The Acid Division has three sulphuric acid plants, two streams of phosphoric acid plants and a granulation plant to make granular fertiliser products. Raw materials used in Richards Bay are phosphate rock which is produced at our Mining Division and transported to the Acid Division via rail and Sulphur which is converted into sulphuric acid in the Sulphuric Acid Plant is imported via the port of Richards Bay. Sulphuric Acid is transferred to the Phosphoric Acid Plant where it is used to digest the phosphate rock to convert it into Phosphoric Acid. The waste heat resulting from Sulphur combustion and conversion is used to produce steam which is used for concentrating the Phosphoric Acid into Merchant Grade Acid. The phosphoric acid is either exported in its acid form, sold locally, or used in the production of granular fertiliser at Foskor. Granular fertiliser is mainly sold locally.
