The regeneration process presented here was developed by Schulz+Partner in cooperation with Cesus/Areva (France). It is used for recovering pickling bath acids and separating the metals contained in them. The following preconditions must be met: The acids have to be steam-volatile, such as nitric acid, hydrochloric acid or hydrofluoric acid Other acids (such as sulfuric acid or phosphoric acid) cannot be processed. They remain in the bath as additional residues The following recovery rates can be achieved: Nitric acid up to 99% Hydrofluoric acid, depending on metal and metal concentration between 40 and 99% Water between 85 and 95% (depending on type of crystals) Metal up to 100% Advantages of the process: No wastewater; full recovery and separation Vacuum process, therefore lower corrosion risk Compact process We already have experience with: Zirconium Titanium Stainless steel High-alloyed stainless steel Crystallisation system AREVA, France

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