US4204980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for removing iodine from gases
Assignee: American Air Filter Co Inc
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Filing: 1976-01-08
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Granted: 1980-05-27
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Expires: 1996-01-08
Abstract
Abstract A method and composition for removing iodine and organic iodides from an iodine-containing off-gas stream is provided. The composition for the removal is a ceramic material impregnated with a mixture of a metallic salt with a water-soluble secondary amine. The method for removing the iodine and iodide is accomplished by passing the off-gas stream over the ceramic impregnated with the metallic salt-amine mixture.
Inventors
- 👤 Mohiuddin Pasha
- 👤 David K. O'Hara
- 👤 Joseph A. French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:07
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/007; B; B01; B01D; B01D53/00; B01D53/02; G21F9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A radioactive iodine-iodide sorbent material comprising a ceramic material impregnated with a mixture of silver nitrate and a water soluble secondary amine, said amine comprising triethylene diamine.
Claim 2
Dependent Claim
27 words
A radioactive iodine-iodide sorbent material comprising a ceramic material impregnated with a mixture of silver nitrate and a water soluble secondary amine, said amine comprising triethylene diamine.
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) | 1983-05-27 | 1983-11-26 | 1984-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-27 | 1987-11-26 | 1988-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-27 | 1991-11-26 | 1992-05-27 | $7700.00 | Window Closed / Lapsed |