Vestolit’s PVC production plant in Marl, Germany, is fully backward integrated, meaning that the monomer building blocks to produce PVC are manufactured at this same site. An important preliminary product is chlorine, which is produced by electrolysis using salt (sodium chloride). The salt reaches the site dissolved in water via pipeline. In Marl, Vestolit operates a modern membrane electrolysis facility, where the salt solution is separated into chlorine, caustic soda and hydrogen using an electric current.
Because electrolysis is an energy-intensive process, electrical energy is considered a raw material. By replacing a portion of the regular electric energy supply to renewable energy, Vestolit can reduce its carbon emissions. And additionally, offer a byproduct made from renewable energy: Caustic Soda BLUE.
Find out more