what silver content does it become worthwhile to make a separate selection? What temperature is required during smelting?

For separate silver processing, a concentration of 50 grams per ton or higher warrants the use of zinc wire or zinc powder for replacement.

During smelting, a temperature of at least 1300 degrees Celsius is required. Both gold-containing and silver-containing materials can be melted at this temperature. It’s important to note that this temperature refers to the melting of the raw materials, not the pure gold or pure silver.