Patent US3078144A successfully refreshed from Google Patents.
US3078144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing purified titanium trichloride
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1959-03-09
•
Granted: 1963-02-19
•
Expires: 1979-03-09
Abstract
No abstract record available.
Inventors
- 👤 Delos E Bown
- 👤 Henry G Schutze
- 👤 Albert T Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:24
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/02; C01G23/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A METHOD FOR PREPARING FINELY DIVIDED VIOLET TITANIUM TRICHLORIDE CRYSTALS SUBSTANTIALLY FREE OF TITANIUM DICHLORIDE AND TITANIUM TETRACHLORIDE WHICH COMPRISES CONTINUOUSLY PASSING AN ADMIXTURE OF HYDROGEN AND TITANIUM TETRACHLORIDE AS REACTANT GASES THROUGH A REACTION ZONE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 600*C. TO ABOUT 1300*C., THEREAFTER INTRODUCING A QUENCH GAS UNDER CONDITIONS TO REDUCE THE EFFLUENT FROM SAID REACTION ZONE TO A TEMPERATURE WITHIN THE RANGE FROM ABOUT 140*C. TO ABOUT 250*C., THE REACTANT AND QUENCH GAS FLOW RATES AND TEMPERATURES BEING SO REGULATED AS TO PRODUCE A REDUCTIION OF FROM ABOUT 2 TO ABOUT 50 VOLUME PERCENT OF SAID TITANIUM TETRACHLORIDE IN SAID REACTION ZONE TO FINELY DIVIDED VIOLET CRYSTALS OF TITANIUM TRICHLORIDE, THE AMOUNT OF HYDROGEN FEED BEING IN EXCESS OF THAT REACTED IN THE REDUCTION OF TITANIUM TETRACHLORIDE TO TITANIUM TRICHLORIDE, AND IMMEDIATELY AFTER SAID QUENCHING STEP, SEPARATING SAID TITANIUM TRICHLORIDE CRYSTALS FROM THE EFFLUENT GASES.
Claim 2
Independent Claim
152 words
A METHOD FOR PREPARING FINELY DIVIDED VIOLET TITANIUM TRICHLORIDE CRYSTALS SUBSTANTIALLY FREE OF TITANIUM DICHLORIDE AND TITANIUM TETRACHLORIDE WHICH COMPRISES CONTINUOUSLY PASSING AN ADMIXTURE OF HYDROGEN AND TITANIUM TETRACHLORIDE AS REACTANT GASES THROUGH A REACTION ZONE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 600*C. TO ABOUT 1300*C., THEREAFTER INTRODUCING A QUENCH GAS UNDER CONDITIONS TO REDUCE THE EFFLUENT FROM SAID REACTION ZONE TO A TEMPERATURE WITHIN THE RANGE FROM ABOUT 140*C. TO ABOUT 250*C., THE REACTANT AND QUENCH GAS FLOW RATES AND TEMPERATURES BEING SO REGULATED AS TO PRODUCE A REDUCTIION OF FROM ABOUT 2 TO ABOUT 50 VOLUME PERCENT OF SAID TITANIUM TETRACHLORIDE IN SAID REACTION ZONE TO FINELY DIVIDED VIOLET CRYSTALS OF TITANIUM TRICHLORIDE, THE AMOUNT OF HYDROGEN FEED BEING IN EXCESS OF THAT REACTED IN THE REDUCTION OF TITANIUM TETRACHLORIDE TO TITANIUM TRICHLORIDE, AND IMMEDIATELY AFTER SAID QUENCHING STEP, SEPARATING SAID TITANIUM TRICHLORIDE CRYSTALS FROM THE EFFLUENT GASES.
References Cited (Backward Citations)
US2681273A
Cited
US2657124A
Cited
US2684896A
Cited
US2767233A
Cited
US2783142A
Cited
US2720281A
Cited
US2905645A
Cited
US2886560A
Cited
US2874040A
Cited
US2962362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |