Patent US2822249A successfully refreshed from Google Patents.
US2822249A
Expired / Lapsed
US
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Separation process and apparatus
Assignee: Phillips Petroleum Co
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Filing: 1954-02-26
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Granted: 1958-02-04
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Expires: 1974-02-26
Abstract
No abstract record available.
Inventors
- 👤 Jones Jean Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:01
CPC Classifications
B; B01; B01D; B01D9/00; B01D9/004; B01D11/00; B01D11/02; B01D11/0215; B01D11/0223; B01D11/028; B01D9/0059
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A PROCESS FOR PURIFYING AN IMPURE SOLID MATERIAL, WHICH COMPRISES FORCING AN ELONGATED COMPRESSED MASS OF IMPURE SOLID MATERIAL THROUGH AN ELONGATED CONFINED DISPLACEMENT ZONE, INTRODUCING A SOLVENT FOR SAID MATERIAL INTO THE DOWNSTREAM END OF SAID ELONGATED ZONE, DISSOLVING SOLID MATERIAL IN SAID DOWNSTREAM END, REMOVING A PORTION OF THE RESULTING SOLUTION, COOLING SAID SOLUTION THEREBY CAUSING AT LEAST A PORTION OF THE MATERIAL BEING PURIFIED TO PRECIPITATE THEREFROM, RECOVERING SAID PRECIPITATED MATERIAL AS A PRODUCT OF THE PROCESS, HEATING THE SOLVENT FROM WHICH THE SOLID MATERIAL WAS RECOVERED, RETURNING SAID HEATED SOLVENT TO THE DOWNSTREAM END OF SAID DISPLACEMENT ZONE, FORCING A FURTHER PORTION OF THE SOLUTION THROUGH SAID DISPLACEMENT ZONE AND THROUGH AND COUNTERCURRENT TO SAID COMPRESSED MASS OF SOLID MATERIAL BY PRESSURE DISPLACEMENT RESULTING FROM THE MOVEMENT OF SAID COMPRESSED MASS OF SOLID MATERIAL, AND REMOVINGH THE RESULTING LIQUID TOGETHER WITH IMPURITIES FROM SAID DISPLACEMENT ZONE.
Claim 2
Dependent Claim
150 words
A PROCESS FOR PURIFYING AN IMPURE SOLID MATERIAL, WHICH COMPRISES FORCING AN ELONGATED COMPRESSED MASS OF IMPURE SOLID MATERIAL THROUGH AN ELONGATED CONFINED DISPLACEMENT ZONE, INTRODUCING A SOLVENT FOR SAID MATERIAL INTO THE DOWNSTREAM END OF SAID ELONGATED ZONE, DISSOLVING SOLID MATERIAL IN SAID DOWNSTREAM END, REMOVING A PORTION OF THE RESULTING SOLUTION, COOLING SAID SOLUTION THEREBY CAUSING AT LEAST A PORTION OF THE MATERIAL BEING PURIFIED TO PRECIPITATE THEREFROM, RECOVERING SAID PRECIPITATED MATERIAL AS A PRODUCT OF THE PROCESS, HEATING THE SOLVENT FROM WHICH THE SOLID MATERIAL WAS RECOVERED, RETURNING SAID HEATED SOLVENT TO THE DOWNSTREAM END OF SAID DISPLACEMENT ZONE, FORCING A FURTHER PORTION OF THE SOLUTION THROUGH SAID DISPLACEMENT ZONE AND THROUGH AND COUNTERCURRENT TO SAID COMPRESSED MASS OF SOLID MATERIAL BY PRESSURE DISPLACEMENT RESULTING FROM THE MOVEMENT OF SAID COMPRESSED MASS OF SOLID MATERIAL, AND REMOVINGH THE RESULTING LIQUID TOGETHER WITH IMPURITIES FROM SAID DISPLACEMENT ZONE.
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |