Seeking help in removing antimony from electrolytic zinc~~~~
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Our factory recently used a batch of zinc monoxide powder with a high antimony content; the supernatant contained 2500 mg/L of iron, 70 mg/L of antimony, and 3 mg/L of arsenic. The supernatant is sent to the needle iron ore process for iron removal, and the end point of iron removal is reached by neutralizing it with lime to a pH of 5.0. Liquid iron after iron removal
The iron content is on the low side; it is recommended to increase it.
The supernatant contains too much iron and too much antimony, which indicates that insufficient oxidant was added, and the hydrolysis process was likely not thorough enough