Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1979-05-14
1980-05-13
Andrews, R. L.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
423644, 423648R, 423657, 423658, C25B 102
Patent
active
042027446
ABSTRACT:
Hydrogen is produced in a cyclic metals oxidation/carbon reduction process. In particular, elemental iron or cobalt is oxidized in an aqueous solution of an alkali metal hydroxide with the simultaneous generation of hydrogen. The iron or cobalt oxidation products of the reaction are thereafter reduced to elemental iron or cobalt by contact with a carbonaceous reducing agent at elevated temperatures and the reduced material recycled for reoxidation. In an alternate operation, hydrogen is produced in a cyclic electrolytic/carbon reduction process wherein elemental iron or cobalt is electrolytically converted to corresponding oxidation products with the simultaneous generation of hydrogen. The electrolytic cell used in this process comprises a cathode, a magnetic anode that is adapted to attract and retain iron and/or cobalt particles and an aqueous electrolyte. In the electrolytic cell, hydrogen is produced at the cathode and metal particles contained on the magnetic electrode are oxidized to a non-ferromagnetic specie, such as ferrous hydroxide. The non-ferromagnetic species are recovered from the electrolytic cell and thereafter reconverted to particulate elemental iron and/or cobalt by treating the material with a carbonaceous reductant at an elevated temperature.
REFERENCES:
patent: 3615298 (1971-10-01), Benson
patent: 3619142 (1971-11-01), Johnson et al.
patent: 3880987 (1975-04-01), Nahas
Batzold John S.
Pan Yen-Chi
Andrews R. L.
Exxon Research & Engineering Co.
Luecke Jerome E.
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