US2901519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molecular sieve separation process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-04-29
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Granted: 1959-08-25
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Expires: 1977-04-29
Abstract
No abstract record available.
Inventors
- 👤 Albert C Patterson
- 👤 Homer Z Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:23
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/02; C10G25/03
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
64 words
A PROCESS FOR SEPARATING STRAIGHT CHAIN HYDROCARBOPNS FROM NON-STRIGHT CHAIN HYDROCARBONS WHICH COMPRISES CONTACTING A PARTIALLY VAPORIZED MIXTURE OF STRAIGHT CHAIN AND NON-STRAIGHT CHAIN HYDROCARBONS WITH A MOLECULAR SIEVE ADSORBENT SELECTIVE FOR STRAIGHT CHAIN HYDROCARBONS, DISCONTINUING SAID CONTACTING SAID ADSORBENT WITH AN ADCOMES SATURATED, CONTRACTING SAID ADSORBENT WITH AN ADDITIONAL QUANTITY OF SAID MIXTURE IN VAPOR PHASE, AND THEREAFTER DESORBING ADSORBED STRAIGHT CHAIN HYDROCARBONS
Claim 2
Dependent Claim
64 words
A PROCESS FOR SEPARATING STRAIGHT CHAIN HYDROCARBOPNS FROM NON-STRIGHT CHAIN HYDROCARBONS WHICH COMPRISES CONTACTING A PARTIALLY VAPORIZED MIXTURE OF STRAIGHT CHAIN AND NON-STRAIGHT CHAIN HYDROCARBONS WITH A MOLECULAR SIEVE ADSORBENT SELECTIVE FOR STRAIGHT CHAIN HYDROCARBONS, DISCONTINUING SAID CONTACTING SAID ADSORBENT WITH AN ADCOMES SATURATED, CONTRACTING SAID ADSORBENT WITH AN ADDITIONAL QUANTITY OF SAID MIXTURE IN VAPOR PHASE, AND THEREAFTER DESORBING ADSORBED STRAIGHT CHAIN HYDROCARBONS
Claim 3
Dependent Claim
43 words
IN A PROCESS WHEREIN HYDROCARBONS ARE SELECTIVELY ADSORBED FROM A HYDROCARBON MIXTURE ONTO A MOLECULAR SIEVE ADSORBENT AND ARE SUBSEQUENTLY DESORBED, THE IMPROVEMENT WHICH COMPRISES COMMENCING ADSORPTION WITH SAID MIXTURE IN MIXED LIQUID-VAPOR PHASE AND COMPLETING ADSORPTION WITH SAID MIXTURE IN VAPOR PHASE.
Claim 4
Dependent Claim
43 words
IN A PROCESS WHEREIN HYDROCARBONS ARE SELECTIVELY ADSORBED FROM A HYDROCARBON MIXTURE ONTO A MOLECULAR SIEVE ADSORBENT AND ARE SUBSEQUENTLY DESORBED, THE IMPROVEMENT WHICH COMPRISES COMMENCING ADSORPTION WITH SAID MIXTURE IN MIXED LIQUID-VAPOR PHASE AND COMPLETING ADSORPTION WITH SAID MIXTURE IN VAPOR PHASE.
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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |