Thermochemical generation of hydrogen and oxygen from water

Details Thermochemical generation of hydrogen and oxygen from water Thermochemical generation of hydrogen and oxygen from water

1980-11-14

1982-01-05

Thomas, Earl C.

Chemistry of inorganic compounds

Hydrogen or compound thereof

Elemental hydrogen

423579, 423598, 423599, C01B 102

Patent

active

043094031

ABSTRACT:
A thermochemical cyclic process for the production of hydrogen exploits the reaction between sodium manganate (NaMnO.sub.2) and titanium dioxide (TiO.sub.2) to form sodium titanate (Na.sub.2 TiO.sub.3), manganese (II) titanate (MnTiO.sub.3) and oxygen. The titanate mixture is treated with sodium hydroxide, in the presence of steam, to form sodium titanate, sodium manganate (III), water and hydrogen. The sodium titanate-manganate (III) mixture is treated with water to form sodium manganate (III), titanium dioxide and sodium hydroxide. Sodium manganate (III) and titanium dioxide are recycled following dissolution of sodium hydroxide in water.

REFERENCES:
patent: 2111460 (1938-03-01), Rockstroh
patent: 2427709 (1947-07-01), Brimm
patent: 4169884 (1979-10-01), Bamberger et al.
patent: 4230682 (1980-10-01), Bamberger

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