Mineral acids are very important in chemical procedures. Not only as a reaction participant and catalyst, but also as an aid, as in the case of sulfuric acid for drying gasses or during extractive distillation, but also as a cleaning agent as used in the electronic industry. Through our experience with corrosion-resistant materials, we have process know-how in mineral acid handling and offer you in part our own processes, such as for example the energy-saving concentration of nitric acids (USA 10/296,297).

We do have experience in the following processes:

Recovery and Purification

• Denitration and recovery of mixed acids from nitration plants
• Hydrochloric acid recovery
• Cleaning of hydrochloric acid
• Purification of spent acids from etching processes
• High purified (electronic grade) acides: HCl, HNO3, H2SO4

Concentration

• Sulphuric Acid Concentration
• Nitric Acid Concentration
• Concentration of HCl by extractive distillation or two pressure process

Others

• Sulphuric Acid Dilution

Horizontal boiler for a sulfuric
acid concentration with two
domes