US3009541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of titanium tetrachloride from sludges obtained in the purification of impure titanium tetrachloride
Assignee: Fabriques de Produits Chimiques de Thann et de Mulhouse
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Filing: 1959-03-19
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Granted: 1961-11-21
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Expires: 1979-03-19
Abstract
No abstract record available.
Inventors
- 👤 Mas Robert Jean
- 👤 Figuet Maurice Germain
- 👤 Michaud Andre Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:52
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
144 words
IN A PROCESS OF OBTAINING PURIFIED TITANIUM TETRACHLORIDE FROM METAL CHLORIDE CONTAINING GASES PRODUCED BY THE CHLORINATION OF TITANIFEROUS MATERIAL, WHEREIN A SLUDGE CONTAINING IMPURE LIQUID TICL4 AND SOLIDS IS FORMED AS A RESIDUE OF THE REMOVAL OF THE PURIFIED TICL4 FROM LIQUID TICL4 THAT HAS BEEN TREATED WITH A PURIFICATION AGENT AFTER HAVING BEEN CONDENSED FROM SUCH GASES, THE STEPS WHICH COMPRISE INTIMATELY CONTACTING SAID SLUDGE IN A FINELY DIVIDED FORM WITH A HOT STREAM OF SAID GASES IN A STAGE OF THE PATH OF SAID STREAM WHEREIN THE TEMPERATURE OF THE GASES IS SUFFICIENT TO VAPORIZE THE TICL4 CONTENT OF THE SLUDGE AND TO CONVERT THE SOLIDS CONTENT OF THE SLUDGE INTO FINELY DIVIDED DRY SOLIDS, IN A FURTHER STAGE OF SAID PATH SEPARATING THE SOLIDS IN A DRY CONDITION FROM THE GASES, AND THEN RECOVERING THE TICL4 CONTAINED IN THE GASES.
Claim 2
Dependent Claim
144 words
IN A PROCESS OF OBTAINING PURIFIED TITANIUM TETRACHLORIDE FROM METAL CHLORIDE CONTAINING GASES PRODUCED BY THE CHLORINATION OF TITANIFEROUS MATERIAL, WHEREIN A SLUDGE CONTAINING IMPURE LIQUID TICL4 AND SOLIDS IS FORMED AS A RESIDUE OF THE REMOVAL OF THE PURIFIED TICL4 FROM LIQUID TICL4 THAT HAS BEEN TREATED WITH A PURIFICATION AGENT AFTER HAVING BEEN CONDENSED FROM SUCH GASES, THE STEPS WHICH COMPRISE INTIMATELY CONTACTING SAID SLUDGE IN A FINELY DIVIDED FORM WITH A HOT STREAM OF SAID GASES IN A STAGE OF THE PATH OF SAID STREAM WHEREIN THE TEMPERATURE OF THE GASES IS SUFFICIENT TO VAPORIZE THE TICL4 CONTENT OF THE SLUDGE AND TO CONVERT THE SOLIDS CONTENT OF THE SLUDGE INTO FINELY DIVIDED DRY SOLIDS, IN A FURTHER STAGE OF SAID PATH SEPARATING THE SOLIDS IN A DRY CONDITION FROM THE GASES, AND THEN RECOVERING THE TICL4 CONTAINED IN THE GASES.
References Cited (Backward Citations)
US2792077A
Cited
US2849083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |