Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1991-09-24
1993-07-13
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204105R, 204112, 204104, C25B 102, C25B 122, C25C 106
Patent
active
052270327
ABSTRACT:
Methods for producing oxygen from metal oxides bearing minerals, e.g. ilmenite, the process including producing a slurry of the minerals and hot sulfuric acid, the acid and minerals reacting to form sulfates of the metal, adding water to the slurry to dissolve the minerals into an aqueous solution, separating the first aqueous solution from unreacted minerals from the slurry, and electrolyzing the aqueous solution to produce the metal and oxygen; and in one aspect, a process for producing a slurry with ferrous sulfate therein by reacting ilmenite and hot sulfuric acid, adding water to the slurry to dissolve the ferrous sulfate into an aqueous solution, separating the aqueous solution from the slurry, and electrolyzing the aqueous solution to produce iron and oxygen. In one aspect, these process are suitable for producing oxygen in outer space, e.g. on the moon or Mars.
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Fein Edward K.
Gorgos Kathryn
Miller Guy M.
Niebling John
Schlorff Russell E.
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