The Acid regeneration PLANT (arp) can decompose the waste acid produced by the acid washing unit, obtaining regenerated hydrochloric acid with a concentration basically the same as the original waste acid and iron oxide powder (or containing a small amount of iron salts). After adjusting the concentration of the regenerated acid, it can be reused in the acid washing production line.
Production Process Overview
Principle of Waste Acid Regeneration Plant
4FeCL2+4H2O+O2=2Fe2O3+8HCL
2FeCL3+3H2O=Fe2O3+6HCL