Patent US3055825A successfully refreshed from Google Patents.
US3055825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the treatment of hydrocarbon oils
Assignee: Shell USA Inc
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Filing: 1958-12-29
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Granted: 1962-09-25
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Expires: 1978-12-29
Abstract
No abstract record available.
Inventors
- 👤 Weigert C Buningh
- 👤 Have Cornelis D Ten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:11
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A PROCESS FOR THE REMOVAL OF DISSOLVED ORGANIC NITROGEN COMPOUNDS FROM LIQUID HYDROCARBONS BY CONTACTING THE LIQUID HYDROCARBON WITH THE ENTIRE BODY OF A SOLID ADSORBENT HAVING ADSORPTIVE SUSRFACES PRE-WET WITH A POLAR ORGANIC LIQUID HAVING AN ADSORPTIVE AFFINITY FOR THE SOLID ADSORBER APPROXIMATELY EQUAL TO THE ADSORPTIVE AFFINITY FOR THE ADSORBENT OF THE DISSOLVED ORGANIC NITROGEN COMPOUND TO BE REMOVED AND IN WHICH SAID POLAR ORGANIC LIQUID IS AN ORGANIC COMPOUND CONTAINING OXYGEN, SELECTED FROM THE GROUP CONSISTING OF DIALKYL KETONES, ALKYL ESTERS, DIALKYL ETHERS, CYCLIC ETHERS, ALKANOLS, ALKANEDIOLS, AND ALKANEDOIL NONOETHERS, SEPARATING THE HYDROCARBONS FROM THE ADSORBENT AND ADSORBATE COMPRISING AT LEAST A PORTION OF THE NITROGEN COMPOUNDS, DESORBING THE ADSORBATE NITROGEN COMPOUNDS FROM THE ADSORBENT, AND REGENERATING AND PRE-WETTING THE ADSORBENT FOR FURTHER USE WITH AT LEAST ONE MILLILITER OF SAID POLAR ORGANIC LIQUID PER GRAM OF ADSORBENT.
Claim 2
Dependent Claim
141 words
A PROCESS FOR THE REMOVAL OF DISSOLVED ORGANIC NITROGEN COMPOUNDS FROM LIQUID HYDROCARBONS BY CONTACTING THE LIQUID HYDROCARBON WITH THE ENTIRE BODY OF A SOLID ADSORBENT HAVING ADSORPTIVE SUSRFACES PRE-WET WITH A POLAR ORGANIC LIQUID HAVING AN ADSORPTIVE AFFINITY FOR THE SOLID ADSORBER APPROXIMATELY EQUAL TO THE ADSORPTIVE AFFINITY FOR THE ADSORBENT OF THE DISSOLVED ORGANIC NITROGEN COMPOUND TO BE REMOVED AND IN WHICH SAID POLAR ORGANIC LIQUID IS AN ORGANIC COMPOUND CONTAINING OXYGEN, SELECTED FROM THE GROUP CONSISTING OF DIALKYL KETONES, ALKYL ESTERS, DIALKYL ETHERS, CYCLIC ETHERS, ALKANOLS, ALKANEDIOLS, AND ALKANEDOIL NONOETHERS, SEPARATING THE HYDROCARBONS FROM THE ADSORBENT AND ADSORBATE COMPRISING AT LEAST A PORTION OF THE NITROGEN COMPOUNDS, DESORBING THE ADSORBATE NITROGEN COMPOUNDS FROM THE ADSORBENT, AND REGENERATING AND PRE-WETTING THE ADSORBENT FOR FURTHER USE WITH AT LEAST ONE MILLILITER OF SAID POLAR ORGANIC LIQUID PER GRAM OF ADSORBENT.
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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |