US3214346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removing ash components from coke by leaching
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1962-01-16
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Granted: 1965-10-26
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Expires: 1982-01-16
Abstract
No abstract record available.
Inventors
- 👤 Mason Ralph Burgess
- 👤 Jr Charles Newton Kimberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:53
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/06; C25C3/08; C25C3/12; C25C3/125; C01; C01B; C01B32/00; C10; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10; C10G; C10G1/00; C10G1/002; C10L; C10L9/00; C10L9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD OF REMOVING ASH CONSTITUENTS FROM COKE PARTICLES PRODUCED IN A FLUID COKING PROCESS WHICH COMPRISES OXIDIZING THE COKE PARTICLES WITH AIR AT A RELATIVELY LOW TEMPERATURE BETWEEN ABOUT 650*F. AND 850*F. TO INCREASE THE POROSITY AND SURFACE AREA OF THE COKE PARTICLES, COOLING THE SO TREATED COKE PARTICLES AND THEN EXTRACTING THEM WITH AN AGENT SELECTED FROM THE GROUP CONSISTING OF AN AQUEOUS ALKALI METAL HYDROXIDE SOLUTION AND AN AQUEOUS HYDROGEN CHLORIDE SOLUTION TO REMOVE AT LEAST PART OF THE ASH CONSTITUENTS FROM THE COKE PARTICLES.
Claim 2
Independent Claim
88 words
A METHOD OF REMOVING ASH CONSTITUENTS FROM COKE PARTICLES PRODUCED IN A FLUID COKING PROCESS WHICH COMPRISES OXIDIZING THE COKE PARTICLES WITH AIR AT A RELATIVELY LOW TEMPERATURE BETWEEN ABOUT 650*F. AND 850*F. TO INCREASE THE POROSITY AND SURFACE AREA OF THE COKE PARTICLES, COOLING THE SO TREATED COKE PARTICLES AND THEN EXTRACTING THEM WITH AN AGENT SELECTED FROM THE GROUP CONSISTING OF AN AQUEOUS ALKALI METAL HYDROXIDE SOLUTION AND AN AQUEOUS HYDROGEN CHLORIDE SOLUTION TO REMOVE AT LEAST PART OF THE ASH CONSTITUENTS FROM THE COKE PARTICLES.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |