US2773836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxide-promoted titanium-phosphorus catalyst
Assignee: Standard Oil Co
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Filing: 1952-12-01
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Granted: 1956-12-11
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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 12:16
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/16; B01J27/186; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A PROCESS FOR THE MANUFACTURE OF A SOLID, SELFSUPPORTING CATALYST WHICH CONSISTS ESSENTIALLY OF MIXING A SUBSTANTIALLY ANHYDROUS PHOSPHORIC ACID SELECTED FROM THE GROUP CONSISTING OF ORTHOPHOSPHORIC AND PYROPHOSPHORIC ACIDS, A TITANIUM HALIDE SELECTED FROM THE GROUP CONSISTING OF THE CHLORIDES AND BROMIDES OF TITANIUM IN AN ATOMIC RATIO OF HALOGEN TO ACTIVE HYDROGEN IN SAID ACID BETWEEN ABOUT 0.4: AND 1:1, AND A PROMOTER IN A CONCENTRATION BETWEEN ABOUT 0.5 AND 20 PERCENT BY WEIGHT BASED ON SAID ACID, SAID PROMOTER BEING SELECTED FROM THE CLASS CONSISTING OF GROUPS V AND VI METALLIC OXIDES HAVING HYDROGENATION-DEHYDROGENATION PROPERTIES, AND HEATING THE RESULTING MIXTURE AT A TEMPERATURE ABOVE ABOUT 175* C. UNTIL EVOLUTION OF HYDROGEN HALIDE THEREFROM SUBSTANTIALLY CEASES AND APPROXIMATES THE THEORETICAL QUANTITY OF HYDROGEN HALIDE.
Claim 2
Dependent Claim
126 words
A PROCESS FOR THE MANUFACTURE OF A SOLID, SELFSUPPORTING CATALYST WHICH CONSISTS ESSENTIALLY OF MIXING A SUBSTANTIALLY ANHYDROUS PHOSPHORIC ACID SELECTED FROM THE GROUP CONSISTING OF ORTHOPHOSPHORIC AND PYROPHOSPHORIC ACIDS, A TITANIUM HALIDE SELECTED FROM THE GROUP CONSISTING OF THE CHLORIDES AND BROMIDES OF TITANIUM IN AN ATOMIC RATIO OF HALOGEN TO ACTIVE HYDROGEN IN SAID ACID BETWEEN ABOUT 0.4: AND 1:1, AND A PROMOTER IN A CONCENTRATION BETWEEN ABOUT 0.5 AND 20 PERCENT BY WEIGHT BASED ON SAID ACID, SAID PROMOTER BEING SELECTED FROM THE CLASS CONSISTING OF GROUPS V AND VI METALLIC OXIDES HAVING HYDROGENATION-DEHYDROGENATION PROPERTIES, AND HEATING THE RESULTING MIXTURE AT A TEMPERATURE ABOVE ABOUT 175* C. UNTIL EVOLUTION OF HYDROGEN HALIDE THEREFROM SUBSTANTIALLY CEASES AND APPROXIMATES THE THEORETICAL QUANTITY OF HYDROGEN HALIDE.
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) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |