US3031384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of acetone, alcohol and water
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1959-09-15
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Granted: 1962-04-24
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Expires: 1979-09-15
Abstract
No abstract record available.
Inventors
- 👤 Lionel J Sirois
- 👤 Julian F Mote
- 👤 Austin G Habib
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:00
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/74; C07C29/76; C07C29/80; C07C29/82; C07C45/00; C07C45/78; C07C45/81; C07C45/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
PROCESS FOR CONCENTRATING COMPONENTS IN A LIQUID MIXTURE WHICH COMPRISES INTRODUCING A FEED CONTAINING ACETONE, ISOPROPYL ALCOHOL AND WATER INTO A DISTILLATION ZONE, WITHDRAWING VAPORIZED LIQUID COMPRISING AT LEAST A MAJOR PROPORTION OF ACETONE FROM SAID ZONE AT A POINT ABOVE THE PLACE WHERE THE FEED IS INTRODUCED, WITHDRAWING A LIQUID BOTTOMS STREAM FROM SAID ZONE AND WITHDRAWING A SIDE STREAM CONTAINING MAINLY ALCOHOL AND WATER IN ADMIXTURE WITH A SMALL AMOUNT OF ACETONE FROM SAID ZONE AT A POINT BELOW THE PLACE WHERE THE FEED IS INTRODUCED AND ABOVE THE BOTTOMS STREAM, SAID BOTTOMS STREAM COMPRISING THE BALANCE OF THE FEED.
Claim 2
Dependent Claim
102 words
PROCESS FOR CONCENTRATING COMPONENTS IN A LIQUID MIXTURE WHICH COMPRISES INTRODUCING A FEED CONTAINING ACETONE, ISOPROPYL ALCOHOL AND WATER INTO A DISTILLATION ZONE, WITHDRAWING VAPORIZED LIQUID COMPRISING AT LEAST A MAJOR PROPORTION OF ACETONE FROM SAID ZONE AT A POINT ABOVE THE PLACE WHERE THE FEED IS INTRODUCED, WITHDRAWING A LIQUID BOTTOMS STREAM FROM SAID ZONE AND WITHDRAWING A SIDE STREAM CONTAINING MAINLY ALCOHOL AND WATER IN ADMIXTURE WITH A SMALL AMOUNT OF ACETONE FROM SAID ZONE AT A POINT BELOW THE PLACE WHERE THE FEED IS INTRODUCED AND ABOVE THE BOTTOMS STREAM, SAID BOTTOMS STREAM COMPRISING THE BALANCE OF THE FEED.
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) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |