US3277017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
V2o5-ag3po4 containing oxidation catalysts
Assignee: Honeywell International Inc
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Filing: 1961-01-06
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Granted: 1966-10-04
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Expires: 1981-01-06
Abstract
No abstract record available.
Inventors
- 👤 Walter J Stefaniak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:21
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/16; C07C51/31; C07C51/313; B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/195; B01J27/198
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
52 words
A CATALYST COMPOSITION SUITABLE FOR THE VAPOR PHASE OXIDATION OF AN ORGANIC COMPOUND TO A DICARBOXYLIC ACID ANHYDRIDE COMPRISING A CARRIER COATED WITH A MIXTURE COMPRISING ESSENTIALLY VANADIUM PENTOXIDE AND, AS A MODIFIER, SILVER ORTHOPHOSPHATE IN AN AMOUNT EQUAL TO AT LEAST 2 PERCENT OF THE WEIGHT OF THE VANADIUM PENTOXIDE PRESENT.
Claim 2
Dependent Claim
52 words
A CATALYST COMPOSITION SUITABLE FOR THE VAPOR PHASE OXIDATION OF AN ORGANIC COMPOUND TO A DICARBOXYLIC ACID ANHYDRIDE COMPRISING A CARRIER COATED WITH A MIXTURE COMPRISING ESSENTIALLY VANADIUM PENTOXIDE AND, AS A MODIFIER, SILVER ORTHOPHOSPHATE IN AN AMOUNT EQUAL TO AT LEAST 2 PERCENT OF THE WEIGHT OF THE VANADIUM PENTOXIDE PRESENT.
Claim 3
Dependent Claim
105 words
A CATALYST COMPOSITION SUITABLE FOR THE VAPOR PHASE OXIDATION OF AN ORGANIC COMPOUND TO A DICARBOXYLIC ACID ANHYDRIDE COMPRISING A POROUS FUSED ALUMINUM OXIDE CARRIER COATED WITH A CATALYST COATING COMPRISING ESSENTIALLY A MIXTURE OF VANADIUM PENTOXIDE, MOLYBDENUM TRIOXIDE, URANIUM OXIDE AND SILVER ORTHOPHOSPHATE IN AMOUNTS CORRESPONDING TO A WEIGHT RATIO OF VANADIUM PENTOXIDE TO THE CATALYST COATING OF FROM ABOUT 60 TO ABOUT 85 PERCENT, A V2O5:MOO3 RATIO OF FROM 15:1 TO 1.2, BY WEIGHT, A WEIGHT RATIO OF URANIUM DIOXIDE TO THE CATALYST COATING OF ABOUT 1 PERCENT AND A WEIGHT RATIO OF SILVER ORTHOPHOSPHATE TO VANADIUM PENTOXIDE OF AT LEAST 2 PERCENT.
Claim 4
Dependent Claim
105 words
A CATALYST COMPOSITION SUITABLE FOR THE VAPOR PHASE OXIDATION OF AN ORGANIC COMPOUND TO A DICARBOXYLIC ACID ANHYDRIDE COMPRISING A POROUS FUSED ALUMINUM OXIDE CARRIER COATED WITH A CATALYST COATING COMPRISING ESSENTIALLY A MIXTURE OF VANADIUM PENTOXIDE, MOLYBDENUM TRIOXIDE, URANIUM OXIDE AND SILVER ORTHOPHOSPHATE IN AMOUNTS CORRESPONDING TO A WEIGHT RATIO OF VANADIUM PENTOXIDE TO THE CATALYST COATING OF FROM ABOUT 60 TO ABOUT 85 PERCENT, A V2O5:MOO3 RATIO OF FROM 15:1 TO 1.2, BY WEIGHT, A WEIGHT RATIO OF URANIUM DIOXIDE TO THE CATALYST COATING OF ABOUT 1 PERCENT AND A WEIGHT RATIO OF SILVER ORTHOPHOSPHATE TO VANADIUM PENTOXIDE OF AT LEAST 2 PERCENT.
Claim 5
Dependent Claim
40 words
A CATALYST COMPOSITION AS DESCRIBED IN CLAIM 7 WHEREIN THE COATING CONTAINS AN AMOUNT OF SILVER NITRATE, CALCULATED AS SILVER OXIDE, CORRESPONDING TO A WEIGHT RATIO OF SILVER OXIDE TO VANADIUM PENTOXIDE OF FROM ABOUT 1 TO ABOUT 15 PERCENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |