Development of an inert ceramic anode to reduce energy consumption in magnesium production. Final Report

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The objective of this work is to develop a dimensionally stable ceramic anode for production of magnesium metal in electrolytic cells, replacing the graphite anodes currently used by The Dow Chemical Company magnesium business. The work is based on compositional and design technology for a ceramic anode developed in the former Central Research Inorganic Laboratory. The approach selected is to use a ceramic semiconductor tube as the material to interface with the bath and gaseous atmosphere in the cell. The testing goal was to demonstrate six anodes surviving a 30 day test lifetime with acceptable wear rates and electrical performance ... continued below

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65 p.

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Creator: Unknown. June 1, 1997.

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Description

The objective of this work is to develop a dimensionally stable ceramic anode for production of magnesium metal in electrolytic cells, replacing the graphite anodes currently used by The Dow Chemical Company magnesium business. The work is based on compositional and design technology for a ceramic anode developed in the former Central Research Inorganic Laboratory. The approach selected is to use a ceramic semiconductor tube as the material to interface with the bath and gaseous atmosphere in the cell. The testing goal was to demonstrate six anodes surviving a 30 day test lifetime with acceptable wear rates and electrical performance in a laboratory scale magnesium cell test. State of the art slip casting techniques were used and advanced in the pursuit of a virtually flaw free ceramic anode shell. Novel core materials were also invented to allow for the complete, crack free fabrication of the laboratory scale anode. Two successive anodes were tested and exceeded the 30 day cell lifetime goal with excellent wear characteristics. More aggressive testing of the ceramic anode revealed that the anode had a rather narrow operating region.

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65 p.

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OSTI as DE97053874

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  • Other Information: PBD: Jun 1997

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  • Other: DE97053874
  • Report No.: DOE/ID/13133--T1
  • Grant Number: FC07-91ID13133
  • DOI: 10.2172/530966 | External Link
  • Office of Scientific & Technical Information Report Number: 530966
  • Archival Resource Key: ark:/67531/metadc691243

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  • June 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 13, 2015, 2:49 p.m.

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Development of an inert ceramic anode to reduce energy consumption in magnesium production. Final Report, report, June 1, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc691243/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.