💡Using a lead collector with an acidic flux, such as borax and silica sand, can yield the best results in recovering precious metals.
🔥Higher temperatures during cupelling can help remove more lead and improve the recovery of platinum and palladium.
🌪️Adding silver as a collector metal can help eliminate more lead content and increase the purity of the final metal product.
🔍Analysis of the slag composition can help identify potential contamination sources and optimize the smelting process.
🤔Consider further research on tantalum in catalytic converters to uncover its source and potential value in recycling.