emew Blog

Many industries generate acid mist as a result of their industrial processes. In most cases the acid mist will be caused by usage of inorganic acids, and in particular sulfuric acid. Sulfuric acid is mostly used in a production of fertilizers, and industries like pulp and paper, iron and steel, mining, refining and wastewater treatment.  Acid mist is formed as a condensation of acid vapour and the extent of the mist will depend on the industry, process and solution itself.

 

Topics: Video

Today we would like to answer some frequently asked questions about types of emew cells and their production capacities.

Topics: Video

Today we would like to answer some frequently asked questions about emew cathode quality and emew anode coating and lifespan.

Topics: Video

Why is it easy to electrowin some metals, and almost impossible to electrowin others?

 

In a few minutes, I will explain why. The answer lies in the Electrochemical Series, and its relation to electrowinning.

Topics: electrowinning, General

What is SX-EW?

Hydrometallurgical extraction is an effective way to recover copper from low-grade copper ores.

 

But how is it done?

 

Heap leaching is the method most commonly chosen for copper recovery from oxide ores. An acidic solution is used to leach the metal, dissolving the copper into what is referred to as a pregnant leach solution (PLS). This solution is collected and purified by solvent extraction (SX). SX is a two-step process of loading the copper into an organic solution, followed by stripping the copper from the organic, into an aqueous solution.

 

Topics: Refinery Optimization

Due to the increase in electric and electronic equipment (EEEs), high-purity silver continues to be in high demand. For the past 4 years, silver demand has exceeded silver mining production, but the global supply has nearly met the demand each and every year – thanks to silver recovery and silver refining. Silver recycling will also be critical to meet future demand, especially as we see the general demand of metals increase across the globe, in relation with technological growth. High-purity silver can be produced from silver refining and silver recycling by utilizing a series methods and processes, such as silver electrowinning and electrorefining. I’d like to delve into how these processes are carried out, and the outlook for silver production.

Topics: Refining, electrowinning, emew, metal powders, metal recycling

Topics: copper, mining, environmental, metal recycling, effluent treatment, Wastewater Treatment, Refinery Optimization

A review of why new technologies are going to drive the future of cobalt recovery and production.

Background of Cobalt:

Cobalt, the element that is just starting to create a lot of buzz ; from the auto industry to electronics production, the popularity of cobalt is growing rapidly – chiefly for its use in rechargeable batteries. As global demand for cobalt increases, current sources of cobalt may not be sufficient. This imbalance between supply and demand may open doors for novel methods of recovery and recycling of cobalt.

Topics: Advanced Battery Materials

With technology changing so fast, new raw materials are taking centre stage every day, making it more and more difficult to predict which metals will hold or lose their value in the next 50 years. Recent innovations are making electric cars powered by renewable energy mainstream, fuelling development of novel and more efficient battery technologies.  All of these technological developments depend on resources such as nickel, copper, and cobalt.  Technological trends coupled with geopolitical stability contribute to supply and demand which in turn dictate metal prices. 

Topics: market, General