METHOD OF REMOVING LEAD MATERIALS TO REGENERATE ANODE FOR MANUFACTURING COPPER FOIL
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Apr 25, 2024
app pub date -
Feb 23, 2023
filing date -
Feb 23, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a method of removing lead materials from an anode for manufacturing copper foil to regenerate the anode. The method includes cleaning solution preparation, anode cleaning and anode washing. The cleaning solution preparation includes preparing a cleaning solution containing an aqueous solution of EDTA and citric acid. The cleaning solution used to perform the anode cleaning has a pH of 7 to 9 and a temperature of 20 to 50° C. The anode cleaning includes cleaning the anode by immersing the anode including the lead materials attached to the surface thereof in the cleaning solution to perform EDTA-Pb chelation. As a result, the transfer of the lead materials from the anode to the cleaning solution means substantial removal of the lead materials from the anode. The anode, from which the lead materials have been removed, is washed using a high-pressure washer.
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International Classification(s)
- 2023 Application Filing Year
- C25D Class
- 309 Applications Filed
- 61 Patents Issued To-Date
- 19.75 % Issued To-Date
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- 0 Citation Count
- C25D Class
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- 1 Age