男子用SIM卡炼出191克黄金？遭质疑后当事人回应

Core Viewpoint - The topic of "a man extracting 191 grams of gold from SIM cards" has sparked significant online discussion, with various opinions on the validity and safety of the practice [1] Group 1: Gold Extraction Process - The individual involved clarified that the gold was extracted not from a single SIM card, but from a collection of gold-plated electronic waste materials from the telecommunications sector [4] - The reported weight of "191.73 grams" refers to a specific batch of processed material, which has been misrepresented as being derived solely from SIM cards [4] - The extraction process is part of the precious metal recovery industry, focusing on compliant extraction from specific electronic waste, rather than a casual personal endeavor [4] Group 2: Safety and Environmental Concerns - The gold content in a typical SIM card is very low, approximately 0.02 grams per card, making personal extraction impractical due to the minimal yield [4] - The extraction process involves the use of highly corrosive chemicals, posing significant safety hazards and environmental pollution risks, which discourages individual attempts at extraction [4][2]