US2903423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removing soot from an aqueous slurry by means of an oil-in-water emulsion
Assignee: Shell Development Co
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Filing: 1957-06-10
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Granted: 1959-09-08
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Expires: 1977-06-10
Abstract
No abstract record available.
Inventors
- 👤 Mondria Hendrik
- 👤 Logman Willem Hendrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:28
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN A PROCESS FOR REMOVING SOOT FROM SUSPENSION IN WATER, EMPLOYING A LIQUID HYDROCARBON AND WHEREIN SAID HYDROCARBON IS MIXED INTO THE WATER-SOOT SUSPENSION TO FORM SOOT-HYDROCARBON AGGLOMERATES WHICH SEPARATES TO THE WATER SURFACE AND ARE REMOVED THEREFROM, THE IMPROVEMENT COMPRISING INTIMATELY MIXING AN ADDED AQUEOUS EMULSION OF THE LIQUID HYDROCARBON INTO THE WATER-SOOT SUSPENSION, SAID HYDROCARBON EMULSION BEING SUPPLIED IN AN AMOUNT EFFECTIVE TO FORM AGGLOMERATES OF THE SOOT AND HYDROCARBON, CONTINUING THE MIXING AND PROMPTLY SEPARATING THE FORMED AGGLOMERATES TO THE SURFACE OF THE WATER WITHOUT THE INTERMEDIATE FORMATION OF A STABLE EMULSION OF HYDROCARBON IN ALL OF THE WATER OF SAID MIXTURE, SAID FORMATION OF THE AGGLOMERTES AND THEIR SEPARATION TO THE WATER SURFACE BEING ACHIEVED IN SIGNIFICANTLY LESS TIME THAN IS REQUIRED WITH THE USE OF THE HYDROCARBON ALONE FOR THIS PURPOSE, AND THEREAFTER REMOVING THE AGGLOMERATES FROM THE WATER SURFACE.
Claim 2
Dependent Claim
145 words
IN A PROCESS FOR REMOVING SOOT FROM SUSPENSION IN WATER, EMPLOYING A LIQUID HYDROCARBON AND WHEREIN SAID HYDROCARBON IS MIXED INTO THE WATER-SOOT SUSPENSION TO FORM SOOT-HYDROCARBON AGGLOMERATES WHICH SEPARATES TO THE WATER SURFACE AND ARE REMOVED THEREFROM, THE IMPROVEMENT COMPRISING INTIMATELY MIXING AN ADDED AQUEOUS EMULSION OF THE LIQUID HYDROCARBON INTO THE WATER-SOOT SUSPENSION, SAID HYDROCARBON EMULSION BEING SUPPLIED IN AN AMOUNT EFFECTIVE TO FORM AGGLOMERATES OF THE SOOT AND HYDROCARBON, CONTINUING THE MIXING AND PROMPTLY SEPARATING THE FORMED AGGLOMERATES TO THE SURFACE OF THE WATER WITHOUT THE INTERMEDIATE FORMATION OF A STABLE EMULSION OF HYDROCARBON IN ALL OF THE WATER OF SAID MIXTURE, SAID FORMATION OF THE AGGLOMERTES AND THEIR SEPARATION TO THE WATER SURFACE BEING ACHIEVED IN SIGNIFICANTLY LESS TIME THAN IS REQUIRED WITH THE USE OF THE HYDROCARBON ALONE FOR THIS PURPOSE, AND THEREAFTER REMOVING THE AGGLOMERATES FROM THE WATER SURFACE.
References Cited (Backward Citations)
US2599496A
Cited
US2761563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |