What does electrode paste contain?

Electrode paste is a crucial component in various industrial processes, particularly in the production of ferroalloys, calcium carbide, and other metals through the process of submerged arc furnaces. The composition of electrode paste can vary depending on its intended use, but typically it contains a mixture of several ingredients including:

Coke Breeze: This is a form of carbonaceous material derived from coal or petroleum. Coke breeze provides the primary source of carbon in the paste, which is necessary for the reduction reactions that occur during the smelting process.

Coal Tar Pitch: This serves as a binder for the paste, helping to hold the other ingredients together. Coal tar pitch is a viscous, black liquid derived from the distillation of coal tar.

Anthracene Oil: This is another binder commonly used in electrode paste formulations. It is a byproduct of coal tar distillation and helps improve the plasticity and adhesion of the paste.

Calcined Anthracite: This is a type of high-grade coal that has been heat-treated to remove volatile components. Calcined anthracite is added to electrode paste to increase its carbon content and improve conductivity.

Graphite: Graphite is a form of carbon with high electrical conductivity and thermal stability. It is often added to electrode paste formulations to enhance conductivity and improve the performance of the electrodes.

Additives: Various additives may be included in electrode paste formulations to improve specific properties such as strength, thermal conductivity, or resistance to oxidation.

The exact composition and proportions of these ingredients can vary depending on factors such as the specific application of the electrode paste and the requirements of the smelting process.