What are the methods for removing arsenic from acidic solutions?
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What are the methods for removing arsenic from acidic solutions in the processes of copper electrolytic refining, copper electrowinning, and sulfuric acid production? Are there any factories, domestic or international, that are using some of these methods? Are there any industrial applications of extractants for arsenic removal?
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In pickling solutions, sodium sulfide is typically used to produce hydrogen sulfide, which then reacts with arsenic to allow for its precipitation and removal.
Yes, that’s right. Nowadays, precipitation is generally used to remove arsenic, but what happens to the arsenic that has been removed? How is solid arsenic generally handled these days? Many of them have been discarded, I wonder if it’s possible to recycle them?
What resins can be used to selectively remove arsenic absorbed by them, and how is that arsenic disposed of afterward? Discard it?
It is said to be usable for solar photovoltaic panels (gallium arsenide indium)
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The purity requirements for arsenic used in solar energy are very high, its price is also high, but the market is not large.
Indeed, I also want to know what the uses of arsenic are and where its market lies
Induced arsenic removal methods, TBP extraction, ion exchange, activated carbon adsorption, adsorption using other adsorbents, or no arsenic removal and direct electrolysis using cathode potential control.
That makes sense; it seems to be the case mainly these days, right?