US3821358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed-cycle thermochemical production of hydrogen and oxygen
Assignee: General Electric Co
•
Filing: 1973-02-01
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Granted: 1974-06-28
•
Expires: 1993-02-01
Abstract
Abstract A process is disclosed for the multi-step closed-cycle thermochemical production of hydrogen and oxygen. Water is split into hydrogen and oxygen at separate stations by the use of copper compounds circulating in a sub-cycle, magnesium compound circulating in a sub-cycle and chlorine generated in the copper sub-cycle.
Inventors
- 👤 L Interrante
- 👤 R Wentorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:38
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/02; C01B13/0203; C01B13/0207; C01B3/00; C01B3/02; C01B3/06; C01B3/103; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/36
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
27 words
The process of claim 1 wherein the disproportionation of the cuprous halide occurs in the presence of a quantity of a material containing an organic chelating group.
Claim 2
Dependent Claim
20 words
The process of claim 2 wherein the halogen is chlorine and the material containing an organic chelating group is ethylenediamine.
Claim 3
Dependent Claim
26 words
The process of claim 1 wherein the halogen is chlorine and the disporportionation of the CuCl occurs in the presence of a hydrogen ion exchange resin.
Claim 4
Dependent Claim
24 words
The process of claim 1 wherein the halogen is chlorine and the disproportionation of the CuCl occurs in the presence of water and HCl.
Claim 5
Dependent Claim
25 words
The process of claim 1 wherein the catalyst introduced for the halogen/H2O reaction is selected from the group consisting of cobalt salts and nickel salts.
Claim 6
Dependent Claim
20 words
The process of claim 2 wherein the halogen is chlorine and the material containing an organic chelating group is 1,3-propanediamine.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |