US2999861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segregation of organic nitrogen compounds
Assignee: Union Oil Company of California
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Filing: 1958-11-12
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Granted: 1961-09-12
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Expires: 1978-11-12
Abstract
No abstract record available.
Inventors
- 👤 Raymond N Fleck
- 👤 Carlyle G Wight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:24
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/02; C10G25/03; C10G25/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS FOR TREATING A MIXTURE DERIVED FROM A NITROGENOUS MINERAL OIL SOURCE ESSENTIALLY COMPRISING BASIC AND NON-BASIC ORGANIC NITROGEN COMPOUNDS, WHICH COMPRISES: (1) CONTACTING SAID MIXTURE WITH A LEAN GRANULAR ADSORBENT COMPRISING A PARTIALLY DEHYDRATED TYPE X ZEOLITIC METALLO ALUMINO SILICATE HAVING PORES OF SUBSTANTIALLY UNIFORM DIAMETER BETWEEN ABOUT 7 A. AND ABOUT 13 A., WHEREBY THERE IS OBTAINED A RICH ADSORBENT CONTAINING ADSORBED NON-BASIC ORGANIC NITROGEN COMPONENTS OF SAID MIXTURE AND A RAFFINATE PRODUCT WHICH IS RICH IN THE BASIC ORGANIC NITROGEN COMPONENTS OF SAID MIXTURE, (2) SEPARATING SAID RAFFINATE PRODUCT FROM SAID RICH ADSORBENT, AND (3) TREATING SAID RICH ADSORBENT TO RECOVER THE ADSORBED NON-BASIC ORGANIC NITROGEN COMPONENTS THEREFROM.
Claim 2
Dependent Claim
112 words
A PROCESS FOR TREATING A MIXTURE DERIVED FROM A NITROGENOUS MINERAL OIL SOURCE ESSENTIALLY COMPRISING BASIC AND NON-BASIC ORGANIC NITROGEN COMPOUNDS, WHICH COMPRISES: (1) CONTACTING SAID MIXTURE WITH A LEAN GRANULAR ADSORBENT COMPRISING A PARTIALLY DEHYDRATED TYPE X ZEOLITIC METALLO ALUMINO SILICATE HAVING PORES OF SUBSTANTIALLY UNIFORM DIAMETER BETWEEN ABOUT 7 A. AND ABOUT 13 A., WHEREBY THERE IS OBTAINED A RICH ADSORBENT CONTAINING ADSORBED NON-BASIC ORGANIC NITROGEN COMPONENTS OF SAID MIXTURE AND A RAFFINATE PRODUCT WHICH IS RICH IN THE BASIC ORGANIC NITROGEN COMPONENTS OF SAID MIXTURE, (2) SEPARATING SAID RAFFINATE PRODUCT FROM SAID RICH ADSORBENT, AND (3) TREATING SAID RICH ADSORBENT TO RECOVER THE ADSORBED NON-BASIC ORGANIC NITROGEN COMPONENTS THEREFROM.
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) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |