Contact Process: Sulfuric Acid and Oleum


Sulfuric acid (H2SO4) is the most produced chemical in the world. It is widely used in all industries for the manufacture of different substances, and sold in the form of various solutions of H2SOin water or of sulfur trioxide (SO3) in H2SO4.

Vaisala K-PATENTS® Process Refractometer PR-43- G is used in various stages of the Contact Process. The refractometer monitors and controls the concentration of acid during drying, absorption and dilution steps to keep the concentration of H2SO4constant at 93, 98 or 104 % by weight.

Download the application note in PDF by filling the form.

Go back to all Chemical processing applications

Contact Process: Sulfuric Acid and Oleum

By submitting this form you acknowledge Vaisala’s Privacy Policy
You can manage your preferences here