Thermochemical generation of hydrogen and oxygen from water

Patent · Wed Dec 31 23:00:00 EST 1980

OSTI ID:863922

Robinson, Paul R ^[1]; Bamberger, Carlos E ^[2]

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1. Knoxville, TN
2. Oak Ridge, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4276279
• OSTI ID: 863922
• Country of Publication: United States
• Language: English

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cyclic
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manganate
manganese
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