| Use aqua regia to treat the iridium in the iridium containing resin. Experiments have shown that the dissolution rate of metal iridium can reach 90%, and the metal will not be lost. The effects of aqua regia concentration, heating temperature, holding time, and material liquid ratio on the dissolution rate of iridium were investigated; Under the optimal conditions of 80% aqua regia concentration, heating temperature at 85 ℃, holding time of 1.5 hours, and a material liquid ratio of 1:3, the dissolution rate of metallic iridium can reach 90%. |
