Palladium recovery system

System diagram:

Treatment efficiency:

The colloidal palladium recovery system:

• PRINCIPLE:
  The introduction of advanced colloidal palladium adsorption and recovery processes in Japan, its adsorption material after special treatment, with developed surface area, low residue after combustion, and specific metal (palladium, platinum, and gold) adsorption capacity. Using two-stage series adsorption, the treated waste liquid palladium content can be reduced to less than 0.1 PPM, and the palladium adsorption capacity can be up to more than 30g / L.

• Engineering flow sheet:  

Ionic palladium recovery system:

• PRINCIPLE:   
  Palladium-absorbing materials are special organic magnetic materials specially produced for palladium-containing wastewater. Compared with other adsorption materials on the market, it has a more developed inner surface (2 times ~4 times), and its surface area can reach 1400 ㎡ ~2500 ㎡ / g, such as carboxyl groups, internal lipid groups, phenol hydroxyl groups, strengthening the crown group of oxime group and hydroxyl group, improving the selective adsorption of palladium and platinum precious metal ions without adsorption of non-precious metal ions, making the adsorption capacity of palladium ions up to 20~30g / L.
• The reaction of palladium-absorbing material and palladium-containing wastewater can be expressed as：

  CARBON-(CNH)₂+Pd²⁺=Pd（CN)₂-CARBON+2H+

  2CARBON-(CNH)₂+Pd⁴⁺=Pd[（CN)₂-CARBON]₂+4H+

• Engineering flow sheet : 

Process characteristics :

The palladium ion recovery system integrates ion exchange technology to treat the wastewater containing palladium ions, namely recovering palladium ions and preparing recycled water (pure water), the process is advanced and reasonable. It realizes the economic value and has the function of environmental protection. The successful development of this equipment provides a practical method for palladium ion recovery, increases the utilization rate of palladium ions, and has the characteristics of high efficiency, low energy consumption, low investment, and high profit. From then on, we can bid farewell to crude square emissions, move toward intensive utilization, turn waste into treasure, and open source, and reduce expenditure. In line with the requirements of building a harmonious society in the “11th Five-Year Plan” an efficient comprehensive utilization of resources, and promoting the sustainable development of the line version industry, the palladium adsorption recovery system is for palladium-containing wastewater produced in the production process of the circuit board and electroplating enterprises, and fully enriches palladium and adsorption on special materials.

Process characteristics ：

1. Small area, about 2-5 ㎡;
2. Do not use any additives, no secondary pollution;
3. Pd content: palladium content less than 0.1ppm;
4. The output of enriched materials containing palladium up to 20~30g / L;
5. Convenient operation, automatic operation, without special care.