Patent US3847751A successfully refreshed from Google Patents.
US3847751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery and handling of asphalt containing a high concentration of asphaltene
Assignee: Foster Wheeler Inc
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Filing: 1973-06-12
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Granted: 1974-11-12
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Expires: 1993-06-12
Abstract
Abstract Asphalt produced as a by-product in a solvent deasphalting process is treated to result in a useful by-product. The asphaltsolvent mix is heated, subsequently the solvent is separated out as vapor and the asphalt is cooled to produce either a liquid useful as a fuel oil, a flaked material or as a powdered material which are also useful in industry.
Inventors
- 👤 R Godino
- 👤 O Morfit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:41
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/003; C10C; C10C3/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
203 words
AN APPARATUS FOR TREATING THE MIXTURE OF ASPHALT AND SOLVENT LEAVING A DEEP DEASPHALTING TOWER COMPRISING: A HEATER FOR HEATING SAID MIXTURE TO AT LEAST APPROXIMATELY 600*F; A SEPARATOR FOR SEPARATING SOLVENT FROM SAID MIXTURE; A SPRAY TOWER FOR SPRAYING ASPHALT THROUGH GAS; A MOVING COOLED SURFAC FOR RECEIVING THE ASPHALT PARTICLES SPARYED THROUGH SAID SPRAY TOWER; A COOLER; A SECOND COOLED BELT FOR RECEIVING ASPHALT; AND CONDUIT CONNECTING SAID HEATER WITH SAID SEPARATOR AND SAID SEPARATOR WITH SAID COOLER; A SECOND CONDUIT PATH CONNECTING SAID HEATER WITH SAID SPRAY TOWER; A FIRST VALVE IN SAID FIRST CONDUIT PATH; AND A SECOND VALVE IN SAID SECOND CONDUIT PATH; WHEREBY WHEN SAID FIRST VALVE IS CLOSED, ASPHALT WILL FLOW FROM SAID HEATER TO SAID SPRAY TOWER WHERE SAID ASPHALT WILL BE SEPARATED INTO SMALL PARTICLES AND SAID SOLVENT WILL SEPARATE FROM SAID ASPHALT INTO THE FORM OF VAPOR WITH SAID SOLIDIFIED PARTICLES FALLING ONTO SAID FIRST COOLED BELT AS POWDER OR ASPHALT PELLETS HAVING A HIGH CONCENTRATION OF ASPHALTENE AND WHEN SAID SECOND VALVE IS CHOKED AND SAID FIRST VALVE IS OPEN, ASPHALT WILL FLOW THROUGH SAID SEPARATOR ANS SAID COLLER ONTO SAID FIRST COOLED BELT TO PRODUCE ASPHALT FLAKES HIGH IN ASPHALTENE CONCENTRATION.
Claim 2
Independent Claim
203 words
AN APPARATUS FOR TREATING THE MIXTURE OF ASPHALT AND SOLVENT LEAVING A DEEP DEASPHALTING TOWER COMPRISING: A HEATER FOR HEATING SAID MIXTURE TO AT LEAST APPROXIMATELY 600*F; A SEPARATOR FOR SEPARATING SOLVENT FROM SAID MIXTURE; A SPRAY TOWER FOR SPRAYING ASPHALT THROUGH GAS; A MOVING COOLED SURFAC FOR RECEIVING THE ASPHALT PARTICLES SPARYED THROUGH SAID SPRAY TOWER; A COOLER; A SECOND COOLED BELT FOR RECEIVING ASPHALT; AND CONDUIT CONNECTING SAID HEATER WITH SAID SEPARATOR AND SAID SEPARATOR WITH SAID COOLER; A SECOND CONDUIT PATH CONNECTING SAID HEATER WITH SAID SPRAY TOWER; A FIRST VALVE IN SAID FIRST CONDUIT PATH; AND A SECOND VALVE IN SAID SECOND CONDUIT PATH; WHEREBY WHEN SAID FIRST VALVE IS CLOSED, ASPHALT WILL FLOW FROM SAID HEATER TO SAID SPRAY TOWER WHERE SAID ASPHALT WILL BE SEPARATED INTO SMALL PARTICLES AND SAID SOLVENT WILL SEPARATE FROM SAID ASPHALT INTO THE FORM OF VAPOR WITH SAID SOLIDIFIED PARTICLES FALLING ONTO SAID FIRST COOLED BELT AS POWDER OR ASPHALT PELLETS HAVING A HIGH CONCENTRATION OF ASPHALTENE AND WHEN SAID SECOND VALVE IS CHOKED AND SAID FIRST VALVE IS OPEN, ASPHALT WILL FLOW THROUGH SAID SEPARATOR ANS SAID COLLER ONTO SAID FIRST COOLED BELT TO PRODUCE ASPHALT FLAKES HIGH IN ASPHALTENE CONCENTRATION.
Claim 3
Dependent Claim
59 words
The apparatus defined in claim 1 further comprising a third conduit connected to said second conduit between said separator and said cooler, a line leading to said third conduit for adding flux oil into said asphalt, whereby said asphalt and said flux oil mixed to form a liquid asphalt high in asphaltene concentrate and useful as a fuel oil.
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |