US3287432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective sorption process
Assignee: Texaco Inc
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Filing: 1962-06-08
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Granted: 1966-11-22
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Expires: 1982-06-08
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Sensel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:42
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; C07C7/13; C10; C10G; C10G25/00; C10G25/02; C10G25/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
PROCESS FOR THE SEPARATION OF A STRAIGHT CHAIN HYDROCARBON FROM A NON-STRAIGHT CHAIN HYDROCARBON IN ADMIXTURE THEREWITH WHICH COMPRISES CONTACTING SAID ADMIXTURE IN VAPOR PHASE WITH A DEHYDRATED CRYSTALLINE ZEOLITE OF TYPE A STRUCTURE HAVING 0.25 TO 0.95 OF ITS EXCHANGEABLE CATION CONTENT AS DIVALENT MANGANESE TO ABSORB SAID STRAIGHT CHAIN HYDROCARBON THEREFROM, DISCONTINUING SAID CONTACT WHEN ABOUT 80 TO ABOUT 95% OF THE SATURATION CAPACITY OF SAID CRYSTALLINE ZEOLITES FOR SAID STRAIGHT CHAIN HYDROCARBON IS REACHED, DESORBING SAID ABSORBED STRAIGHT CHAIN HYDROCARBON, DISCONTINUING SAID DESORBING WHEN ABOUT 80-90% OF THE ADSORBED STRAIGHT CHAIN HYDROCARBON HAS BEEN DESORBED AND REPEATING SAID CONTACTING AND DESORBING STEPS.
Claim 2
Dependent Claim
105 words
PROCESS FOR THE SEPARATION OF A STRAIGHT CHAIN HYDROCARBON FROM A NON-STRAIGHT CHAIN HYDROCARBON IN ADMIXTURE THEREWITH WHICH COMPRISES CONTACTING SAID ADMIXTURE IN VAPOR PHASE WITH A DEHYDRATED CRYSTALLINE ZEOLITE OF TYPE A STRUCTURE HAVING 0.25 TO 0.95 OF ITS EXCHANGEABLE CATION CONTENT AS DIVALENT MANGANESE TO ABSORB SAID STRAIGHT CHAIN HYDROCARBON THEREFROM, DISCONTINUING SAID CONTACT WHEN ABOUT 80 TO ABOUT 95% OF THE SATURATION CAPACITY OF SAID CRYSTALLINE ZEOLITES FOR SAID STRAIGHT CHAIN HYDROCARBON IS REACHED, DESORBING SAID ABSORBED STRAIGHT CHAIN HYDROCARBON, DISCONTINUING SAID DESORBING WHEN ABOUT 80-90% OF THE ADSORBED STRAIGHT CHAIN HYDROCARBON HAS BEEN DESORBED AND REPEATING SAID CONTACTING AND DESORBING STEPS.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |