMS PER MOLECULE OR AMMONIA IS USED AS THE EXCHANGE LIQUID IN THE OTHER EXCHANGE REGION, AND DEUTERIUM EXCHANGE BETWEEN THE TWO EXCHANGE LIQUID STREAMS IS CAUSED TO OCCUR UNDER CONDITIONS SUCH THAT COUNTERCURRENT CONTACT IS POSSIBLE, FOR EXAMPLE SUCH THAT ONE OF THE EXCHANGE LIQUID EXISTS SUBSTANTIALLY AS A VAPOR AND A PORTION OF THE FIRST OR SECOND EXCHANGE LIQUID ENRICHED IN DEUTERIUM IS SEPARATED AFTER EXCHANGE BETWEEN THE TWO LIQUID. THE AMINE MAY BE PRIMARY ALIPHATIC MONOAMINE OR DIAMINES.
Inventors
- 👤 A Bancroft
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |