What are the most representative stunts and stunts of platinum group metal refiners in China?

The "color judgment method" invented by Pan Congming has become the most representative "stunt" and "stunt" of platinum group metal refiners in China. His "green and efficient extraction technology of platinum, palladium, rhodium and iridium from nickel anode mud" has broken through the technical bottleneck of long process flow, low resource utilization rate and poor adaptability to complex raw materials.

In the past 26 years, Pan Congming has grown from an ordinary worker to a national model worker, a great country craftsman and a leading talent in Gansu Province. His struggle has pushed China manufacturing and China precious metal metallurgy technology to a high, precise and sophisticated level.

The industrial legend of "Didi Jin"

The content of platinum group precious metals in nickel mine waste residue is extremely low. To purify one gram of high-purity precious metals, more than 60 kinds of chemical reagents are needed, and at least 5 tons of nickel ore residues are repeatedly extracted through more than 20 processes and more than 200 technical control indexes.

From waste residue to liquid, from liquid to precious metals, Pan Congming and his team are trying to extract platinum group precious metals from the mountain of waste residue. Every working procedure and every control index will make the liquid produce different color changes. Pan Congming used a pair of keen eyes to observe the extremely subtle color changes in turbid liquid.

After tens of thousands of repeated experiments day and night, Pan Congming chewed 120 professional books, wrote dozens of notes, and repeatedly pondered 800 chemical equations of precious metal smelting process. Through continuous experiments, he overcame the world-wide technical problems such as green and efficient extraction technology of platinum, palladium, rhodium and iridium in nickel anode mud and collaborative and efficient extraction technology of copper and precious metals in complex raw materials, and realized the modern stage of "dripping water wears away the stone".