Copper and Bronze
Active use of copper and bronze occurred as a result of its availability and fairly simple extraction from various compounds and alloys.
Copper is obtained from sulfide ores. To obtain copper, a very large amount of mineral raw materials must be processed.
In metallurgical plants, mined ore is processed and roasted. The roasting process takes place in special furnaces, which is necessary to remove sulfur from them.
The result is a copper concentrate.Melting is carried out at a temperature of more than 1000°C.
As a result of many processes, blister copper is obtained, then various impurities are removed therefrom. Metal is melted in special furnaces. Red copper forms as a result. Noble metals are also extracted with copper.