US3118741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of volatile material from particulate solids
Assignee: Cities Service Research and Development Co
•
Filing: 1960-10-14
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Granted: 1964-01-21
•
Expires: 1980-10-14
Abstract
No abstract record available.
Inventors
- 👤 Kenneth H Faulk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:23
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
THE METHOD FOR REMOVING VOLATILE LIQUID MATERIAL FROM PARTICULATE SOLIDS CONTAINING THE SAME WHICH COMPRISES INTRODUCING SAID SOLIDS INTO A CONTACT ZONE HAVING A DOWNWARD SLANT OF BETWEEN ABOUT 5 AND ABOUT 30*, INTRODUCING HOT PARTICULATE SOLIDS FROM A KILN INTO SAID CONTACT ZONE, INTRODUCING HOT VAPOROUS MATERIAL INTO SAID CONTACT ZONE TO MIX SAID HOT SOLIDS WITH SAID SOLIDS CONTAINING LIQUID AND TO TRANSPORT THE RESULTING MIXTURE THROUGH SAID CONTACT ZONE, THE CROSS SECTIONAL AREA OF THE CONTACT ZONE INCREASING AS THE MIXTURE OF SOLIDS AND VAPORS PASSES THERETHROUGH WHEREBY SUBSTANTIALLY CONSTANT VELOCITY MAY BE MAINTAINED DURING VAPORIZATION OF AT LEAST A PORTION OF THE VOLATILE MATERIAL THEREIN, DISCHARGING SOLIDS AND VAPORS FROM SAID CONTACT ZONE INTO A SEPARATION ZONE WHEREIN VAPORS ARE SEPARATED FROM SOLIDS, WITHDRAWING VAPORS FROM SAID SEPARATION ZONE AND CONDENSING THE SAME, WITHDRAWING A PORTION OF THE SOLIDS FROM SAID SEPARATION ZONE, AND PASSING SAME UPWARDLY THROUGH A FLUIDIZED SECONDARY SEPARATION ZONE TO REMOVE RELATIVELY COARSER PARTICLES THEREFROM, PASSING SOLIDS FROM THE UPPER PORTION OF THE SECONDARY SEPARATION ZONE TO SAID KILN, AND WITHDRAWING THE REMAINDER OF THE SOLIDS FROM THE SEPARATION ZONE AND SLURRYING SAME WITH AT LEAST A PORTION OF THE CONDENSED VOLATILE MATERIAL FOR DISPOSAL.
Claim 2
Independent Claim
203 words
THE METHOD FOR REMOVING VOLATILE LIQUID MATERIAL FROM PARTICULATE SOLIDS CONTAINING THE SAME WHICH COMPRISES INTRODUCING SAID SOLIDS INTO A CONTACT ZONE HAVING A DOWNWARD SLANT OF BETWEEN ABOUT 5 AND ABOUT 30*, INTRODUCING HOT PARTICULATE SOLIDS FROM A KILN INTO SAID CONTACT ZONE, INTRODUCING HOT VAPOROUS MATERIAL INTO SAID CONTACT ZONE TO MIX SAID HOT SOLIDS WITH SAID SOLIDS CONTAINING LIQUID AND TO TRANSPORT THE RESULTING MIXTURE THROUGH SAID CONTACT ZONE, THE CROSS SECTIONAL AREA OF THE CONTACT ZONE INCREASING AS THE MIXTURE OF SOLIDS AND VAPORS PASSES THERETHROUGH WHEREBY SUBSTANTIALLY CONSTANT VELOCITY MAY BE MAINTAINED DURING VAPORIZATION OF AT LEAST A PORTION OF THE VOLATILE MATERIAL THEREIN, DISCHARGING SOLIDS AND VAPORS FROM SAID CONTACT ZONE INTO A SEPARATION ZONE WHEREIN VAPORS ARE SEPARATED FROM SOLIDS, WITHDRAWING VAPORS FROM SAID SEPARATION ZONE AND CONDENSING THE SAME, WITHDRAWING A PORTION OF THE SOLIDS FROM SAID SEPARATION ZONE, AND PASSING SAME UPWARDLY THROUGH A FLUIDIZED SECONDARY SEPARATION ZONE TO REMOVE RELATIVELY COARSER PARTICLES THEREFROM, PASSING SOLIDS FROM THE UPPER PORTION OF THE SECONDARY SEPARATION ZONE TO SAID KILN, AND WITHDRAWING THE REMAINDER OF THE SOLIDS FROM THE SEPARATION ZONE AND SLURRYING SAME WITH AT LEAST A PORTION OF THE CONDENSED VOLATILE MATERIAL FOR DISPOSAL.
References Cited (Backward Citations)
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GB775790A
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US2839451A
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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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |