Recently, news that a man ‘refined 191 grams of gold from SIM cards’ has drawn widespread attention. This isn’t fantasy—it’s based on real-world e-waste recycling. Old SIM cards, phone motherboards, and other electronic components contain trace amounts of precious metals, including gold, silver, and palladium. Gold is commonly used in electrical contacts due to its excellent conductivity and corrosion resistance. It’s estimated that one ton of discarded mobile phones can yield about 200–300 grams of gold—far exceeding the concentration in natural gold ore, which typically contains only 1–5 grams per ton. The man collected large quantities of used SIM cards and employed chemical refining methods (such as aqua regia dissolution and reduction precipitation) to extract 191 grams of gold. While impressive, this process involves highly corrosive acids and poses serious safety and environmental risks, making it unsuitable for amateur attempts. Professional e-waste recycling facilities possess the proper permits and advanced technologies to safely and sustainably recover valuable materials. This case highlights that electronic waste is an ‘urban mine’—proper recycling not only reduces pollution but also enables valuable resource recovery.
近日，一则‘男子用SIM卡炼出191克黄金’的新闻引发广泛关注。实际上，这并非玄幻故事，而是基于电子废弃物回收的真实案例。旧SIM卡、手机主板等电子元件中含有微量贵金属，包括金、银、钯等。其中，金常用于电路触点，因其导电性好、耐腐蚀。据估算，每吨废弃手机可提取约200–300克黄金，远高于天然金矿的品位（通常每吨矿石仅含1–5克金）。该男子通过收集大量废弃SIM卡，采用化学提纯方法（如王水溶解、还原沉淀等），最终成功提炼出191克黄金。虽然过程看似神奇，但涉及强酸强碱，操作危险且可能污染环境，不建议普通人模仿。专业电子垃圾回收企业具备环保处理资质和高效提纯技术，是更安全、可持续的选择。此事件也提醒公众：电子废弃物是‘城市矿山’，合理回收不仅能减少污染，还能实现资源再利用。
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