NOUFERROUS METALLURGICAL EQUIPMENT

Platinum is an important strategic precious metal resource. It has an irreplaceable role as a petrochemical catalyst and automobile exhaust purification catalyst. In the future， with the mature development of fuel cell technology， the market demand for platinum will be further increased. The domestic platinum resources are scarce and mainly rely on imports. The recycling of platinum from anode slime， catalysts， tailings and other resources has become the research focus of the non-ferrous industry. To recover platinum metals from spent catalysts， the copper and iron metal capture technology in the pyrotechnic process is relatively mature abroad， but there is still little research in this area in my country. For the purification process of platinum metal， although the traditional selective precipitation separation technology has been eliminated， some selective precipitation technologies is still an important method for refining pure metals. At present， domestic companies have combined the traditional selective precipitation separation process with solvent extraction and ion exchange to purify platinum metals， and have achieved good economic benefits and platinum metal products. In the future， the development of simple， efficient， and low-cost platinum metals purification and recovery processes is of great significance to the safety of mineral resources in China.