US3019182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regeneration of a nitrogen base containing ion exchanger
Assignee: Shell USA Inc
•
Filing: 1958-08-15
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Granted: 1962-01-30
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Expires: 1978-08-15
Abstract
No abstract record available.
Inventors
- 👤 Chanmugam Jayarajan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:40
CPC Classifications
B; B01; B01J; B01J49/00; B01J49/05; B01J49/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A PROCESS FOR REFINING A LIQUID HYDROCARBON STREAM CONTAINING ORGANIC NITROGEN BASES COMPRISING THE STEPS OF CONTACTING THE HYDROCARBON STREAM WITH A SULFONATED RESIN CATION EXCHANGER SUNSTANTIALLY IN THE HYDROGEN FORM AND CHARACTERIZED BY ITS HIGH MOBILITY PROTONS WHEREBY NITROGEN BASES ARE RETAINED AS ORGANIC AMMONIUM IONS BY THE EXCHANGER, REMOVING THE RESULTING REFINED HYDROCARBON STREAM FROM THE EXCHANGER AND CONTACTING THE EXCHANGER BEARING ORGANIC AMMONIUM IONS WITH AN AQUEOUS SOLUTION CONTAINING 5-25% BY WEIGHT OF A PROTON DONATING MATERIAL OF THE GROUP CONSISTING OF STRONG MINERAL ACIDS, ALKALI METAL SALTS OF STRONG MINERAL ACIDS, INORGANIC AMMONIUM SALTS OF STRONG ACIDS AND MIXTURES THEREOF, SAID AQUEOUS SOLUTION ALSO CONTAINING 0.001-1% BY WEIGHT OF A SURFACE ACTIVE AGENT OF THE GROUP CONSISTING OF ALKALI METAL SALTS OF ALKYLATED AROMATIC SULFONIC ACIDS AND ALKALI METAL SALTS OF SULFATED OLEFING TO EFFECT REGENERATION OF SAID EXCHANGER TO THE HYDROGEN FORM.
Claim 2
Dependent Claim
147 words
A PROCESS FOR REFINING A LIQUID HYDROCARBON STREAM CONTAINING ORGANIC NITROGEN BASES COMPRISING THE STEPS OF CONTACTING THE HYDROCARBON STREAM WITH A SULFONATED RESIN CATION EXCHANGER SUNSTANTIALLY IN THE HYDROGEN FORM AND CHARACTERIZED BY ITS HIGH MOBILITY PROTONS WHEREBY NITROGEN BASES ARE RETAINED AS ORGANIC AMMONIUM IONS BY THE EXCHANGER, REMOVING THE RESULTING REFINED HYDROCARBON STREAM FROM THE EXCHANGER AND CONTACTING THE EXCHANGER BEARING ORGANIC AMMONIUM IONS WITH AN AQUEOUS SOLUTION CONTAINING 5-25% BY WEIGHT OF A PROTON DONATING MATERIAL OF THE GROUP CONSISTING OF STRONG MINERAL ACIDS, ALKALI METAL SALTS OF STRONG MINERAL ACIDS, INORGANIC AMMONIUM SALTS OF STRONG ACIDS AND MIXTURES THEREOF, SAID AQUEOUS SOLUTION ALSO CONTAINING 0.001-1% BY WEIGHT OF A SURFACE ACTIVE AGENT OF THE GROUP CONSISTING OF ALKALI METAL SALTS OF ALKYLATED AROMATIC SULFONIC ACIDS AND ALKALI METAL SALTS OF SULFATED OLEFING TO EFFECT REGENERATION OF SAID EXCHANGER TO THE HYDROGEN FORM.
References Cited (Backward Citations)
US2766178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |