Profitable Uses for Anhydrite from the Production of Hydrofluoric Acid

The raw materials for producing hydrofluoric acid on an industrial scale are fluorspar and sulphuric acid. For every ton of hydrofluoric acid yielded by this reaction, about 3.6 tons of anhydrite is produced.

In contrast to the hydrofluoric acid, which was always the primary product, anhydrite was regarded as a waste product during the initial decades of hydrofluoric acid production. The idea was to remove it at the lowest possible cost. Two main methods were:

-    Dumping on waste tips

-    Pumping, in slurry form, into lakes, rivers, oceans.

Buss ChemTech works together with Knopp Engineering, who have developed the expertise required to turn synthetic anhydrite into valuable building materials. 

To read about their solutions for the building industry please go to the web-site shown above.