The Markets of the SGL Group

The SGL Group has a wide product portfolio which extends from amorphous carbon to high-purity graphites, and from carbon fibers to composite materials and components. This BROAD BASE enables us to supply BEST SOLUTIONS to a large number of markets.

Food

Our Applications

Hydrochloric acid (HCl) is a strong inorganic acid which is widely used in the chemical and other industries, e.g. for chlorination processes, production of vinyl chloride (plastics), TDI/MDI (polyurethanes), pickling of steel, pH control, neutralization, and regeneration of ion exchangers.

Our corrosion resistant systems and equipment solutions enable safe and efficient synthesis and processing of HCl gas and HCl acid. We have built more than 500 HCl synthesis units, among those the biggest synthesis units worldwide. Our innovative steam generation, two pressure distillation and extractive distillation systems are designed to maximize energy efficiency of HCl processing.

Methylene diphenyl diisocyanate (MDI) and toluene diisocyanate (TDI) are high tonnage products which are mainly used for the production of polyurethanes. The synthesis of MDI and TDI comprises a phosgenation step, in which hydrochloric acid is formed as a by-product.

Our corrosion resistant systems and equipment solutions enable safe and efficient processing of hydrochloric acid. Examples are graphite columns for the absorption and purification of HCl process gas as well as SiC heat exchangers for the toluene nitration process.

Phosphoric acid (H3PO4) is widely used in the chemical and in the food industry, e.g. for the production of phosphate based fertilizers and phosphonates for water treatment.

We offer a comprehensive range of corrosion resistant equipment for the production and processing of phosphoric acid. Examples are equipment for the concentration of wet process acid and for the purification of concentrated acid. The biggest heat exchangers, columns and pumps in use have been designed and produced by SGL Group.

Sulfuric acid (H2SO4) is a strong inorganic acid which is widely used in the chemical and other industries. Principal uses include lead-acid batteries, ore processing, fertilizer manufacturing, oil refining, waste water processing and chemical synthesis.

We offer a comprehensive range of corrosion resistant system and equipment solutions for the processing of sulfuric acid. Examples are systems for the dilution of concentrated acid and equipment for the reconcentration of diluted acid.