Electrogalvanizing utilizing primary and secondary zinc sources
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United States of America Patent
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Nov 12, 1985
Grant Date -
N/A
app pub date -
Jan 31, 1985
filing date -
Jan 31, 1985
priority date (Note) -
Expired
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Abstract
A hydrometallurgical process is provided to electrogalvanize steel, utilizing primary and secondary zinc sources. The process consists of leaching the feed in a mildly acidic solution. The zinc is selectively recovered from the leach liquor in a solvent extraction system and thereafter stripped from the solvent using a stronger acidic solution to provide a strip solution which is fed to an electrogalvanizing bath for electrogalvanizing steel products, e.g., sheet steel, using insoluble anodes. Acidic solutions and organic solvent are recycled in the process.
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