US2886522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adsorption process
Assignee: Texaco Inc
•
Filing: 1955-07-11
•
Granted: 1959-05-12
•
Expires: 1975-07-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas A Cooper
- 👤 Robert A Woodle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:30
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; C07C7/13; B; B01; B01D; B01D15/00; B01D15/02; C10; C10G; C10G25/00; C10G25/02; C10G25/03; C10G25/06; B01D15/08; B01D15/10; B01D15/18; B01D15/1892
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
165 words
A METHOD OF FRACTIONATING A LIQUID HYDROCARBON MIXTURE CONTAINING STRAIGHT CHAIN HYDROCARBONS AND NONSTRAIGHT CHAIN HYDROCARBONS WHICH COMPRISES CONTACTING SAID LIQUID MIXTURE WITH A SLURRY COMPRISING A HIGH BOILING, INERT CARRIER LIQUID, SAID CARRIER LIQUID BEING SUBSTANTIALLY UNADSORBED BY SAID ADSORBENT AND HAVING A BOILING POINT SUBSTANTIALLY GREATER THAN SAID LIQUID MIXTURE UNDERGOING FRACTIONATION AND BEING IMMISCIBLE WITH SAID LIQUID MIXTURE, AND A SOLID, ALUMINO-SILICATE MOLECULAR SIEVE PARTICLE-FORM SELECTIVE ADSORBENT WHICH SELECTIVELY ADSORBS STRAIGHT CHAIN HYDROCARBONS TO THE SUBSTANTIAL EXCLUSION OF NON-STRAIGHT CHAIN HYDROCARBONS, TO ADSORB STRAIGHT CHAIN HYDROCARBONS FROM SAID LIQUID MIXTURE, PERMITTING THE RESULTING ADMIXTURE TO SEPARATE INTO TWO LIQUID PHASES, A TREATED LIQUID HYDROCARBON PHASE CONTAINING THE UNADSORBED NON-STRAIGHT CHAIN HYDROCARBONS AND A CARRIER LIQUID PHASE CONTAINING SAID ADSORBENT TOGETHER WITH STRAIGHT CHAIN HYDROCARBONS ADSORBED THEREIN, SEPARATING SAID TREATED LIQUID PHASE, SUBJECTING SAID CARRIER LIQUID PHASE TO A RELATIVELY ELEVATED TEMPERATURE SUFFICIENT TO EFFECT DESORPTION OF THE ADSORBED STRAIGHT CHAIN HYDROCARBON FROM SAID ADSORBENT AND RECOVERING THE RESULTING DESORBED STRAIGHT CHAIN HYDROCARBONS.
References Cited (Backward Citations)
US2287119A
Cited
US2326295A
Cited
US2306610A
Cited
US2420761A
Cited
US2407820A
Cited
US2522426A
Cited
US2564717A
Cited
US2614133A
Cited
US2768942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |