US3789106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for purifying gas mixtures containing particularly co as impurity
Assignee: Air Liquide SA
•
Filing: 1971-06-16
•
Granted: 1974-01-29
•
Expires: 1991-06-16
Abstract
Abstract The present invention has for its object a process by which traces of carbon oxide contained in a gas mixture of which the CO partial pressure is low are eliminated by adsorption, by the said mixture being brought into contact with a purifying mass formed of mordenite charged with copper. The present invention has for its object an improved process for purifying gas mixtures which contain particularly the carbon oxide CO as impurity.
Inventors
- 👤 L Hay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:20
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/064; B01J29/072; B01D; B01D53/00; B01D53/02; C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
23 words
A process according to claim 1, wherein said mordenite is selected from the group consisting of natural mordenite, artificial mordenite and synthetic mordenite.
References Cited (Backward Citations)
US3013985A
Cited
US3185540A
Cited
US3177152A
Cited
US3476508A
Cited
US3346328A
Cited
US3497462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |