US2636055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dicyclopentadiene recovery process
Assignee: Standard Oil Development Co
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Filing: 1950-10-18
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Granted: 1953-04-21
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Expires: 1970-10-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:57
CPC Classifications
C; C07; C07C; C07C13/00; C07C13/28; C07C13/32; C07C13/54; C07C13/605; C07C13/61; C07C7/00; C07C7/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
IN A PROCESS FOR SEGREGATING CYCLOPENTADIENE FROM A STREAM OF CRACKED HYDROCARBONS, THE STEPS WHICH COMPRISES QUENCHING A VAPOR STREAM OF THE CRACKED HYDROCARBONS UNDER REDUCED PRESSURE TO LOWER THEIR TEMPERATURE, WITHDRAWING FROM THE QUENCHED HYDROCARBONS A REMAINING VAPOR STREAM OF C1 TO C10+ HYDROCARBONS INCLUDING CYCLOPENTADIENE AS MONOMER, COOLING THE WITHDRAWN VAPOR STREAM SUFFICIENTLY TO CONDENSE C10+ COMPONENTS THEREIN TO LIQUIDS, COMPRESSING AND COOLING THE REMAINING VAPOR STREAM CONTAINING C1 TO C10 HYDROCARBONS TO LIQUEFY ITS C6+ COMPONENTS, SEPARATING THE REMAINING VAPOR STREAM OF C1 TO C5 COMPONENTS FROM THE LIQUEGIED C6 TO C10 COMPONENTS, FURTHER COMPRESSING AND COOLING THE REMAINING VAPOR STREAM CONTAINING C1 TO C5 COMPONETS AND WHICH HAS BEEN FREED OF C6 TO C10 COMPONENTS TO LIQUEFY THE COMPONENTS IN THE C2 TO C5 RANGE, PROGRESSIVELY REDUCING PRESSURE ON THE THUS FURTHER COMPRESSED STREAM CONTAINING LIQUEFIED C2 TO C5 COMPONENTS TO FRACTIONALLY DISTLL C1 THROUGH C4 COMPONENTS THEREFROM AND OBTAIN A RESIDUAL LIQUID FRACTION CONTAINING THE LIQUEFIED C5 COMPONENTS.
Claim 2
Dependent Claim
163 words
IN A PROCESS FOR SEGREGATING CYCLOPENTADIENE FROM A STREAM OF CRACKED HYDROCARBONS, THE STEPS WHICH COMPRISES QUENCHING A VAPOR STREAM OF THE CRACKED HYDROCARBONS UNDER REDUCED PRESSURE TO LOWER THEIR TEMPERATURE, WITHDRAWING FROM THE QUENCHED HYDROCARBONS A REMAINING VAPOR STREAM OF C1 TO C10+ HYDROCARBONS INCLUDING CYCLOPENTADIENE AS MONOMER, COOLING THE WITHDRAWN VAPOR STREAM SUFFICIENTLY TO CONDENSE C10+ COMPONENTS THEREIN TO LIQUIDS, COMPRESSING AND COOLING THE REMAINING VAPOR STREAM CONTAINING C1 TO C10 HYDROCARBONS TO LIQUEFY ITS C6+ COMPONENTS, SEPARATING THE REMAINING VAPOR STREAM OF C1 TO C5 COMPONENTS FROM THE LIQUEGIED C6 TO C10 COMPONENTS, FURTHER COMPRESSING AND COOLING THE REMAINING VAPOR STREAM CONTAINING C1 TO C5 COMPONETS AND WHICH HAS BEEN FREED OF C6 TO C10 COMPONENTS TO LIQUEFY THE COMPONENTS IN THE C2 TO C5 RANGE, PROGRESSIVELY REDUCING PRESSURE ON THE THUS FURTHER COMPRESSED STREAM CONTAINING LIQUEFIED C2 TO C5 COMPONENTS TO FRACTIONALLY DISTLL C1 THROUGH C4 COMPONENTS THEREFROM AND OBTAIN A RESIDUAL LIQUID FRACTION CONTAINING THE LIQUEFIED C5 COMPONENTS.
References Cited (Backward Citations)
US2387993A
Cited
US2439307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |