How do we recycle ruthenium catalysts, and why is it important to recycle these catalyst materials? With these questions in mind, let’s delve into today’s topic.
Platinum group metal
Used catalysts are generally mixed with various reaction products, so we need to use some solvents to wash the catalysts and remove those unnecessary attachments. After cleaning, the next step is the extraction of ruthenium. We dissolve it in strong acids, where ruthenium can be dissolved in these acidic environments, while the other components of the catalyst will not.

Once we have a solution of ruthenium, the next step is to refine pure ruthenium. At this point, we can add certain chemicals to precipitate the ruthenium from the solution. The precipitated ruthenium must then undergo a series of steps, including drying and calcining, to finally obtain pure ruthenium.

At this point, you might think that the process of recycling ruthenium catalysts is quite complicated. Indeed, it is. But think about it, this process turns waste into treasure, a win-win situation, so why not do it?