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US3226332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of potassium permanganate activated alumina composite
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1965-01-14
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Granted: 1965-12-28
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Expires: 1985-01-14
Abstract
No abstract record available.
Inventors
- 👤 Robert C Lincoln
- 👤 Harry E Osment
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:16
CPC Classifications
C; C09; C09K; C09K3/00; A; A61; A61L; A61L9/00; A61L9/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A METHOD OF PRODUCING A COMPOSITE CONSISTING ESSENTIALLY OF POTASSIUM PERMANGANATE SUBSTANTIALLY UNIFORMLY DISTRIBUTED THROUGHOUT A NODULAR SUPPORT OF ACTIVATED ALUMINA, SAID METHOD COMPRISING CALCINING AN ALUMINA TRIHYDRATE TO PRODUCE AN ALUMINA HAVING A LOSS ON IGNITION OF FROM 1% TO 15% BY WEIGHT AND BEING CAPABLE OF PARTIAL REHYDRATION, COMBINING SAID CALCINED ALUMINA WITH AN AQUEOUS SOLUTION OF POTASSIUM PERMANGANATE IN AN AMOUNT SUFFICIENT TO FORM A COHERENT MASS AND OF A CONCENTRATION WHICH WILL PROVIDE FROM 0.5% TO 10% MNO4-BASED ON THE DRY WEIGHT OF THE MASS, FORMING AGGLOMERATES OF SAID ALUMINA AND SAID AQUEOUS SOLUTION, CURING THE AGGLOMERATES TO EFFECT PARTIAL REHYDRATION OF THE ACTIVATED ALUMINA, AND DRYING THE PARTIALLY REHYDRATED AGGLOMERATES TO REMOVE UNCOMBINED WATER THEREFROM.
Claim 2
Independent Claim
120 words
A METHOD OF PRODUCING A COMPOSITE CONSISTING ESSENTIALLY OF POTASSIUM PERMANGANATE SUBSTANTIALLY UNIFORMLY DISTRIBUTED THROUGHOUT A NODULAR SUPPORT OF ACTIVATED ALUMINA, SAID METHOD COMPRISING CALCINING AN ALUMINA TRIHYDRATE TO PRODUCE AN ALUMINA HAVING A LOSS ON IGNITION OF FROM 1% TO 15% BY WEIGHT AND BEING CAPABLE OF PARTIAL REHYDRATION, COMBINING SAID CALCINED ALUMINA WITH AN AQUEOUS SOLUTION OF POTASSIUM PERMANGANATE IN AN AMOUNT SUFFICIENT TO FORM A COHERENT MASS AND OF A CONCENTRATION WHICH WILL PROVIDE FROM 0.5% TO 10% MNO4-BASED ON THE DRY WEIGHT OF THE MASS, FORMING AGGLOMERATES OF SAID ALUMINA AND SAID AQUEOUS SOLUTION, CURING THE AGGLOMERATES TO EFFECT PARTIAL REHYDRATION OF THE ACTIVATED ALUMINA, AND DRYING THE PARTIALLY REHYDRATED AGGLOMERATES TO REMOVE UNCOMBINED WATER THEREFROM.
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |