Patent US3019199A successfully refreshed from Google Patents.
US3019199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regeneration of a nitrogen base containing ion exchanger
Assignee: Shell USA Inc
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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
2026-11-04 05:32
CPC Classifications
B; B01; B01J; B01J49/00; B01J49/05; B01J49/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A PROCESS FOR REFINING A LIQUID HYDROCARBON STREAM CONTAINING ORGANIC NITROGEN BASE COMPRISING THE STEPS OF CONTACTING THE HYDROCARBON STREAM WITH A SOLID ORGANIC SULFONATED RESIN CATION EXCHANGER SUBSTANTIALLY IN HYDROGEN FORM AND CHARACTERIZED BY ITS HIGH MOBILITY PROTONS IN SUCH MANNER THAT SAID NITROGEN BASES ARE RETAINED AS ORGANIC AMMONIUM IONS BY THE CATION EXCHANGER, REMOVING THE RESULTING REFINED LIQUID HYDROCARBON STREAM FROM THE CATION EXCHANGER, CONTACTING THE EXCHANGER AT LEAST ABOUT 60% SATURATED WITH NITROGEN BASES RELATIVE TO ITS ION EXCHANGE SITES TO REGENERATE THE EXCHANGER WITH AN AQUEOUS SOLUTION CONTAINING 5-25% OF A SALT OF A MINERAL ACID HAVING POSITIVE IONS SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND INORGANIC AMMONIUM RADICALS TO DISPLACE AT LEAST A PORTION OF THE ORGANIC AMMONIUM IONS WITH SAID POSITIVE IONS AND DURING THE COURSE OF THE REGENERATION IN TURN REPLACING AT LEAST A PORTION OF THE POSITIVE DISPLACING IONS WITH HYDROGEN IONS APPLIED BY AN AQUEOUS SOLUTION CONTAINING 5-25% OF A MINERAL ACID TO EFFECT REGENERATION OF SAID EXCHANGER TO THE HYDROGEN FORM.
Claim 2
Dependent Claim
174 words
A PROCESS FOR REFINING A LIQUID HYDROCARBON STREAM CONTAINING ORGANIC NITROGEN BASE COMPRISING THE STEPS OF CONTACTING THE HYDROCARBON STREAM WITH A SOLID ORGANIC SULFONATED RESIN CATION EXCHANGER SUBSTANTIALLY IN HYDROGEN FORM AND CHARACTERIZED BY ITS HIGH MOBILITY PROTONS IN SUCH MANNER THAT SAID NITROGEN BASES ARE RETAINED AS ORGANIC AMMONIUM IONS BY THE CATION EXCHANGER, REMOVING THE RESULTING REFINED LIQUID HYDROCARBON STREAM FROM THE CATION EXCHANGER, CONTACTING THE EXCHANGER AT LEAST ABOUT 60% SATURATED WITH NITROGEN BASES RELATIVE TO ITS ION EXCHANGE SITES TO REGENERATE THE EXCHANGER WITH AN AQUEOUS SOLUTION CONTAINING 5-25% OF A SALT OF A MINERAL ACID HAVING POSITIVE IONS SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND INORGANIC AMMONIUM RADICALS TO DISPLACE AT LEAST A PORTION OF THE ORGANIC AMMONIUM IONS WITH SAID POSITIVE IONS AND DURING THE COURSE OF THE REGENERATION IN TURN REPLACING AT LEAST A PORTION OF THE POSITIVE DISPLACING IONS WITH HYDROGEN IONS APPLIED BY AN AQUEOUS SOLUTION CONTAINING 5-25% OF A MINERAL ACID 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 |