Arsenites/Arsenates TRIZ Cases
- Thiocarbonyl Reagents Prevent Passivation in Acidic Sulfate Leaching
Adding a thiocarbonyl compound to acidic sulfate solutions prevents mineral surface passivation, enabling higher copper and nickel recovery rates.
- Antimony Arsenic Separation from Leach Solution
Segmenting flotation, leaching, and oxidation stages removes antimony and arsenic impurities while recovering copper and lead.
- Calcium Phosphate Layer Formation on Silicon Substrates
In situ formation of calcium phosphate layers on silicon substrates using a calcium silicate hydrate intermediate reduces process complexity and material costs.