How to recover indium from high-arsenic, lead-containing indium ash
Thread Content
Our company has a batch of lead ash containing about 20% lead, 40%-50% arsenic, and around 5000 grams of indium. What is the most cost-effective way to extract indium from it? ? ?
Sulfuric acid leaching, extraction, back-extraction, zinc powder displacement, electrolytic refining.
Through wet dissolution, the main elements arsenic, lead, and indium are separated first; once those are removed, the rest is easy to handle
There are roughly over 2,000 tons of lead ash
Sulfuric acid is used to leach the ash, limestone is used to neutralize the leachate, and the resulting filtrate is extracted with P204 to produce sponge indium. Is your ash from Yunnan? I was previously exposed to the ash content of enterprises in Yunnan, and it is relatively close to the data you provided
Could you provide more detailed information on the processes used to remove each component, as well as the sequence in which they are removed? 2,000 tons in quantity