Electropolishing solution and methods for its use and recovery
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United States of America Patent
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app pub date -
Oct 6, 2004
filing date -
Sep 13, 2002
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Abandoned
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Abstract
An electrolyte solution containing an alkylene glycol and a chloride salt is useful for electropolishing metal substrates. An electropolishing method using the electrolyte solution is effective for polishing a varied of metals, including titanium and noble metals. The method avoids the handling and disposal challenges associated with previous methods using etching solutions containing hydrofluoric acid. A method of recycling the spent electrolyte solution is also described.
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