Exploration of the reasons for the high copper content in anode sludge during copper electrolysis
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Recently, the anode slime in our company’s process has taken on a slight yellow color, and the experienced workers suspect that this might be due to a high copper content in it. I did a test, and the copper content in the anode sludge after drying was around 15%, which is indeed on the high side. I would appreciate it if fellow sailors could help analyze the reasons for the high copper content in the anode sludge Degree of filtration, raw materials, was cuprous oxide formed? Copper(I) chloride? ? I’m not quite sure about the reasons behind the increase in copper content in anode sludge recently. Although it varies depending on the specific conditions of each facility, there should be some underlying patterns to it. I hope fellow experts can offer their insights and discussions; thank you~
Copper content is only 15%, which is pretty good, haha
I’m not sure about your copper electrolysis process; if the conditions aren’t properly controlled, it’s possible that the iron content is too high, and the iron causes copper to be carried out
The anode copper has too high an oxygen content or too high a Ni content. What about the granulation on the surface of the cathode copper plates?
It’s best to check the composition of the anode plate; this might be quite crucial. Our factory has encountered similar problems in the past, while other anodes didn’t present many issues. Was the anode used by the poster made from recycled copper?
Anode sludge with 15% copper is normal; check to see if there are any other components added.
The copper content in the anode sludge is not high; it’s necessary to check whether there are any other elements present as well.
Comparatively speaking, an anode slime containing 15% copper is not considered high; currently, the copper content in electrolytic copper anode slimes ranges from 10 to 20%, with some having even lower levels. I wonder if the original poster has analyzed the copper content in anode sludge before? If it is higher compared to previous data, it may be caused by the quality of the anode plates and other production conditions.
It’s likely that the oxygen content in the anode plate is too high; it’s best to take a sample for analysis to ensure that the recovery rate isn’t affected.
A 15% content is not too high. I would also like to ask: the pumps used in our factory are alloy pumps, which are prone to corrosion and wear. I was wondering what material your pumps are made of.