From waste boards to rich ores: the green rebirth of PCBs and chips

When a mobile phone motherboard is thrown into the trash, it doesn't "die" — it just enters a dormant state.
0.3 grams of gold, 13 grams of copper, palladium, silver, rare earths... These urban minerals, locked in resin and silicon chips, are waiting for a green awakening.
We adopt a three-step method of "low-temperature desoldering negative pressure thermal dissociation ion sieving": first, melt the solder at 180°C to completely detach the chip; then, convert the resin into fuel oil in an oxygen-free chamber, leaving behind fiberglass powder; finally, dissolve the precious metals into an "electronic soup" with bioleaching, and then electroplate them to "turn lead into gold".
Throughout the process, no cyanide or strong acids are used, and VOCs emissions are lower than 30% of the EU standard.
For a single waste board, 95% of the materials return to the industrial chain, and the carbon footprint is reduced by 82% compared to primary mining and smelting.
Let every technological iteration no longer be a burden on the Earth, but the starting point of a circular economy.