Title:
METHOD FOR REFINING ALUMINUM CHLORIDE-BASED MOLTEN SALT ELECTROLYTE BATH
Document Type and Number:
Japanese Patent JPH04254600
Kind Code:
A
Abstract:
PURPOSE:To prolong the service life of an aluminum chloride-based molten salt electrolyte bath by specifying the aluminum chloride content of the bath and removing the precipitated insolubles from the bath. CONSTITUTION:The composition of a two or multiple-component molten salt electrolyte bath contg. aluminum chloride and at least other chlorides such as NaCl is adjusted by heating the bath and so on so that the aluminum chloride content is controlled to <=50mol%. Consequently, the water and metallic impurities in the bath are precipitated on the bottom of a vessel, and the precipitates are drawn off from the bottom and removed. Aluminum chloride is then added to the refined bath to obtain a desired bath composition.
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Inventors:
YAMAMOTO YASUHIRO
TSUDA TETSUAKI
UCHIDA JUNICHI
SETO HIROHISA
ABE MASARU
KURAHO HIROFUMI
TSUDA TETSUAKI
UCHIDA JUNICHI
SETO HIROHISA
ABE MASARU
KURAHO HIROFUMI
Application Number:
JP1352191A
Publication Date:
September 09, 1992
Filing Date:
February 04, 1991
Export Citation:
Assignee:
SUMITOMO METAL IND
International Classes:
C25C3/06; C25C7/06; C25D3/66; C25D21/18; H01M10/39; (IPC1-7): C25C3/06; C25C7/06; C25D3/66; C25D21/18; H01M10/36; H01M10/39
Attorney, Agent or Firm:
Hirose Shoichi
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