NASA NTRS · 19930017491
Lunar mining of oxygen using fluorine
Abstract
Experiments during the first year of the project were directed towards generating elemental fluorine via the electrolysis of anhydrous molten fluorides. Na2SiF6 was dissolved in either molten NaBF4 or a eutectic (minimum-melting) mixture of KF-LiF-NaF and electrolyzed between 450 and 600 C to Si metal at the cathode and F2 gas at the anode. Ar gas was continuously passed through the system and F2 was trapped in a KBr furnace. Various anode and cathode materials were investigated. Despite many experimental difficulties, the capability of the process to produce elemental fluorine was demonstrated.
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Burt, Donald M., Tyburczy, James A., Roberts, Jeffery J., Balasubramanian, Rajan. 1992-01-01. Lunar mining of oxygen using fluorine. https://ntrs.nasa.gov/citations/19930017491
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