US3607004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing traces of hydrogen sulfide contained in gases
Assignee: IFP Energies nouvelles
•
Filing: 1968-10-21
•
Granted: 1971-09-21
•
Expires: 1988-10-21
Abstract
Abstract The present invention relates to the elimination of traces of hydrogen sulfide from gases containing same by passing the contaminated gas through a liquid phase containing iodine dissolved in an organic solvent selected from the group consisting of sulfoxides, alkylene glycols, polyalkylene glycols, ethers of alkylene glycols and polyalkylene glycols, esters of alkylene glycols, esters of polyalkylene glycols and liquid aromatic hydrocarbons, said liquid phase containing not substantially more than 10 percent, by weight, of water.
Inventors
- 👤 Andre Deschamps
- 👤 Philippe Renault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:12
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/52; B01D53/523
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
23 words
The process of claim 1, wherein the water concentration in said liquid phase is not permitted to exceed about 5 percent, by weight.
Claim 2
Dependent Claim
13 words
The process of claim 1, wherein said liquid phase is maintained substantially water-free.
Claim 3
Dependent Claim
16 words
The process of claim 1, wherein said liquid phase contains 0.01-15 percent, by weight, of iodine.
Claim 4
Dependent Claim
16 words
The process of claim 1, wherein said liquid phase contains 0.1-1.0 percent, by weight, of iodine.
Claim 5
Dependent Claim
18 words
The process of claim 1, wherein said liquid phase is maintained at a temperature of 10* -80* C.
References Cited (Backward Citations)
US1034646A
Cited
US1890874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |