Method for removing thallium from a zinc-containing solution
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United States of America Patent
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Jan 12, 2010
Grant Date -
Aug 17, 2006
app pub date -
Feb 24, 2004
filing date -
Nov 12, 2003
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Abstract
This invention relates to a method for removing thallium from a zinc-containing solution. In particular, the method relates to the purification with metallic zinc powder of a solution going to the electrolytic production of zinc. In this method, thallium is removed by means of a lead compound in the solution purification stage, either during the final purification stage or in a purification stage in which cadmium is precipitated.
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