The entire process of wet recovery of iridium

Wet method is one of the most common methods for recovering iridium, and it is suitable for processing various types of iridium waste, including iridium catalysts, iridium impregnated materials and waste iridium compounds. The core of wet iridium recovery is to extract iridium metal from iridium-containing waste through a chemical dissolution and purification process.

The first step in wet recovery of iridium is physical separation and crushing to increase the removal area of iridium materials and subsequent chemical reagents. The iridium waste is then dissolved in an appropriate acidic solvent to convert the iridium solid form into iridium ions in solution.
The subsequent key step is the chemical precipitation of iridium. In this step, we add hydrogen or methanol as a reducing agent for iridium ions to reduce the iridium ions in the solution into iridium metal precipitation. The precipitated iridium metal is then filtered and washed to remove impurities.
Finally, iridium purification is required, which includes a series of chemical and electrochemical processes to improve the purity of iridium waste recycling and meet the needs of industrial applications. Through repeated dissolution, precipitation and purification steps, high-purity iridium metal can be obtained.
Compared with other iridium recovery methods such as dry methods, the advantage of wet iridium recovery lies in its adaptability. It can handle various forms of iridium waste, control chemical reactions more accurately, and improve the recovery rate and purity of iridium. In the future, breakthrough points for wet recovery of iridium may include improving processing efficiency, reducing costs and reducing environmental impact. Through technological innovation and process optimization, wet recovery of iridium will play a greater role in resource recycling and environmental protection.