Smelting is the core process of waste copper treatment, which involves melting waste copper at high temperatures, adjusting the mechanical properties of the alloy by adding alloying elements, and then preparing copper materials for various purposes through subsequent casting or processing. The smelting process requires strict control of the quality, composition, and temperature of raw materials to ensure the quality of the final product. At the same time, a large amount of exhaust gas, waste residue, and waste liquid will be generated during the smelting process, which requires effective environmental protection treatment.
For some high-purity scrap copper materials, such as electroplated copper and electronic components, they can be processed through electrolytic refining. Electrolytic refining is the process of separating metal elements from anode mud through electrolysis, and then further processing them to prepare various high-purity metals. The electrolytic refining process requires a large amount of electricity and chemical reagents, resulting in higher costs. However, electrolytic refining can obtain high-purity metal materials with high added value.