Patent · US Expired

Process for producing hydrogen and oxygen from water

US4075313A · kind A · utility

3Cited by
3References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 18, 1976
Grant dateFeb 21, 1978
Priority date
Expiry dateMar 18, 1996

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, thermally reducing the ferric chloride to produce ferrous chloride, reducing the ferrous chloride to metallic iron, then oxidizing the metallic iron with water so as to produce hydrogen. The metallic iron may be formed by reducing the ferrous compound with hydrogen. Two specific reactant regenerative closed cycle systems are disclosed utilizing the process of this invention for the production of hydrogen and oxygen.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.