US3282831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regeneration of anionic exchange resins
Assignee: Signal Oil and Gas Co
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Filing: 1963-12-12
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Granted: 1966-11-01
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Expires: 1983-12-12
Abstract
No abstract record available.
Inventors
- 👤 George E Hamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:47
CPC Classifications
B; B01; B01J; B01J49/00; B01J49/05; B01J49/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A METHOD OR REGENERATING ANIONIC EXCHANGE RESIN CONTAINING ABSORBED CARBONYL SULFIDE, WHICH METHOD COMPRISES ENGENERATING ANIONIC EXCHANGE RESIN CONTAINING CARBONYL SULFIDE BY CONTACTING SAID RESIN WITH A SOLUTION CONTAINING REGENERATING AGENT EFFECTIVE TO REMOVE CARBONYL SULFIDE INTACT FROM SAID RESIN, SAID REGENERATING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF MONOETHANOLAMINE, PROPANOL AMINE, HYDROCHLORIC ACID, SULFURIC ACID AND ACETIC ACID, SAID REGENERATING AGENT BEING PRESENT IN AN AMOUNT SUFFICIENT TO REMOVE SUFFICIENT UNHYDROLYZED CARBONYL SULFIDE FROM SAID RESIN TO RESTORE THE ACTIVITY OF SAID RESIN TO AT LEAST ABOUT INITIAL RESIN ACTIVITY AND SUPPRESS THE HYDROLYTIC ACTIVITY OF SAID RESIN, THEREAFTER WASHING THE REGENERATED RESIN FREE OF SAID REGENERATED RESIN IS COVER CONTACTING THE RESULTING REGENERATED RESIN WITH AQUEOUS BASE, WHEREBY SAID REGENERATED RESIN IS CONVERTED TO THE HYDROXYL CYCLE AND IS READY FOR USE IN THE REMOVAL OF CARBONYL SULFIDE FROM A HYDROCARBON STREAM.
Claim 2
Independent Claim
145 words
A METHOD OR REGENERATING ANIONIC EXCHANGE RESIN CONTAINING ABSORBED CARBONYL SULFIDE, WHICH METHOD COMPRISES ENGENERATING ANIONIC EXCHANGE RESIN CONTAINING CARBONYL SULFIDE BY CONTACTING SAID RESIN WITH A SOLUTION CONTAINING REGENERATING AGENT EFFECTIVE TO REMOVE CARBONYL SULFIDE INTACT FROM SAID RESIN, SAID REGENERATING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF MONOETHANOLAMINE, PROPANOL AMINE, HYDROCHLORIC ACID, SULFURIC ACID AND ACETIC ACID, SAID REGENERATING AGENT BEING PRESENT IN AN AMOUNT SUFFICIENT TO REMOVE SUFFICIENT UNHYDROLYZED CARBONYL SULFIDE FROM SAID RESIN TO RESTORE THE ACTIVITY OF SAID RESIN TO AT LEAST ABOUT INITIAL RESIN ACTIVITY AND SUPPRESS THE HYDROLYTIC ACTIVITY OF SAID RESIN, THEREAFTER WASHING THE REGENERATED RESIN FREE OF SAID REGENERATED RESIN IS COVER CONTACTING THE RESULTING REGENERATED RESIN WITH AQUEOUS BASE, WHEREBY SAID REGENERATED RESIN IS CONVERTED TO THE HYDROXYL CYCLE AND IS READY FOR USE IN THE REMOVAL OF CARBONYL SULFIDE FROM A HYDROCARBON STREAM.
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |