Stainless steel pickling in an oxidizing, electrolytic acid bath
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United States of America Patent
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Feb 28, 2017
Grant Date -
Mar 28, 2013
app pub date -
Sep 26, 2012
filing date -
Sep 26, 2011
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Abstract
A pickling process designed for pickling a metal strip such as a stainless steel strip reduces the amount of HF and/or HNO3. The strip is immersed in at least one first pickling tub that contains a mixture of an acid such as H2SO4, an excess of at least one oxidizing agent, and includes electrodes that may apply a current to the strip that runs through the mixture.
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