Sulfuric acid purification for aluminum anodizing

Purifies and Reclaims Acid and Etchants

The AnoPur™, CER™, and DPU™ Systems from Kovalus Separation Solutions are sophisticated ion exchange and acid recovery systems engineered to enhance resource efficiency in the aluminum anodizing industry. These systems effectively purify sulfuric acid, reclaim caustic soda, and recover phosphoric acid, ensuring reduced chemical costs and waste.

The AnoPur™ system utilizes a membrane filtration method tailored for sulfuric acid purification, continuously removing dissolved aluminum to minimize contaminants. Its operation eliminates the need for bath decanting, stabilizes production quality, and dramatically reduces acid purchasing expenses. Meanwhile, the CER™ system employs caustic etch recovery to crystallize and extract aluminum from caustic etchants. This process decreases waste treatment costs while producing marketable aluminum trihydrate crystals.

The DPU™ system focuses on phosphoric acid recovery, using a combination of cation and water-elutable resin beds to concentrate phosphoric acid up to 85%. This approach supports the recycling of rinse water and contributes to lower operational expenditures.

All systems offer continuous, automated operation and are integrable into existing production lines. They reduce energy requirements, aligning with environmental compliance standards, and are available with customization options to meet specific industrial needs. These systems stand out for their robust construction and capability to handle the rigors of industrial anodizing environments.