Smelting gold is the ability to extract the gold from the ore it is combined with. After smelting the gold is around 90 % pure but not acceptable for the market because it still contains other minerals like silver, copper, aluminum or iron.
Most important part of the gold mining process because if done improperly, gold will remain in the ore and profits will be lost. All profits from gold are settled by purity and weight so the more impure your product the less it is worth and the more gold you lose, the less you will net in the end.
Large companies normally smelt gold on site to cut down on costs but cannot refine gold themselves.
Smelting gold is accomplished by using high pressure, heat and various chemicals to breakdown the ore and melt the gold to separate it from the impurities.
The gold must be heated to an excess of 1046 degrees Celsius or 2150 degrees Fahrenheit.