“炼金”视频热传！SIM卡真能提炼黄金？

Core Viewpoint - The viral video showcasing the extraction of gold from SIM cards has sparked significant public interest, but the claims regarding the amount of gold in SIM cards are misleading and exaggerated [2][4]. Group 1: Gold Extraction Claims - A video claims that a person extracted 191.73 grams of gold from electronic waste, including SIM cards, but this was based on 2 tons of raw material, not solely SIM cards [2][4]. - The assertion that each SIM card contains 0.02 grams of gold is a myth; in reality, a Nano-SIM card may yield only 0.02 milligrams of gold, a difference of 1000 times [4]. Group 2: Industry Insights - The precious metal recovery industry is well-established, with various electronic devices, including SIM cards, often having gold plating to prevent oxidation [4][7]. - The extraction process is complex and requires significant expertise, as well as adherence to legal regulations regarding hazardous materials [5][6]. Group 3: Economic Viability - For individuals, the economics of extracting gold from SIM cards is unfavorable due to low gold content, high chemical costs, and stringent legal requirements [9]. - Only large-scale operations can achieve profitability in precious metal recovery, making it impractical for casual or individual attempts [9].