Cobalt sulfate solution to remove cadmium ions
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Dear metallurgy experts, does anyone know what processes or equipment are used to remove cadmium ions from cobalt sulfate? Cobalt 100, cadmium 0.06, pH: 3-4; cadmium needs to be reduced to ≤0.002
Search for papers and conduct experiments. It’s not necessarily necessary to remove them at this step; it may be better to handle it at the upstream stage. Common methods include resin adsorption, chemical complexation, precipitation, and filtration – the specific approach requires further research on one’s part
For large-scale processing, electrolytic separation is recommended. Cadmium is much more reactive than cobalt, so by controlling the potential during electrolysis, cobalt can be separated from the solution, resulting in essentially pure cobalt with impurities of cadmium kept below 0.2%, which is absolutely no problem. Other wet separation methods are difficult to achieve.
Thank you! The problem has been solved.
Thank you, the problem has been solved. It is capable of removing Cd from the solution to below 0.8 ppm.
The unit is grams per liter, right? Check the solubility product constant
I would like to ask whether a cobalt sulfate solution with p204 can reduce the cadmium level from 3 ppm to 0.3 ppm, and how can this be controlled in the production process?