It is usually called waste pre-baked carbon anode or waste carbon anode which  is qualified physical and chemical after baked the carbon anode.It can be

Coal：Coal by screening processing refers to remove gangue , pyritefrom the ground or underground mining coal which  without cleaning and processig The fine washing raw

graphite scrap is a kind of apparently defect product of carbon electrode after baking and before graphitization. It’s physical and chemical index belongs to the

In the field of carbon anode production for aluminum, the production kiln of calcined petroleum coke is generally divided into a fixed bed and a

Retort calciner and rotary kiln are the two main types for petroleum coke calcination. Rotary kiln is widely used in Europe and the United States,