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Lunar mining of oxygen using fluorineExperiments 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.
Document ID
19930017491
Document Type
Other
Authors
Burt, Donald M. (Arizona State Univ. Tempe, AZ, United States)
Tyburczy, James A. (Arizona State Univ. Tempe, AZ, United States)
Roberts, Jeffery J. (Arizona State Univ. Tempe, AZ, United States)
Balasubramanian, Rajan (Arizona State Univ. Tempe, AZ, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1992
Publication Information
Publication: NASA Space Engineering Research Center for Utilization of Local Planetary Resources
Subject Category
INORGANIC AND PHYSICAL CHEMISTRY
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19930017485Analytic PrimaryNASA Space Engineering Research Center for utilization of local planetary resources