Process for producing hydrogen from water
US3939257A · kind A · utility
9Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1973 |
| Grant date | Feb 17, 1976 |
| Priority date | — |
| Expiry date | Aug 20, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the production of hydrogen and oxygen from water comprising the steps of forming ferric chloride from ferriferrous oxide by reaction with a chloride ion yielding substance, reducing the ferric chloride produced with a reducing agent to produce ferrous chloride, and then oxidizing the ferrous compound with water so as to produce hydrogen. Suitable reducing agents include cuprous chloride, chromous chloride and platinum. Several reactant regenerative closed cycle systems are disclosed utilizing the process of this invention for the production of hydrogen with high energy efficiences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.