Flux Consumption per sqr m
Treatment and Utilization of Spent Acid that Used in Galvanizing ( Pickling )
1- 6 HCl + Fe 2 O 3 ----- 2 FeCl 3 + 3 H 2 O 2- Fe + HCl -------- Fe Cl 2 + H 2 The main concentration of pickling tank is 16% wt/ wt . The performance of the tank can't be effective when it reaches 5 wt/ wt . At this point the iron content is 150 gr / lit . it means you have ore or iron mine . There is more than one option to treat this consumed acid : · Acid Regeneration : it can be used on or off line by using special type of resins in order to get rid of iron then concentrate it to reach crystal stage as FeCl 3 and it is necessary to keep Fe ...
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