Patent US3766897A successfully refreshed from Google Patents.
US2772244A
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Titanium-phosphorus catalyst
Assignee: Standard Oil Co
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Filing: 1952-12-01
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Granted: 1956-11-27
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Expires: 1972-12-01
Abstract
No abstract record available.
Inventors
- 👤 Shalit Harold
- 👤 Arthur P Lien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:54
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR THE MANUFACTURE OF A SOLID, SELF-SUPPORTING CATALYST WHICH CONSISTS ESSENTIALLY OF MIXING A TITANIUM HALIDE SELECTED FROM THE GROUP CONSISTING OF THE CHLORIDES AND BROMIDES OF TITANIUM WITH A PHOSPHORIC ACID SELECTED FROM THE GROUP CONSISTING OF ORTHOPHOSPHORIC AND PYROPHOSPHORIC ACIDS IN AN ATOMIC RATIO OF HALOGEN TO ACTIVE HYDROGEN BETWEEN ABOUT 0.4:1 AND 1:1 AND HEATING THE RESULTING MIXTURE AT A TEMPERATURE ABOVE ABOUT 175* C. UNTIL EVOLUTION OF HYDROGEN HALIDE THEREFROM SUBSTANTIALLY CEASES.
Claim 2
Dependent Claim
78 words
A PROCESS FOR THE MANUFACTURE OF A SOLID, SELF-SUPPORTING CATALYST WHICH CONSISTS ESSENTIALLY OF MIXING A TITANIUM HALIDE SELECTED FROM THE GROUP CONSISTING OF THE CHLORIDES AND BROMIDES OF TITANIUM WITH A PHOSPHORIC ACID SELECTED FROM THE GROUP CONSISTING OF ORTHOPHOSPHORIC AND PYROPHOSPHORIC ACIDS IN AN ATOMIC RATIO OF HALOGEN TO ACTIVE HYDROGEN BETWEEN ABOUT 0.4:1 AND 1:1 AND HEATING THE RESULTING MIXTURE AT A TEMPERATURE ABOVE ABOUT 175* C. UNTIL EVOLUTION OF HYDROGEN HALIDE THEREFROM SUBSTANTIALLY CEASES.
References Cited (Backward Citations)
US2358011A
Cited
US2569092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |