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US3767727A Expired / Lapsed US ⏱️ 0.0 years remaining

Treatment of propane in hf alkylation with purified hf

Assignee: Phillips Petroleum Co
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Filing: 1971-09-01
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Granted: 1973-10-23
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Expires: 1991-09-01
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Abstract

Abstract IN AN ALKYLATION OF AN ISOPARAFFIN WITH AN OLEFIN, A LIGHT HYDROCARBON PHASE, E.G., A PROPANE PHASE AND AN ACID PHASE, BOTH PHASES CONTAINING ORGANIC FLUORIDE, ARE RECOVERED UPON FRACTIONATION OF THE ALKYLATION REACTION EFFLUENT, THE ACID PHASE IS CONTACTED WITH ISOPARAFFIN TO REACT OUT ORGANIC FLUORIDE, ISOPARAFFIN PHASE AND ACID PHASE ARE THUS OBTAINED, THE ISOPARAFFIN PHASE CONTAINING ALKYLATE PRODUCED FROM THE ORGANIC FLUORIDE, THE ACID PHASE NOW CONTAINING RELATIVELY LESS ORGANIC FLUORIDE THEN BEING ADMIXED WITH THE LIGHT HYDROCARBON OR PROPANE CONTAINING PHASE, THUS REMOVING INTO THE ACID ORGANIC FLUORIDE IN SAID PHASE WHEREUPON THE ACID PHASE IS REACTED WITH ISOPARAFFIN TO PRODUCE ADDITIONAL ALKYLATE FROM THE ORGANIC FLUORIDE.

Inventors

  • 👤 C Chapman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 07:32
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/905

Claims Analysis

Total Claims: 0
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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) 1976-10-22 1977-04-23 1977-10-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-22 1981-04-23 1981-10-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-22 1985-04-23 1985-10-23 $7700.00 Window Closed / Lapsed

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