US3132079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of an organic material by distillation and adsorption
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1960-12-21
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Granted: 1964-05-05
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Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 Epperly William Robert
- 👤 Johnson Russell Robarts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:16
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/143; C; C10; C10G; C10G25/00; C10G25/02; C10G25/03; C10G25/12; C10G7/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
176 words
A PROCESS FOR RECOVERING A STREAM OF SUBSTANTIALLY PURE ORGANIC MATERIAL FROM A FEED STREAM CONTAINING SAID ORGANIC MATERIAL IN ADMIXTURE WITH AN IMPURITY, SAID IMPURITY HAVING A BOILING POINT WHICH DIFFERS FROM THE BOILING POINT OF SAID ORGANIC MATERIAL AND BEING CAPABLE OF BEING SELECTIVELY ADSORBED BY AN ADSORBENT, WHICH COMPRISES DISTILLING SAID FEED STREAM IN A DISTILLATION ZONE TO REMOVE A PORTION OF SAID IMPURITY THEREFROM, RECOVERING ORGANIC MATERIAL CONTAINING A REDUCED AMOUNT OF IMPURITIES FROM SAID DISTILLATION ZONE, CONTACTING SAID RECOVERED ORGANIC MATERIAL WITH AN ADSORBENT TO REMOVE THE IMPURITY IN A FIRST ADSORPTION ZONE, RECOVERING FROM SAID FIRST ABSORPTION ZONE A SUBSTANTIALLY IMPURITY-FREE ORGANIC MATERIAL, HEATING A PORTION OF SAID IMPURITY-FREE ORGANIC MATERIAL TO A TEMPERATURE IN THE RANGE OF ABOUT 150 TO 800*F., PASSING IN A DIRECFTION OPPOSITE TO ADSORPTION SAID HEATED ORGANIC MATERIAL THROUGH A SECOND ADSORPTION ZONE CONTAINING SPEND ADSORBENT TO DESORB SID SPENT ADSORBENT, RECOVERING FROM SAID SECOND ADSORPTION ZONE A STREAM COMPRISING THE ORGANIC MATERIAL AND DESORBED IMPURITY, AND RECYCLING SAID RECOVERED STREAM TO SAID DISTILLATION ZONE.
Claim 2
Dependent Claim
176 words
A PROCESS FOR RECOVERING A STREAM OF SUBSTANTIALLY PURE ORGANIC MATERIAL FROM A FEED STREAM CONTAINING SAID ORGANIC MATERIAL IN ADMIXTURE WITH AN IMPURITY, SAID IMPURITY HAVING A BOILING POINT WHICH DIFFERS FROM THE BOILING POINT OF SAID ORGANIC MATERIAL AND BEING CAPABLE OF BEING SELECTIVELY ADSORBED BY AN ADSORBENT, WHICH COMPRISES DISTILLING SAID FEED STREAM IN A DISTILLATION ZONE TO REMOVE A PORTION OF SAID IMPURITY THEREFROM, RECOVERING ORGANIC MATERIAL CONTAINING A REDUCED AMOUNT OF IMPURITIES FROM SAID DISTILLATION ZONE, CONTACTING SAID RECOVERED ORGANIC MATERIAL WITH AN ADSORBENT TO REMOVE THE IMPURITY IN A FIRST ADSORPTION ZONE, RECOVERING FROM SAID FIRST ABSORPTION ZONE A SUBSTANTIALLY IMPURITY-FREE ORGANIC MATERIAL, HEATING A PORTION OF SAID IMPURITY-FREE ORGANIC MATERIAL TO A TEMPERATURE IN THE RANGE OF ABOUT 150 TO 800*F., PASSING IN A DIRECFTION OPPOSITE TO ADSORPTION SAID HEATED ORGANIC MATERIAL THROUGH A SECOND ADSORPTION ZONE CONTAINING SPEND ADSORBENT TO DESORB SID SPENT ADSORBENT, RECOVERING FROM SAID SECOND ADSORPTION ZONE A STREAM COMPRISING THE ORGANIC MATERIAL AND DESORBED IMPURITY, AND RECYCLING SAID RECOVERED STREAM TO SAID DISTILLATION ZONE.
Claim 3
Dependent Claim
153 words
A PROCESS FOR RECOVERING A SUBSTANTIALLY PURE LIGHT NAPHTHA STREAM FROM A FUELL RANGE NAPHTHA CONTAINING AN IMPURITY BOILING BELOW SAID LIGHT NAPHTHA WHICH COMPRISES DISTILLING SAID FULL RANGE NAPTHA IN A DISTILLATION ZONE TO REMOVE A PORTION OF SAID IMPURITY THEREFROM, RECOVERING A LIGHT NAPHTHA CONTAINING A REDUCED AMOUNT OF IMPURITIES FROM SAID DISTILLATION ZONE, CONTACTING SAID RECOVERED LIGHT NAPHTHA WITH AN ADSORBENT SELECTIVELY ADSORBENT TO SAID IMPURITY IN A FIRST ADSORPTION ZONE, RECOVERING FROM SAID FIRST ADSORPTION ZONE A SUBSTANTIALLY IMPURITY-FREE LIGHT NAPHTHA, HEATING A PORTION OF SAID IMPURITY-FREE LIGHT NAPHTHA TO A TEMPERATURE IN THE RANGE OF ABOUT 300 TO 700*F., PASSING IN A DIRECTION OPPOSITE TO ADSORPTION SAID HEATED LIGHT NAPHTHA THROUGH A SECOND ADSORPTION ZONE CONTAINING SPENT ADSORBENT TO DESORB SAID SPENT ADSORBENT AND RECOVERING FROM SAID SECOND ADSORPTION ZONE A STREAM COMPRISING THE LIGHT NAPHTHA AND DESORBED IMPURITY, AND RECYCLING SAID RECOVERED STREAM TO SAID DISTILLATION ZONE.
