US3152196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stage efficiency in liquid-liquid extraction process
Assignee: Shell USA Inc
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Filing: 1960-12-21
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Granted: 1964-10-06
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Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 Marziani Alexander William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:47
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/04; B01D17/00; B01D17/02; B01D17/0208; B01D17/0211; B01D17/04; B01D17/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN THE SEPARATION OF THE PHASES OF AN EMULSION EMANATING FROM A LIQUID-LIQUID EXTRACTION OF C4 DIOLEFINS AND ACETYLENES FROM OTHER MORE SATURATED C4 HYDROCARBONS IN A C4 HYDROCARBON FRACTION WITH AN AQUEOUS AMMONIACAL CUPROUS ACETATE EXTRACTANT, THE IMPROVEMENT OF PARTIALLY COALESCING THE SEPARATE PHASES OF THE EXTRACTANT PHASE AND LIQUID C4 HYDROCARBON PHASE OF SAID EMULSION WHICH CONSISTS OF PASSING ALL OF SAID EMULSION THROUGH A FIXED PENETRABLE BARRIER OF FIBROUS POLYETHYLENE, SAID FIXED BARRIER HAVING A PACKING DENSITY FROM 10 LBS./FT.3 TO 14.8 LBS./FT.3, TO INCREASE THE SEPARATION RATE OF SAID RESPECTIVE LIQUID PHASES WHEN THEY SUBSEQUENTLY STRATIFY IN A SEPARATION ZONE.
Claim 2
Dependent Claim
104 words
IN THE SEPARATION OF THE PHASES OF AN EMULSION EMANATING FROM A LIQUID-LIQUID EXTRACTION OF C4 DIOLEFINS AND ACETYLENES FROM OTHER MORE SATURATED C4 HYDROCARBONS IN A C4 HYDROCARBON FRACTION WITH AN AQUEOUS AMMONIACAL CUPROUS ACETATE EXTRACTANT, THE IMPROVEMENT OF PARTIALLY COALESCING THE SEPARATE PHASES OF THE EXTRACTANT PHASE AND LIQUID C4 HYDROCARBON PHASE OF SAID EMULSION WHICH CONSISTS OF PASSING ALL OF SAID EMULSION THROUGH A FIXED PENETRABLE BARRIER OF FIBROUS POLYETHYLENE, SAID FIXED BARRIER HAVING A PACKING DENSITY FROM 10 LBS./FT.3 TO 14.8 LBS./FT.3, TO INCREASE THE SEPARATION RATE OF SAID RESPECTIVE LIQUID PHASES WHEN THEY SUBSEQUENTLY STRATIFY IN A SEPARATION ZONE.
References Cited (Backward Citations)
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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) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |