Prebaked anode residue is the part that needs to be replaced from the electrolytic cell with a new one in order to prevent the steel claw from melting after the prebaked anode is used on the electrolytic cell for a cycle. After calcination at high temperature, the residue has the characteristics of lower mechanical strength and porosity than petroleum coke. Using residue as the raw material of carbon products can improve the quality of electrode paste of carbon products to a certain extent.
The influence of hard residue with different particle size and proportion on the performance of electrode paste is obtained. When the particle size range is 20 ~ 8mm, the addition proportion is 20%.