Claim 4
Dependent Claim
153 words
A PROCESS FOR RECOVERING A SUBSTANTIALLY PURE LIGHT NAPHTHA STREAM FROM A FUELL RANGE NAPHTHA CONTAINING AN IMPURITY BOILING BELOW SAID LIGHT NAPHTHA WHICH COMPRISES DISTILLING SAID FULL RANGE NAPTHA IN A DISTILLATION ZONE TO REMOVE A PORTION OF SAID IMPURITY THEREFROM, RECOVERING A LIGHT NAPHTHA CONTAINING A REDUCED AMOUNT OF IMPURITIES FROM SAID DISTILLATION ZONE, CONTACTING SAID RECOVERED LIGHT NAPHTHA WITH AN ADSORBENT SELECTIVELY ADSORBENT TO SAID IMPURITY IN A FIRST ADSORPTION ZONE, RECOVERING FROM SAID FIRST ADSORPTION ZONE A SUBSTANTIALLY IMPURITY-FREE LIGHT NAPHTHA, HEATING A PORTION OF SAID IMPURITY-FREE LIGHT NAPHTHA TO A TEMPERATURE IN THE RANGE OF ABOUT 300 TO 700*F., PASSING IN A DIRECTION OPPOSITE TO ADSORPTION SAID HEATED LIGHT NAPHTHA THROUGH A SECOND ADSORPTION ZONE CONTAINING SPENT ADSORBENT TO DESORB SAID SPENT ADSORBENT AND RECOVERING FROM SAID SECOND ADSORPTION ZONE A STREAM COMPRISING THE LIGHT NAPHTHA AND DESORBED IMPURITY, AND RECYCLING SAID RECOVERED STREAM TO SAID DISTILLATION ZONE.
Claim 5
Dependent Claim
127 words
A PROCESS FOR RECOVERING A STREAM OF SUBSTANTIALLY PURE ISOPROPANOL FROM A WATER-ISOPROPANOL MIXTURE WHICH COMPRISES DISTILLING SAID MIXTURE IN A DISTILLATION ZONE TO REMOVE A PORTION OF THE WATER THEREFROM, RECOVERING AN AZEOTROPIC WATER-ISOPROPANOL STREAM, CONTACTING SAID AZEOTROPIC MIXTURE WITH AN ADSORBENT SELECTIVELY ADSORBENT TO THE WATER IN A FIRST ADSORPTION ZONE, RECOVERING FROM SAID FIRST ADSORPTION ZONE A SUBSTANTIALLY WATER-FREE ISOPROPANOL, HEATING A PORTION OF SAID WATER-FREE ISOPROPANOL TO A TEMPERATURE IN THE RANGE OF ABOUT 150 TO 800*F., PASSING IN A DIRECTION OPPOSITE TO ADSORPTION SIAD HEATED ISOPROPANOL THROUGH A SECOND ADSORPTION ZONE CONTAINING SPENT ADSORBENT TO DESORB SAID SPENT ADSORBENT, RECOVERING FROM SAID SECOND ADSORPTION ZONE A STREAM COMPRISING SAID ISOPROPANOL AND DESORBED WATER, AND RECYCLING SAID RECOVERED STREAM TO SAID DISTILLATION ZONE.
Claim 6
Dependent Claim
127 words
A PROCESS FOR RECOVERING A STREAM OF SUBSTANTIALLY PURE ISOPROPANOL FROM A WATER-ISOPROPANOL MIXTURE WHICH COMPRISES DISTILLING SAID MIXTURE IN A DISTILLATION ZONE TO REMOVE A PORTION OF THE WATER THEREFROM, RECOVERING AN AZEOTROPIC WATER-ISOPROPANOL STREAM, CONTACTING SAID AZEOTROPIC MIXTURE WITH AN ADSORBENT SELECTIVELY ADSORBENT TO THE WATER IN A FIRST ADSORPTION ZONE, RECOVERING FROM SAID FIRST ADSORPTION ZONE A SUBSTANTIALLY WATER-FREE ISOPROPANOL, HEATING A PORTION OF SAID WATER-FREE ISOPROPANOL TO A TEMPERATURE IN THE RANGE OF ABOUT 150 TO 800*F., PASSING IN A DIRECTION OPPOSITE TO ADSORPTION SIAD HEATED ISOPROPANOL THROUGH A SECOND ADSORPTION ZONE CONTAINING SPENT ADSORBENT TO DESORB SAID SPENT ADSORBENT, RECOVERING FROM SAID SECOND ADSORPTION ZONE A STREAM COMPRISING SAID ISOPROPANOL AND DESORBED WATER, AND RECYCLING SAID RECOVERED STREAM TO SAID DISTILLATION ZONE.
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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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |