#Industry ·2026-02-14
A discarded mobile phone motherboard weighs less than 50 grams, but it contains 0.2 grams of gold, 13 grams of copper, palladium, silver, and rare earth elements... When the 5G phone replacement boom collides with the "carbon neutrality" goal, PCB and integrated circuit recycling are no longer just an environmental slogan, but an entry point for urban mining. We adopt the three-step process of "low-temperature desoldering, negative pressure pyrolysis, and ionic liquid selective leaching" to separate heavy metals, brominated flame retardants, and precious metals in one go: 1. Low-temperature desoldering: At 180°C, components are completely detached, and chips can be remanufactured, with solder directly recycled back into the furnace. 2. Negative pressure pyrolysis: Resins are converted into fuel oil and fiberglass is compressed into lightweight aggregates under 600°C and in an oxygen-free environment, with dioxin emissions lower than 0.1 ng-TEQ/m³ in the EU standard. 3. Ionic liquid gold extraction: Using a non-cyanide system, the gold recovery rate reaches 99.5%, with a 95% wastewater recycling rate and a 40% cost reduction compared to the traditional aqua regia method. The results show that each ton of waste boards can extract 150 grams of gold, 130 kilograms of copper, and 5 grams of palladium, while reducing carbon emissions by 1.9 tons, equivalent to planting 100 trees. Let electronic waste no longer be "toxic garbage", but misplaced resources—turning the past of chips into the future of the Earth.
2026-02-14
2026-02-14
2026-02-14
2026-02-14
2026-02-14
2026-02-14
No. 15 Industrial Avenue, Industrial Park, Shicheng County, Jiangxi Province
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