US2815091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of titanium tetrachloride from chlorination gases
Assignee: Fabriques de Produits Chimiques de Thann et de Mulhouse
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Filing: 1955-11-18
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Granted: 1957-12-03
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Expires: 1975-11-18
Abstract
No abstract record available.
Inventors
- 👤 Robert J Mas
- 👤 Paul R Matthieussent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:43
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1218; C22B34/1222; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A PROCESS FOR THE RECOVERY OF TITANIUM TETRACHLORIDE FROM THE HOT GASES PRODUCED BY THE CHLORINATION OF OXIDIC TITANIFEROUS MATERIAL, SAID GASES CONTAINING SUBSTANTIALLY ALL THE METALLIC CHLORIDES VAPORIZED IN THE CHLORINATION, WHICH COMPRISES COOLING SAID GASES IN A CONDENSATION ZONE, AND BY CONTACTING THEM THEREIN WITH LIQUID TICL4, FROM A TEMPERATURE SUBSTANTIALLY ABOVE THE BOILING POINTS OF ALL SAID CHLORIDES TO A TEMPERATURE SUBSTANTIALLY BELOW SAID BOILING POINTS, THUS FORMING IN SAID ZONE A SUSPENSION OF SOLIDS IN LIQUID TICL4, CONTINUALLY WITHDRAWING SAID SUSPENSION FROM SAID ZONE AND MECHANICALLY SEPARATING SOLIDS FROM SAID SUSPENSION TO OBTAIN A SEPARATE LIQUID TICL4 IN WHICH ANY SOLIDS REMAINING ARE SO FINE AND SO DISPERSED THAT THEY STAY IN SUSPENSION, AND RETURNING INTO SAID ZONE AT LEAST A PART OF THE SEPARATE LIQUID TICL4 FOR COOLING A FURTHER FLOW OF SAID GASES
Claim 2
Dependent Claim
139 words
A PROCESS FOR THE RECOVERY OF TITANIUM TETRACHLORIDE FROM THE HOT GASES PRODUCED BY THE CHLORINATION OF OXIDIC TITANIFEROUS MATERIAL, SAID GASES CONTAINING SUBSTANTIALLY ALL THE METALLIC CHLORIDES VAPORIZED IN THE CHLORINATION, WHICH COMPRISES COOLING SAID GASES IN A CONDENSATION ZONE, AND BY CONTACTING THEM THEREIN WITH LIQUID TICL4, FROM A TEMPERATURE SUBSTANTIALLY ABOVE THE BOILING POINTS OF ALL SAID CHLORIDES TO A TEMPERATURE SUBSTANTIALLY BELOW SAID BOILING POINTS, THUS FORMING IN SAID ZONE A SUSPENSION OF SOLIDS IN LIQUID TICL4, CONTINUALLY WITHDRAWING SAID SUSPENSION FROM SAID ZONE AND MECHANICALLY SEPARATING SOLIDS FROM SAID SUSPENSION TO OBTAIN A SEPARATE LIQUID TICL4 IN WHICH ANY SOLIDS REMAINING ARE SO FINE AND SO DISPERSED THAT THEY STAY IN SUSPENSION, AND RETURNING INTO SAID ZONE AT LEAST A PART OF THE SEPARATE LIQUID TICL4 FOR COOLING A FURTHER FLOW OF SAID GASES
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |