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US2956015A Expired / Lapsed US ⏱️ 0.0 years remaining

Combined solid adsorbent and liquid absorbent and method of using same

Assignee: Phillips Petroleum Co
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Filing: 1956-10-18
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Granted: 1960-10-11
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Expires: 1976-10-18
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Abstract

No abstract record available.

Inventors

  • 👤 Paul D Hann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 14:01
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01D53/1493

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 191 words
THE SEPARATION OF A CATALYTICALLY REFORMED HYDROCARBON MATERIAL INTO A FRACTION RICH IN AROMATICS AND OTHER FRACTIONS CONTAINING NORMALLY HYDROCARBONS, ISOPARAFFIN HYDROCARBONS, AND NAPHTHENIC HYDROCARBONS WHICH COMPRISES CONTACTING SAID HYDROCARBON WITH A SOLID ADSORBENT DISPERSED IN A LIQUID SOLVENT, ANY SOLVENT USED IN THE SEPARATION BEING CHARACTERIZED IN THAT THE SOLVENT IS NOT RECEIVED INTO THE PORES OF THE SOLID ADSORBENT, THE SAID SOLID ADSORBENT BEING SELECTIVE TO NORMAL HYDROCARBONS AND THE SAID LIQUID BEING SELECTIVE TO AROMATICS, AND BEING CAPABLE OF UNDERGOING A PHASE SEPARATION WHEN SAID AROMATIC HYDROCARBONS ARE PRESENT THEREIN TO YIELD A PHASE CONTAINING SAID LIQUID RICH IN AROMATICS AND POOR IN ISOHYDROCARBONS AND NAPHTHENIC HYDROCARBONS, AFTER SAID CONTACTING SEPARATING SAID SOLID ADSORBENT AND SAID SOLVENT FROM EACH OTHER AND SEPARATELY RECOVERING FROM EACH OF SAID SOLID ADSORBENT AND SAID SOLVENT, AFTER THEIR SEPARATION, THE AROMATIC HYDROCARBONS ABSORBED IN SAID SOLVENT FROM SAID SOLVENT, THE NORMAL HYDROCARBONS ADSORBED IN SAID SOLID ADSORBENT FROM SAID SOLID ADSORBENT, AND RECOVERING ALSO AS A THIRD AND SEPARATE STREAM, ISOPARAFFINIC HYDROCARBONS AND NAPHTHENIC HYDROCARBONS WHICH WERE NOT ADSORBED IN SAID SOLID ADSORBENT AND WHICH WERE NOT ADSORBED IN SAID LIQUID SOLVENT.

References Cited (Backward Citations)

US2681335A Cited
US2522426A Cited
US2585490A Cited
US2743818A Cited
US2770663A Cited
US2779718A Cited
US2818449A Cited
US2886522A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1963-10-11 1964-04-11 1964-10-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1967-10-11 1968-04-11 1968-10-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1971-10-11 1972-04-11 1972-10-11 $7700.00 Window Closed / Lapsed

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