Eco Tec - Caustic Etch

Etching or chemical milling with caustic soda is often the greatest operating expense in aluminum finishing.

Eco-Tec's Caustic Etch Recovery System, CER, continuously crystallizes and removes dissolved aluminum from caustic soda etchants used in processing aluminum and the caustic is returned to the etching/milling tanks for reuse.

APU® Aluminum Information

75% - 95% reduction in caustic soda purchases
Dramatically reduced aluminum waste sludge generation of 70% - 80%
Production of saleable by-product (aluminum trihydrate)

White Paper - Cost Savings and Quality Improvements Through Economical Chemical Recovery of Caustic Etch and Anodizing Baths Download

Technical Paper 162 - Chemical Recovery of Caustic Etch & Anodizing Baths - Equipment Workshop 2002. Download

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Acids and Metals: recover, recycle, reuse, and reduce.

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