What Role Does Graphite Anode Play In The Electrolysis Of Magnesium And Sodium?

- Jul 17, 2020-

Magnesium is a light and highly reducing metal that plays an important role in various industries.

One of the large-scale production methods of magnesium is the commonly used magnesium chloride electrolysis method. The electrolytic bath is a mixture of MgCl2, NaCl2, KCI and CaCl2, the anode is artificial graphite electrode, and the cathode is iron. Extruded graphite is usually applied as the anode. Graphite anode has good electrical conductivity, high purity and good mechanical strength. With the enlargement of electrolyzers running at high currents and the development of multi-stage electrolyzers equipped with multiple artificial graphite electrode plates between anode and cathode, the production capacity of electrolyzers has increased rapidly.

Sodium has a wide range of uses in medicine, organic synthesis, cooling materials for high-speed breeding reactors, and sodium-sulfur secondary batteries for electric vehicles. The current main method of producing sodium is Downs method. The anode in electrolysis is an artificial graphite electrode, and the cathode is iron. The artificial graphite electrode not only has electrical conductivity, but also does not melt and deform at high temperature, and can maintain a certain mechanical strength.


Graphite anodes are mostly in the shape of plates and rods, but there are also some complex shapes or high hardness, which are difficult to process. Regardless of shape, size, hardness, Yinxuan Carbon could complete product processing that meets customer requirements. Welcome to Yinxuan factory for consultation and visit.