Carbon Anode scrap is the residual part of the Prebaked Carbon Anode Block that was used in the electrolytic tank, Carbon Anode Butts or Spent Anode is another name for it, It is called Waste Carbon Block or Reject carbon Anode in many countries. RELATION WITH COKE：in the process of waste metal smelting, metallurgical coke and foundry coke has low sulfur content, high ash content and low fixed carbon content, carbon anode scrap show opposite characteristics as fixed carbon content is more than 97%.But the sulfur content of the carbon anode scrap is usually about 2%.So it is used
together with foundry coke for smelting production as fuel.Thereby reduce smelting cost of waste metal because the calorific of carbon anode scrap is usually 1.5 times that of coke.It is high in calorific value and low in Ash, which also makes it a highly efficient source of energy and cost-effective material for smelting processes.
As the sulfur content of carbon anode scrap actually depends on the calcined petroleum coke used to produce carbon anode, the ash content usually increases slightly on the basis of calcined petroleum coke, but its ash content is much less than that of foundry coke. As a result, when the sulfur content can be controlled, carbon anode scrap is a ideal fuel to smelting waste metal.