Patent US3004088A successfully refreshed from Google Patents.
US3004088A
Expired / Lapsed
US
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Alkylation process
Assignee: Phillips Petroleum Co
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Filing: 1958-10-13
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Granted: 1961-10-10
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Expires: 1978-10-13
Abstract
No abstract record available.
Inventors
- 👤 John F Hutto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:01
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/04; C07C7/005; C07C7/148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD FOR THE DEISOBUTANIZATION OF AN HF-ALKYLATE AND ITS SUBSTANTIALLY SIMULTANEOUS DEFLUORINATION WHICH COMPRISES THE STEPS IN COMBINATION AS FOLLOWS: FEEDING AN HF-ALKYLATE TO A DESIOBUTANIZING ZONE, REMOVING ISOBUTANE AS OVERHEAD FROM SAID ZONE, REMOVING NORMAL BUTANE AS A SIDE STREAM FROM SAID ZONE, REMOVING NORBOTTOMS FROM SAID ZONE, PASSING BOTTOMS THUS REMOVED INTO A DEFLUORINATING ZONE HEATED TO A DEFLUORINATING TEMPERATURE, RETURNING THUS-HEATED BOTTOMS TO THE BOTTOM OF SAID DEISOBUTANIZER ZONE, AND WITHDRAWING A PORTION OF THE THUS-HEATED BOTTOMS FROM THE DEISOBUTANIZER ZONE AS DEISOBUTANIZED AND DEFLUORINATED ALKYLATE.
Claim 2
Independent Claim
90 words
A METHOD FOR THE DEISOBUTANIZATION OF AN HF-ALKYLATE AND ITS SUBSTANTIALLY SIMULTANEOUS DEFLUORINATION WHICH COMPRISES THE STEPS IN COMBINATION AS FOLLOWS: FEEDING AN HF-ALKYLATE TO A DESIOBUTANIZING ZONE, REMOVING ISOBUTANE AS OVERHEAD FROM SAID ZONE, REMOVING NORMAL BUTANE AS A SIDE STREAM FROM SAID ZONE, REMOVING NORBOTTOMS FROM SAID ZONE, PASSING BOTTOMS THUS REMOVED INTO A DEFLUORINATING ZONE HEATED TO A DEFLUORINATING TEMPERATURE, RETURNING THUS-HEATED BOTTOMS TO THE BOTTOM OF SAID DEISOBUTANIZER ZONE, AND WITHDRAWING A PORTION OF THE THUS-HEATED BOTTOMS FROM THE DEISOBUTANIZER ZONE AS DEISOBUTANIZED AND DEFLUORINATED ALKYLATE.
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) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |