US3304253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of phenolic materials
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1962-12-14
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Granted: 1967-02-14
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Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 William L Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:51
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/68; C07C37/86; C07C37/005; C07C37/009; C07C37/685; C07C37/70; C07C37/72; C10; C10G; C10G53/00; C10G53/16; C10G55/00; C10G55/02; C10G55/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A PROCESS COMPRISING THE STEPS OF CATALYSTICALLY CRACKING A PETROLEUM OIL CONTAINING PHENOLIC MATERIALS, DISTILLING THE PRODUCTS OF SAID CRACKING IN CONTACT WITH STEAM IN A FRACTIONATION ZONE TO SEPARATE AND RECOVER A LIGHT BOILING FRACTION, AN INTERMEDIATE BOILING FRACTION, AND A HEAVY FRACTION, COOLING AND CONDENSING SAID LIGHT FRACTION, SEPARATING SAID LIGHT FRACTION INTO AN OIL PHASE SATURATED WITH PHENOLIC MATERIALS; WITHDRAWING SAID AQUEOUS PHASE FROM SAID OIL PHASE AND CONTACTING SAID AQUEOUS PHASE WITH SAID INTERMEDIATE FRACTION TO SELECTIVELY EXTRACT PHENOLIC MATERIALS FROM SAID AQUEOUS PHASE, ALLOWING SAID AQEOUS PHASE AND SAID INTERMEDIATE FRACTION TO SEPARATE; WITHDRAWING AN AQUEOUS PHASE THEREFROM SUBSTANTIALLY FREE OF PHENOLIC MATERIALS AND WITHDRAWING AN OIL PHASE THEREFROM SUBSTANTIALLY INCREASED IN PHENOLIC MATERIALS.
Claim 2
Dependent Claim
119 words
A PROCESS COMPRISING THE STEPS OF CATALYSTICALLY CRACKING A PETROLEUM OIL CONTAINING PHENOLIC MATERIALS, DISTILLING THE PRODUCTS OF SAID CRACKING IN CONTACT WITH STEAM IN A FRACTIONATION ZONE TO SEPARATE AND RECOVER A LIGHT BOILING FRACTION, AN INTERMEDIATE BOILING FRACTION, AND A HEAVY FRACTION, COOLING AND CONDENSING SAID LIGHT FRACTION, SEPARATING SAID LIGHT FRACTION INTO AN OIL PHASE SATURATED WITH PHENOLIC MATERIALS; WITHDRAWING SAID AQUEOUS PHASE FROM SAID OIL PHASE AND CONTACTING SAID AQUEOUS PHASE WITH SAID INTERMEDIATE FRACTION TO SELECTIVELY EXTRACT PHENOLIC MATERIALS FROM SAID AQUEOUS PHASE, ALLOWING SAID AQEOUS PHASE AND SAID INTERMEDIATE FRACTION TO SEPARATE; WITHDRAWING AN AQUEOUS PHASE THEREFROM SUBSTANTIALLY FREE OF PHENOLIC MATERIALS AND WITHDRAWING AN OIL PHASE THEREFROM SUBSTANTIALLY INCREASED IN PHENOLIC MATERIALS.
References Cited (Backward Citations)
US2134390A
Cited
US2785120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |