Patent US2727670A successfully refreshed from Google Patents.
US2984620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isothermal adsorption process for separation of organic nitrogen compounds from hydrocarbons
Assignee: Union Oil Company of California
•
Filing: 1957-08-01
•
Granted: 1961-05-16
•
Expires: 1977-08-01
Abstract
No abstract record available.
Inventors
- 👤 Raymond N Fleck
- 👤 Carlyle G Wight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:42
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/02; C10G25/03; C10G25/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
THE PROCESS FOR THE DENITROGENATION OF A HYDROCARBON MIXTURE CONTAMINATED WITH ORGANIC NITROGEN COMPOUNDS, INCLUDING HETEROCYCLIC NITROGEN BASES, HAVING BOILING POINTS WITHIN THE BOILING RANGE OF THE HYDROCARBON COMPONENTS OF SAID MIXTURE, IN MINOR AMOUNTS BUT NOT IN SUCH QUANTITIES THAT SAID MIXTURE ANALYZES MORE THAN ABOUT 2.5 PERCENT BY WEIGHT OF NITROGEN, WHICH PROCESS COMPRISES: (1) CONTACTING SAID MIXTURE WITH A LEAN SOLID PARTIALLY DEHYDRATED ZEOLITIC METALLO ALUMINO SILICATE ADSORBENT HAVING SUBSTANTIALLY UNIFORM PORES OF BETWEEN ABOUT 7 A. AND ABOUT 13 A. IN DIAMETER, WHEREBY THERE IS OBTAINED A NON-ADSORBED HYDROCARBON PHASE AND A RICH ADSORBENT CONTAINING SAID ORGANIC NITROGEN COMPOUNDS, (2) SEPARATING SAID NON-ADSORBED PHASE FROM
Claim 2
Dependent Claim
109 words
THE PROCESS FOR THE DENITROGENATION OF A HYDROCARBON MIXTURE CONTAMINATED WITH ORGANIC NITROGEN COMPOUNDS, INCLUDING HETEROCYCLIC NITROGEN BASES, HAVING BOILING POINTS WITHIN THE BOILING RANGE OF THE HYDROCARBON COMPONENTS OF SAID MIXTURE, IN MINOR AMOUNTS BUT NOT IN SUCH QUANTITIES THAT SAID MIXTURE ANALYZES MORE THAN ABOUT 2.5 PERCENT BY WEIGHT OF NITROGEN, WHICH PROCESS COMPRISES: (1) CONTACTING SAID MIXTURE WITH A LEAN SOLID PARTIALLY DEHYDRATED ZEOLITIC METALLO ALUMINO SILICATE ADSORBENT HAVING SUBSTANTIALLY UNIFORM PORES OF BETWEEN ABOUT 7 A. AND ABOUT 13 A. IN DIAMETER, WHEREBY THERE IS OBTAINED A NON-ADSORBED HYDROCARBON PHASE AND A RICH ADSORBENT CONTAINING SAID ORGANIC NITROGEN COMPOUNDS, (2) SEPARATING SAID NON-ADSORBED PHASE FROM
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) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |