How do you refine gold from electronic scrap?
In the process of refining gold from electronic waste, a series of process technologies and equipment processes are used to ensure efficient recycling of gold resources. The following is a detailed process description:
1. Crusher crushing: First use a hammer or cone crusher to roughly crush the electronic waste into particles with a particle size of 20-50mm. This step helps improve the efficiency of subsequent processing.
2. Magnetic separation: By using a strong magnetic field, magnetic materials such as sulfides and iron metals in electronic waste are adsorbed and removed. This step can effectively remove impurities and improve the purity of gold.
3. Grinding machine: Grind non-magnetic materials through ball mill to less than 200 mesh. This can increase the surface area of the material, improve reaction efficiency, and create more favorable conditions for subsequent steps.
4. Reflow smelting furnace: Add reducing agent into the high-temperature reduction furnace to nucleate and precipitate gold. This step uses high temperature conditions to separate the gold from the scrap and form a solid metal that can be processed.
5. Waste liquid etching: add a higher concentration acid solution to the slag for etching, and extract the dissolved metal ions from it. This step allows the gold to remain in solution, ready for the subsequent extraction process.
6. Electrolytic extraction: Send the etching solution into the electrolytic tank, and use electrolysis to extract gold from the solution. Through the process of electrolysis, gold can be extracted in a targeted manner and a high-purity metal can be obtained.
7. Concentration and refining: Add specific chemical reagents to precipitate gold from the solution, and obtain high-purity gold particles after heat treatment. This step helps further improve the purity and quality of the gold.
8. Material dump: Finally, conveyor belts and other equipment are used to transport and collect the selected powder and residue. This allows the various materials produced to be sorted and processed, ensuring the safety and efficiency of the entire process.
By giving full play to physical and chemical principles and using advanced equipment processes, gold in electronic waste can be efficiently recycled. This not only helps protect the environment and reduce resource waste, but also brings considerable economic benefits to the metal recycling industry. We are committed to providing advanced technology and equipment to help customers achieve best practices in sustainable development and resource utilization. When you choose our solution, you will get an efficient and reliable gold recycling process that turns e-waste into precious metals such as gold.
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