Recycling of rare metallic metallization factories such as gold components using the I2-NAL-H2O system. For the solubility of the gold -plated layer on the waste component, use iron replacement or sodium sulfate to restore the recovery. For acidization of sulfur, potassium chloride oxidize and recycled iodine. The Institute of Material Regeneration has studied a new process of electrolytic refund. Sulfur sulfur and sodium sulfate are used as an electrolyte, graphite is used as cathode plate, and gold -plated waste is used as an anode for electrolytic gold. Through electrolytic, the gold on the coating was oxidized by the anode to AU and then forming a ceda [cs (NH2)] 2 with sulfur sulfur. Pure gold powder. Nickel cobalt can be recycled. The recovery rate of this process is 97 ~ 98%. Product gold purity> 99.95%.
Note: using this process, the annual benefits of a small and medium -sized recycling factories can reach 100 million yuan.
The circuit board can extract gold. Now Small Japan already has this technology and is being used. They are extracted with mobile phones. You can check the information in this area. If you have a chance, just make that technology over^_^
Recycling of rare metallic metallization factories such as gold components using the I2-NAL-H2O system. For the solubility of the gold -plated layer on the waste component, use iron replacement or sodium sulfate to restore the recovery. For acidization of sulfur, potassium chloride oxidize and recycled iodine. The Institute of Material Regeneration has studied a new process of electrolytic refund. Sulfur sulfur and sodium sulfate are used as an electrolyte, graphite is used as cathode plate, and gold -plated waste is used as an anode for electrolytic gold. Through electrolytic, the gold on the coating was oxidized by the anode to AU and then forming a ceda [cs (NH2)] 2 with sulfur sulfur. Pure gold powder. Nickel cobalt can be recycled. The recovery rate of this process is 97 ~ 98%. Product gold purity> 99.95%.
Note:
using this process, the annual benefits of a small and medium -sized recycling factories can reach 100 million yuan.
Chinese silver has heard no, we use this waste electron original to refine gold and silver.
The circuit board can extract gold. Now Small Japan already has this technology and is being used. They are extracted with mobile phones. You can check the information in this area. If you have a chance, just make that technology over^_^
Use Wang Shui (nitric acid: hydrochloric acid = 1: 3) to dissolve, and then replace it with copper.
The knowledge of high school.
All mobile phones can extract rare metals (Japan)! The computer is okay,