Hydrometallurgy

Removing impurities and recovering metal, separating sulfuric acid from dissolved metal salts in refineries, electrolyte bleed streams and leach streams.

One of the most widely used acid recycling systems in the world, the Eco-Tec Acid Purification Unit, APU®, continuously removes dissolved metals which contaminate acid baths. Since up to 70% of original sulfuric acid is lost in dumping, the APU® dramatically reduces acid and related waste treatment expenses. The APU® uses a resin sorption process and simple water wash to recover acid. Online bath purification with the APU® is used in many industries from window manufacturers, steel mills, capacitor plants to copper refineries.

Hydrometallurgy Information
Hydromet Bleedstreams
Benefits
Reduction in impurity levels - consistently higher purity electrolyte
Savings in sulfuric acid purchases
Savings in lime purchases
More efficient electrolytic process lower voltage/higher current efficiency
Higher cathode purity
Small space requirement
Technical Papers
Technical Paper 183 - Control of Copper Electrolyte Impurities - Overview of the Short Bed Ion Exchange Technique and Phelps Dodge El Paso Case Study. Download
Technical Paper 167 - Electrolyte impurity control Chinchpada, Copper 2003. Download
Exploration + Processing Article - Download
Join our newsletter!
High-Purity Water, Simple Package, Proven Reliablity Acids and Metals: recover, recycle, reuse, and reduce. Controlling the impurities in oil, gas, and industrial processes Initatives in emerging and changing industries