US2823219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for conducting fluidized reactions
Assignee: Pan American Petroleum Corp
•
Filing: 1955-05-31
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Granted: 1958-02-11
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Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 Mungen Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:22
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0455; C07C1/0465; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/34; B01J8/44; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN THE PROCESS FOR EFFECTING A REACTION BETWEEN GASEOUS OR VAPOROUS REACTANTS WHICH REACTION IS CARRIED OUT IN THE PRESENCE OF A BED OF FLUIDIZED FINELY DIVIDED SOLIDS WHICH ARE CATALYST FOR SAID REACTION IN A REACTION ZONE, THE IMPROVEMENT WHICH COMPRISES SUPPLYING SAID REACTANTS TO SAID ZONE, UNDER REACTION CONDITIONS, UPWARDLY THROUGH SAID FINELY DIVIDED SOLIDS AT A SLOWLY INCREASING LINEAR VELOCITY UNTIL THE MINIMUM FLUIDIZATION VELOCITY OF SAID SOLIDS IS REACHED, THEREAFTER DISCONTINUING THE INTRODUCTION OF SAID REACTANTS TO SAID ZONE SO AS TO PERMIT SAID BED TO SETTLE IN SAID ZONE AND THEREAFTER REPEATING THE ABOVE CYCLE, SAID CYCLE COVERING A PERIOD OF FROM ABOUT TWO SECONDS TO ABOUT ONE MINUTE.
Claim 2
Dependent Claim
114 words
IN THE PROCESS FOR EFFECTING A REACTION BETWEEN GASEOUS OR VAPOROUS REACTANTS WHICH REACTION IS CARRIED OUT IN THE PRESENCE OF A BED OF FLUIDIZED FINELY DIVIDED SOLIDS WHICH ARE CATALYST FOR SAID REACTION IN A REACTION ZONE, THE IMPROVEMENT WHICH COMPRISES SUPPLYING SAID REACTANTS TO SAID ZONE, UNDER REACTION CONDITIONS, UPWARDLY THROUGH SAID FINELY DIVIDED SOLIDS AT A SLOWLY INCREASING LINEAR VELOCITY UNTIL THE MINIMUM FLUIDIZATION VELOCITY OF SAID SOLIDS IS REACHED, THEREAFTER DISCONTINUING THE INTRODUCTION OF SAID REACTANTS TO SAID ZONE SO AS TO PERMIT SAID BED TO SETTLE IN SAID ZONE AND THEREAFTER REPEATING THE ABOVE CYCLE, SAID CYCLE COVERING A PERIOD OF FROM ABOUT TWO SECONDS TO ABOUT ONE MINUTE.
References Cited (Backward Citations)
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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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |