US3043771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the removal of sludge from a liquid stream
Assignee: Universal Oil Products Co
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Filing: 1959-09-10
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Granted: 1962-07-10
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Expires: 1979-09-10
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:19
CPC Classifications
B; B01; B01J; B01J47/00; B01J47/10; C; C10; C10G; C10G25/00; C10G25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A CONTINUOUS PROCESS FOR THE REMOVAL OF SLUDGE COMPRISING A LIQUID COMPLEX OF AN ACIDIC CATALYST AND HIGH BOILING HYDROCARBON POLYMERS FROM A HYDROCARBON LIQUID CONTAINING IN THE SAME WHICH COMPRISES MIXING SOLID GRANULAR ADSORBENT WITH SAID LIQUID TO FORM A SUSPENSION AND ADSORBING SAID SLUDGE ONTO AT LEAST A PORTION OF SAID ADSORBENT TO FORM SLUDGE-RICH PARTICLES AND SLUDGE-LEAN PARTICLES, THE SLUDGE-RICH PARTICLES HAVING A SETTLING RATE SLOWER THAN THE SETTLING RATE OF SAID SLUDGE-LEAN PARTICLES, FLOWING SAID SUSPENSION UPWARDLY THROUGH A PARTICLE SEPARATION ZONE AT A SUPERFICIAL LIQUID VELOCITY LESS THAN THE SETTLING RATE OF SAID SLUDGE-LEAN PARTICLES BUT GREATER THAN THE SETTLING OF SAID SLUDGE-RICH PARTICLES THEREBY ACCUMULATING A PREPONDERANCE OF SLUDGE-LEAN PARTICLES IN THE LOWER PORTION OF SAID PARTICLE SEPARATION ZONE AND A PREPONDERANCE OF SLUDGE-RICH PARTICLES IN THE UPPER PORTION THEREOF, WITHDRAWING THE RESULTANT SLUDGE-RICH SUSPENSION FROM SAID UPPER PORTION AND THEREAFTER SEPARATING CLARIFIED LIQUID FROM SAID SLUDGE-RICH SUSPENSION.
Claim 2
Dependent Claim
154 words
A CONTINUOUS PROCESS FOR THE REMOVAL OF SLUDGE COMPRISING A LIQUID COMPLEX OF AN ACIDIC CATALYST AND HIGH BOILING HYDROCARBON POLYMERS FROM A HYDROCARBON LIQUID CONTAINING IN THE SAME WHICH COMPRISES MIXING SOLID GRANULAR ADSORBENT WITH SAID LIQUID TO FORM A SUSPENSION AND ADSORBING SAID SLUDGE ONTO AT LEAST A PORTION OF SAID ADSORBENT TO FORM SLUDGE-RICH PARTICLES AND SLUDGE-LEAN PARTICLES, THE SLUDGE-RICH PARTICLES HAVING A SETTLING RATE SLOWER THAN THE SETTLING RATE OF SAID SLUDGE-LEAN PARTICLES, FLOWING SAID SUSPENSION UPWARDLY THROUGH A PARTICLE SEPARATION ZONE AT A SUPERFICIAL LIQUID VELOCITY LESS THAN THE SETTLING RATE OF SAID SLUDGE-LEAN PARTICLES BUT GREATER THAN THE SETTLING OF SAID SLUDGE-RICH PARTICLES THEREBY ACCUMULATING A PREPONDERANCE OF SLUDGE-LEAN PARTICLES IN THE LOWER PORTION OF SAID PARTICLE SEPARATION ZONE AND A PREPONDERANCE OF SLUDGE-RICH PARTICLES IN THE UPPER PORTION THEREOF, WITHDRAWING THE RESULTANT SLUDGE-RICH SUSPENSION FROM SAID UPPER PORTION AND THEREAFTER SEPARATING CLARIFIED LIQUID FROM SAID SLUDGE-RICH SUSPENSION.
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) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |