Patent US3070542A successfully refreshed from Google Patents.
US3070542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon separation process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1960-06-24
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Granted: 1962-12-25
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Expires: 1980-06-24
Abstract
No abstract record available.
Inventors
- 👤 William J Asher
- 👤 William R Epperly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:32
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/02; C07; C07C; C07C7/00; C07C7/12; C07C7/13; C10G25/00; C10G25/02; C10G25/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN IMPROVED PROCESS FOR THE SEPARATION OF STRAIGHT CHAIN HYDROCARBONS CONTAINING MORE THAN 10 CARBON ATOMS PER MOLECULE FROM A FEED CONTAINING SAID STRAIGHT CHAIN HYDROCARBONS IN ADMIXTURE WITH NONSTRAIGHT CHAIN HYDROCARBONS WHICH COMPRISES: PASSING SAID MIXTURE AND A DISPLACING MEDIUM COMPRISING A SMALL POLAR MOLECULE INTO A MOLECULAR SIEVE RELATIVELY SATURATED WITH SAID DISPLACING MEDIUM; ADSORBING SAID STRAIGHT CHAIN HYDROCARBONS ON SAID MOLECULAR SIEVE, THEREBY PARTIALLY DESORBING SAID DISPLACING MEDIUM; WITHDRAWING A STREAM CONTAINING THE UNADSORBED PORTION OF SAID MIXTURE AND SAID DESORBED DISPLACING MEDIUM; DESORBING SAID STRAIGHT CHAIN HYDROCARBONS BY INTRODUCING SAID DISPLACING MEDIUM INTO SAID MOLECULAR SIEVE, THEREBY RESATURATING SAID ADSORBENT.
Claim 2
Dependent Claim
104 words
AN IMPROVED PROCESS FOR THE SEPARATION OF STRAIGHT CHAIN HYDROCARBONS CONTAINING MORE THAN 10 CARBON ATOMS PER MOLECULE FROM A FEED CONTAINING SAID STRAIGHT CHAIN HYDROCARBONS IN ADMIXTURE WITH NONSTRAIGHT CHAIN HYDROCARBONS WHICH COMPRISES: PASSING SAID MIXTURE AND A DISPLACING MEDIUM COMPRISING A SMALL POLAR MOLECULE INTO A MOLECULAR SIEVE RELATIVELY SATURATED WITH SAID DISPLACING MEDIUM; ADSORBING SAID STRAIGHT CHAIN HYDROCARBONS ON SAID MOLECULAR SIEVE, THEREBY PARTIALLY DESORBING SAID DISPLACING MEDIUM; WITHDRAWING A STREAM CONTAINING THE UNADSORBED PORTION OF SAID MIXTURE AND SAID DESORBED DISPLACING MEDIUM; DESORBING SAID STRAIGHT CHAIN HYDROCARBONS BY INTRODUCING SAID DISPLACING MEDIUM INTO SAID MOLECULAR SIEVE, THEREBY RESATURATING SAID ADSORBENT.
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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |