US3344086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for removing ammonia from an ammonium zeolite
Assignee: Mobil Oil AS
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Filing: 1963-02-21
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Granted: 1967-09-26
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Expires: 1983-02-21
Abstract
No abstract record available.
Inventors
- 👤 Robert H Cramer
- 👤 Abbott F Houser
- 👤 Jr Kenneth I Jagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:37
CPC Classifications
B; B01; B01J; B01J21/00; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; C; C01; C01B; C01B33/00; C01B33/113; Y; Y10; Y10S; Y10S502/00; Y10S502/50; Y10S502/504
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A PROCESS FOR MANUFACTURING AN INORGANIC OXIDE GEL COMPOSITE CHARACTERIZED BY HIGH ATTRITION RESISTANCE AND DIFFUSIVITY BY DISPERSING IN AN INORGANIC OXIDE SOL A FINELY DIVIDED SOLID INSOLUBLE THEREIN, EFFECTING GELATION OF SAID SOL CONTAINING FINELY DIVIDED SOLID, REPLACING EXCHANGEABLE METAL IN THE RESULTING COMPOSITE WITH AMMONIUM IONS AND DRYING THE RESULTING HYDROGEL AT A TEMPERATURE SUFFICIENT TO RELEASE GASEOUS AMMONIA THEREFROM BUT BELOW THE FUSION POINT OF SAID SOLID, THE IMPROVEMENT WHICH COMPRISES IMMEDIATELY REMOVING RELEASED AMMONIA FROM CONTACT WITH SAID COMPOSITE BEFORE THE CONCENTRATION THEREOF IN THE SURROUNDING ATMOSPHERE EXCEEDS AN AMOUNT HAVING AN ADVERSE EFFECT ON THE GEL STRUCTURE OF SAID COMPOSITE.
Claim 2
Dependent Claim
106 words
IN A PROCESS FOR MANUFACTURING AN INORGANIC OXIDE GEL COMPOSITE CHARACTERIZED BY HIGH ATTRITION RESISTANCE AND DIFFUSIVITY BY DISPERSING IN AN INORGANIC OXIDE SOL A FINELY DIVIDED SOLID INSOLUBLE THEREIN, EFFECTING GELATION OF SAID SOL CONTAINING FINELY DIVIDED SOLID, REPLACING EXCHANGEABLE METAL IN THE RESULTING COMPOSITE WITH AMMONIUM IONS AND DRYING THE RESULTING HYDROGEL AT A TEMPERATURE SUFFICIENT TO RELEASE GASEOUS AMMONIA THEREFROM BUT BELOW THE FUSION POINT OF SAID SOLID, THE IMPROVEMENT WHICH COMPRISES IMMEDIATELY REMOVING RELEASED AMMONIA FROM CONTACT WITH SAID COMPOSITE BEFORE THE CONCENTRATION THEREOF IN THE SURROUNDING ATMOSPHERE EXCEEDS AN AMOUNT HAVING AN ADVERSE EFFECT ON THE GEL STRUCTURE OF SAID COMPOSITE.
References Cited (Backward Citations)
US3140252A
Cited
US3238147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |