Pickling of refractory metals
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United States of America Statutory Invention Reg
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Nov 4, 2003
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N/A
app pub date -
May 19, 1998
filing date -
May 19, 1998
priority date (Note) -
Expired
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Abstract
Refractory metal pickling bath of HF/H.sub.2 O.sub.2 aqueous solution with recovery of the etched metal as a salt thereof and separation of dissolved impurities taken from the refractory metal, with avoidance of drawbacks of state of the art HF/HNO.sub.3 pickling solutions.
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