Patent US2865835A successfully refreshed from Google Patents.
US2865835A
Expired / Lapsed
US
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Flash distillation process
Assignee: Phillips Petroleum Co
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Filing: 1954-01-06
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Granted: 1958-12-23
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Expires: 1974-01-06
Abstract
No abstract record available.
Inventors
- 👤 Charley H Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:57
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/06; B01D3/065
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
209 words
A PROCESS COMPRISING INTRODUCING A REDUCED PETROLEUM CRUDE INTO A FIRST FLASH SECTION OF A DISTILLATION ZONE UNDER THE FLASHING CONDITION TO VAPORIZE A PORTION OF SAME; PASSING VAPOR THUS FORMED INTO A FIRST CONDENSING SECTION IN SAID ZONE AND CONDENSING SAME THEREIN; SUBJECTING UNVAPORIZED LIQUID FROM SAUD FIRST FLASH SECTION TO VISBREAKING AND PASSING RESIDUUM PRODUCET FROM SAID VISBREAKING INTO A SECOND FLASH SECTION IN SAID DISTILLATION ZONE UNDER FLASHING CONDITIONS TO VAPORIZE A PORTION OF SAME; PASSING VAPORS FORMED IN SAID SECOND FLASH SECTION, INTO A SECOND CONDENSING SECTION IN SAID ZONE AND CONDENSING SAME THEREIN; SUBJECTING RESIDUUM FROM SAID SECOND FLASH SECTION TO RECYCLE CRACKING AND PASSING RESIDUUM PROJECT FROM SAID CRACKING INTO A THIRD FLASH SECTION OF SAID DISTILLATION ZONE UNDER FLASHING CONDITIONS TO VAPORIZE A PORTION OF SAME; PASSING VAPORS FORMED IN SAID THIRD FLASH SECTION INTO A THIRD CONDENSING SECTION IN SAID ZONE, AND CONDENSING SAME THEREIN; SUBJECTING CONDENSATE FROM SAID THIRD CONDENSING ZONE TO RECYCLE CRACKING AND PASSING RESIDUUM PRODUCT FROM THE LAST SAID CRACKING INTO A FOURTH FLASH SECTION IN SAID ZONE UNDER FLASHING CONDITION TO VAPORIZE A PORTION THEREOF; AND RECOVERING AS PRODUCT OF THE PROCESS A VIRGIN GAS OIL CONDENSATE, A RESIDUAL PITCH AND AN AROMATIC GAS OIL CONDENSATE.
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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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |