US2897918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of halides
Assignee: Titanium Metals Corp
•
Filing: 1957-07-02
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Granted: 1959-08-04
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Expires: 1977-07-02
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Schlotthauer
- 👤 Linden E Snyder
- 👤 Leland R Lyons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:35
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1218; C22B34/1231; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
A METHOD FOR THE SEPARTION OF FECI3 FROM A HOT GASEOUS MIXTURE OF FECI3 AND OTHER GASES INCLUDING TICL4 WHICH COMPRISES; INTRODUCING PEBBLES OF INERT MATERIAL COOLED TO A TEMPERATURE ABOVE THE CONDENSATION TEMPERATURE OF TICL4 INTO THE TOPS OF A PAIR OF CONTACT COLUMNS, INTRODUCING INTO THE TOP OF ONE OF SAID COLUMNS SAID HOT GASEOUS MIXTURE, WITHDRAWING FROM THE BOTTOM OF SAID ONE COLUMN THE PEBBLES AND GAS MIXTURE COOLED TO A TEMPERASTURE BETWEEN THE CONDENSATION TEMPERATURE OF FECL3, AND 50* C. ABOVE THE CONDENSATION TEMPERATURE OF FECL3, PASS ING SAID COOLED GAS MIXTURE INTO THE BOTTOM OF THE OTHER COLUMN AND UPWARDLY THERETHROUGH THEREBY TO CONDENSE FECL3 ON THE SURFACES OF PEBBLES FLOWING DOWNWARDLY THEREIN, WITHDRAWING THE RESIDUAL GASES STRIPPED OF FECL3 FROM THE TOP OF SAID OTHER COLUMN AT A TEMPERATURE ABOVE THE CONDENSATION TEMPERATURE OF TICL4, WITHDRAWING PEBBLES WITH CONDENSED FECL3 FROM THE BOTTOM OF SAID OTHER COLUMN AT A TEMPERATURE BELOW THE CONDENSATION TEMPERATURE OF FECL3 AND ABOVE THE CONDENSATION TEMPERATURE OF TICL4, SEPARATING FECL3 FROM THE PEBBLES BY MECHANICAL MEANS, COOLING SAID PEBBLES FROM SAID COLUMNS TO A TEMPERATURE ABOVE THE CONDENSATION TEMPERATURE OF TICL4 AND RETURNING THE COOLING PABBLES FOR REINTRODUCTION INTO SAID COLUMNS.
Claim 2
Independent Claim
202 words
A METHOD FOR THE SEPARTION OF FECI3 FROM A HOT GASEOUS MIXTURE OF FECI3 AND OTHER GASES INCLUDING TICL4 WHICH COMPRISES; INTRODUCING PEBBLES OF INERT MATERIAL COOLED TO A TEMPERATURE ABOVE THE CONDENSATION TEMPERATURE OF TICL4 INTO THE TOPS OF A PAIR OF CONTACT COLUMNS, INTRODUCING INTO THE TOP OF ONE OF SAID COLUMNS SAID HOT GASEOUS MIXTURE, WITHDRAWING FROM THE BOTTOM OF SAID ONE COLUMN THE PEBBLES AND GAS MIXTURE COOLED TO A TEMPERASTURE BETWEEN THE CONDENSATION TEMPERATURE OF FECL3, AND 50* C. ABOVE THE CONDENSATION TEMPERATURE OF FECL3, PASS ING SAID COOLED GAS MIXTURE INTO THE BOTTOM OF THE OTHER COLUMN AND UPWARDLY THERETHROUGH THEREBY TO CONDENSE FECL3 ON THE SURFACES OF PEBBLES FLOWING DOWNWARDLY THEREIN, WITHDRAWING THE RESIDUAL GASES STRIPPED OF FECL3 FROM THE TOP OF SAID OTHER COLUMN AT A TEMPERATURE ABOVE THE CONDENSATION TEMPERATURE OF TICL4, WITHDRAWING PEBBLES WITH CONDENSED FECL3 FROM THE BOTTOM OF SAID OTHER COLUMN AT A TEMPERATURE BELOW THE CONDENSATION TEMPERATURE OF FECL3 AND ABOVE THE CONDENSATION TEMPERATURE OF TICL4, SEPARATING FECL3 FROM THE PEBBLES BY MECHANICAL MEANS, COOLING SAID PEBBLES FROM SAID COLUMNS TO A TEMPERATURE ABOVE THE CONDENSATION TEMPERATURE OF TICL4 AND RETURNING THE COOLING PABBLES FOR REINTRODUCTION INTO SAID COLUMNS.
References Cited (Backward Citations)
US2755887A
Cited
US2580635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |