Acid is regenerated and recovered from the spent acid in steel pickling plants. The spent acid containing chlorides of iron is oxidized in a fluidized bed reactor to produce iron oxide and HCl vapours. Whereas iron oxide is a useful bye-product, the HCl is absorbed in stoichiometric quantities of water to obtain 17 to 20% hydrochloric acid and reused for pickling. We design, manufacture and Supply special tray-type absorbers for the purpose. Finally, the gases are passed through packed columns to limit emissions within pollution control limits.
Attributes :
- Smooth working
- Excellent pollution control limits
- Easy passage through packed columns
- High reliability
Used For :
- Absorbing HCl in stoichiometric water quantities