US3899398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating citrus wastes to obtain water insoluble essential oils
Assignee: Texaco Inc
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Filing: 1972-11-24
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Granted: 1975-08-12
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Expires: 1992-11-24
Abstract
Abstract Citrus fruit peels and pulp are treated by coking in the aqueous phase in the absence of air or oxygen followed by heating of the resulting coke to give water insoluble essential oils such as orange oils. A carrier gas such as nitrogen preferably is used to entrain the hydrocarbons evolved by heating the coke.
Inventors
- 👤 Edward L Cole
- 👤 Howard V Hess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:55
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/10; C10B; C10B53/00; C10B53/02; Y; Y02; Y02E; Y02E50/00; Y02E50/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
88 words
PROCESS FOR TREATING CITRUS WASTES TO OBTAIN ESSENTIAL OILS COMPRISING COKING SAID CITRUS WASTES IN THE AQUEOUS PHASE UNDER AUTOGENEOUS PRESSURE AT A TEMPERATURE OF ABOUT 350* TO 750*F. IN THE ABSENCE OF AIR OF OXYGEN FOR A COKING TIME RANGEING FROM ABOUT 0.1 MINUTE TO ABOUT 2 HOURS UNDER TURBULENT FLOW CONDITIONS CHARACTERIZED BY A REYNOLDS NUMBER IN EXCESS OF 2000, TO FORM COKE MIXED WITH ESSENTIAL OILS SEPARATING THE COKE SO FORMED FROM THE AQUEOUS PHASE AND HEATING SAID COKE TO DISTILL OF SAID ESSENTIAL OILS.
Claim 2
Dependent Claim
88 words
PROCESS FOR TREATING CITRUS WASTES TO OBTAIN ESSENTIAL OILS COMPRISING COKING SAID CITRUS WASTES IN THE AQUEOUS PHASE UNDER AUTOGENEOUS PRESSURE AT A TEMPERATURE OF ABOUT 350* TO 750*F. IN THE ABSENCE OF AIR OF OXYGEN FOR A COKING TIME RANGEING FROM ABOUT 0.1 MINUTE TO ABOUT 2 HOURS UNDER TURBULENT FLOW CONDITIONS CHARACTERIZED BY A REYNOLDS NUMBER IN EXCESS OF 2000, TO FORM COKE MIXED WITH ESSENTIAL OILS SEPARATING THE COKE SO FORMED FROM THE AQUEOUS PHASE AND HEATING SAID COKE TO DISTILL OF SAID ESSENTIAL OILS.
Claim 3
Dependent Claim
23 words
Process according to claim 1 wherein an inert carrier gas is used during said heating of said coke to entrain said oils therewith.
Claim 4
Dependent Claim
10 words
Process according to claim 2 wherein said gas is nitrogen.
Claim 5
Dependent Claim
18 words
Process according to claim 1 wherein said coke is heated to about 400*F. to distill off said hydrocarbons.
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) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |