Anoxic rod recruitment

Why do copper factories use raw charcoal for smelting? This is because raw charcoal has its irreplaceable advantages. First of all, green carbon has a good pore structure and can fully contact with copper to achieve the reduction effect. Secondly, the ash content of charcoal raw materials is low, resulting in less residue. The most important thing is that raw carbon has good volatilization activity, which can not be achieved by machine-made carbon or other carbon. Due to the variety of raw materials and unstable quality of machine-made carbon, raw carbon is the main industrial carbon in China. Of course, the most suitable is oak charcoal such as Cyclobalanopsis glauca charcoal, followed by pure fruit charcoal and almost miscellaneous charcoal. Some mixed carbon and iron can't be used at all.