#Industry ·2026-02-09
When a mobile phone motherboard is thrown into the trash, it's not "dead"; it's just dormant. 0.3 grams of gold, 13 grams of copper, 0.7 grams of silver, and rare metals such as palladium and indium are quietly lying between the fingernail-sized integrated circuits and PCB pads. Among the 54 million tons of electronic waste generated globally each year, PCBs and chips account for less than 6%, yet they concentrate more than 70% of the metal economic value. Treating waste boards as trash is like burying a high-grade mine in a landfill, while releasing heavy metals, brominated flame retardants, and dioxins, which can render 1 square meter of soil barren for 20 years. The first step of green recycling is to "let the chips come out on their own". The low-temperature solid-state disassembly platform makes the solder joints brittle in a -180 liquid nitrogen environment. Under a high-frequency impact of 6,000 times per second, the BGA-encapsulated chips are completely detached, with 90% of them being reused for re-machining. The PCB substrates enter an oxygen-free pyrolysis furnace, where the resin is gasified for power generation. The copper foil is stripped with 99.96% purity, and 1 ton of waste boards can produce 1.3 tons of recycled copper, with energy consumption only one-eighth of that of mining and metallurgy. The remaining glass fiber powder and precious metal residues are made into microcrystalline glass and urban mining "concentrated blocks", entering a closed-loop of hydrometallurgy: the citric acid-sodium thiosulfate system selectively leaches gold and palladium at room temperature, and then the metal ions are "droplet by droplet" grown into 2-centimeter-square "recycled wafers" using a 3D-printed electrochemical reactor, directly returning to the front end of chip manufacturing. When an old motherboard completes this "rebirth" assembly line, it is no longer waste, but a ticket to a zero-carbon future: every 10,000 tons of PCBs recycled can reduce 32,000 tons of carbon emissions, equivalent to the carbon absorption of 1.4 million trees over 10 years; the saved energy can supply power to 15,000 households for a year. By putting waste boards into the recycling bin, you not only get rid of the trash, but also plant a "mineral source" for the next generation of chips. Today, let's turn the end of electronic waste into the beginning of a circular economy.
2026-02-09
2026-02-09
2026-02-09
2026-02-09
2026-02-09
2026-02-09
No. 15 Industrial Avenue, Industrial Park, Shicheng County, Jiangxi Province
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