Patent US2835343A successfully refreshed from Google Patents.
US2835343A
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Gas adsorption with an alkali metalactivated adsorbent
Assignee: Standard Oil Co
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Filing: 1956-09-20
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Granted: 1958-05-20
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Expires: 1976-09-20
Abstract
No abstract record available.
Inventors
- 👤 William F Wolff
- 👤 Hill Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:10
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; A; A62; A62B; A62B21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN THE ADSORPTION PROCESS WHEREIN A GAS SELECTED FROM THE GROUP CONSISTING OF NITROGEN, THE GASES OF GROUP ZERO OF THE PERIODIC TABLE, NORMALLY GASEOUS HYDROCARBONS, AND MIXTURES OF SAID GASES ARE CONTACTED WITH AN ACTIVATED CARBON ABSORBENT UNDER ADSORPTION CONDITIONS, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID GAS WITH AN ALKALI METAL-ACTIVATED CARBON ADSORBENT CONTAINING THE TWEEN ABOUT 0.05 TO 0.2 PARTS BY WEIGHT OF AN ALKALI METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, PO/ TASSIUM, AND MIXTURES THEROF PER PART BY WEIGHT OF THE ACTIVATED CARBON AND WHICH ADSORBENT IS PREPARED BY MIXING SAID ALKALI METAL IN MOLTEN FORM WITH THE ACTIVATED CARBON UNDER AN INERT ATMOSPHERE TO OBTAIN A WELL DISPERSED ALKALI METAL UPON AND WITHIN THE ACTIVATED CARBON, THE CONTACTING OF SAID ALKALI METAL-ACTIVATED CARBON ADSORBENT WITH NORMALLY GASEOUS HYDROCARBONS BEING CARRIED OUT AT A TEMPERATURE LOWER THAN ROOM TEMPERATURE.
Claim 2
Dependent Claim
144 words
IN THE ADSORPTION PROCESS WHEREIN A GAS SELECTED FROM THE GROUP CONSISTING OF NITROGEN, THE GASES OF GROUP ZERO OF THE PERIODIC TABLE, NORMALLY GASEOUS HYDROCARBONS, AND MIXTURES OF SAID GASES ARE CONTACTED WITH AN ACTIVATED CARBON ABSORBENT UNDER ADSORPTION CONDITIONS, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID GAS WITH AN ALKALI METAL-ACTIVATED CARBON ADSORBENT CONTAINING THE TWEEN ABOUT 0.05 TO 0.2 PARTS BY WEIGHT OF AN ALKALI METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, PO/ TASSIUM, AND MIXTURES THEROF PER PART BY WEIGHT OF THE ACTIVATED CARBON AND WHICH ADSORBENT IS PREPARED BY MIXING SAID ALKALI METAL IN MOLTEN FORM WITH THE ACTIVATED CARBON UNDER AN INERT ATMOSPHERE TO OBTAIN A WELL DISPERSED ALKALI METAL UPON AND WITHIN THE ACTIVATED CARBON, THE CONTACTING OF SAID ALKALI METAL-ACTIVATED CARBON ADSORBENT WITH NORMALLY GASEOUS HYDROCARBONS BEING CARRIED OUT AT A TEMPERATURE LOWER THAN ROOM TEMPERATURE.
References Cited (Backward Citations)
US1731473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |